./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-56.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_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/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_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/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_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/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 dac49eff911c415c5e3abe3f83531cb71a1bf616fed1a86cc9f731a40011a721 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:01:16,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:01:17,106 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:01:17,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:01:17,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:01:17,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:01:17,149 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:01:17,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:01:17,150 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:01:17,150 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:01:17,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:01:17,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:01:17,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:01:17,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:01:17,151 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:01:17,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:01:17,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:01:17,151 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:01:17,152 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:01:17,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:01:17,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:01:17,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:01:17,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:01:17,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:01:17,152 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:01:17,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:01:17,153 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:01:17,153 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:01:17,153 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:01:17,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:17,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:17,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:17,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:17,154 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:01:17,154 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:17,154 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:17,154 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:17,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:17,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:01:17,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:01:17,155 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:01:17,155 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:01:17,155 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:01:17,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:01:17,155 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:01:17,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:01:17,156 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:01:17,156 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:01:17,156 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_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/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 -> dac49eff911c415c5e3abe3f83531cb71a1bf616fed1a86cc9f731a40011a721 [2024-11-24 02:01:17,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:01:17,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:01:17,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:01:17,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:01:17,547 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:01:17,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-56.i [2024-11-24 02:01:21,051 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/data/90622cefb/6f3f536322714e1ca05e6fa12aec83d6/FLAGc086fbb90 [2024-11-24 02:01:21,459 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:01:21,460 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-56.i [2024-11-24 02:01:21,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/data/90622cefb/6f3f536322714e1ca05e6fa12aec83d6/FLAGc086fbb90 [2024-11-24 02:01:21,508 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/data/90622cefb/6f3f536322714e1ca05e6fa12aec83d6 [2024-11-24 02:01:21,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:01:21,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:01:21,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:21,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:01:21,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:01:21,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:21,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b89eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21, skipping insertion in model container [2024-11-24 02:01:21,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:21,570 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:01:21,780 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_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-56.i[917,930] [2024-11-24 02:01:21,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:21,891 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:01:21,907 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_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-56.i[917,930] [2024-11-24 02:01:21,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:21,987 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:01:21,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21 WrapperNode [2024-11-24 02:01:21,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:21,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:21,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:01:21,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:01:21,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,074 INFO L138 Inliner]: procedures = 30, calls = 178, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 584 [2024-11-24 02:01:22,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:22,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:01:22,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:01:22,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:01:22,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,116 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-24 02:01:22,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,117 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,155 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:01:22,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:01:22,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:01:22,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:01:22,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (1/1) ... [2024-11-24 02:01:22,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:22,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:01:22,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:01:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:01:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-24 02:01:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-24 02:01:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-24 02:01:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 02:01:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-24 02:01:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 02:01:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:01:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:01:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 02:01:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:01:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:01:22,484 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:01:22,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:01:23,747 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-24 02:01:23,748 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:01:23,763 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:01:23,764 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:01:23,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:23 BoogieIcfgContainer [2024-11-24 02:01:23,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:01:23,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:01:23,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:01:23,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:01:23,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:01:21" (1/3) ... [2024-11-24 02:01:23,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d03defe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:23, skipping insertion in model container [2024-11-24 02:01:23,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:21" (2/3) ... [2024-11-24 02:01:23,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d03defe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:23, skipping insertion in model container [2024-11-24 02:01:23,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:23" (3/3) ... [2024-11-24 02:01:23,778 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-56.i [2024-11-24 02:01:23,798 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:01:23,800 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-56.i that has 2 procedures, 126 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:01:23,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:01:23,888 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;@15a41bd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:01:23,888 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:01:23,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 105 states have internal predecessors, (149), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 02:01:23,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:01:23,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:23,941 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:23,941 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:23,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:23,948 INFO L85 PathProgramCache]: Analyzing trace with hash 607828223, now seen corresponding path program 1 times [2024-11-24 02:01:23,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:23,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888804187] [2024-11-24 02:01:23,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:23,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:24,493 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-24 02:01:24,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:24,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888804187] [2024-11-24 02:01:24,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888804187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:24,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213032633] [2024-11-24 02:01:24,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:24,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:24,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:24,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:24,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:01:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:24,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:01:24,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:25,023 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-24 02:01:25,023 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:01:25,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213032633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:25,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:01:25,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 02:01:25,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707532715] [2024-11-24 02:01:25,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:25,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:01:25,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:25,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:01:25,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:01:25,067 INFO L87 Difference]: Start difference. First operand has 126 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 105 states have internal predecessors, (149), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:01:25,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:25,104 INFO L93 Difference]: Finished difference Result 245 states and 387 transitions. [2024-11-24 02:01:25,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:01:25,106 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-11-24 02:01:25,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:25,115 INFO L225 Difference]: With dead ends: 245 [2024-11-24 02:01:25,115 INFO L226 Difference]: Without dead ends: 122 [2024-11-24 02:01:25,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:01:25,126 INFO L435 NwaCegarLoop]: 180 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, 180 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:25,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-24 02:01:25,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-24 02:01:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.4059405940594059) internal successors, (142), 101 states have internal predecessors, (142), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 02:01:25,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 180 transitions. [2024-11-24 02:01:25,187 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 180 transitions. Word has length 151 [2024-11-24 02:01:25,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:25,187 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 180 transitions. [2024-11-24 02:01:25,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:01:25,188 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 180 transitions. [2024-11-24 02:01:25,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:01:25,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:25,193 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:25,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 02:01:25,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 02:01:25,395 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:25,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:25,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1661937133, now seen corresponding path program 1 times [2024-11-24 02:01:25,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:25,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849865812] [2024-11-24 02:01:25,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:25,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:26,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:26,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849865812] [2024-11-24 02:01:26,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849865812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:26,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:26,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:01:26,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968494955] [2024-11-24 02:01:26,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:26,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:01:26,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:26,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:01:26,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:01:26,089 INFO L87 Difference]: Start difference. First operand 122 states and 180 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:01:26,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:26,165 INFO L93 Difference]: Finished difference Result 243 states and 360 transitions. [2024-11-24 02:01:26,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:01:26,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-11-24 02:01:26,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:26,168 INFO L225 Difference]: With dead ends: 243 [2024-11-24 02:01:26,169 INFO L226 Difference]: Without dead ends: 124 [2024-11-24 02:01:26,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:01:26,176 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:26,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 523 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:26,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-24 02:01:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-24 02:01:26,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 103 states have (on average 1.3980582524271845) internal successors, (144), 103 states have internal predecessors, (144), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 02:01:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 182 transitions. [2024-11-24 02:01:26,207 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 182 transitions. Word has length 151 [2024-11-24 02:01:26,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:26,208 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 182 transitions. [2024-11-24 02:01:26,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:01:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 182 transitions. [2024-11-24 02:01:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:01:26,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:26,212 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:26,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:01:26,212 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:26,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:26,213 INFO L85 PathProgramCache]: Analyzing trace with hash 982664879, now seen corresponding path program 1 times [2024-11-24 02:01:26,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:26,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079957760] [2024-11-24 02:01:26,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:26,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:26,558 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:26,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:26,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079957760] [2024-11-24 02:01:26,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079957760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:26,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:26,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:26,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902392037] [2024-11-24 02:01:26,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:26,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:26,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:26,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:26,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:26,562 INFO L87 Difference]: Start difference. First operand 124 states and 182 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:26,592 INFO L93 Difference]: Finished difference Result 246 states and 363 transitions. [2024-11-24 02:01:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:26,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-24 02:01:26,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:26,596 INFO L225 Difference]: With dead ends: 246 [2024-11-24 02:01:26,596 INFO L226 Difference]: Without dead ends: 125 [2024-11-24 02:01:26,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:26,599 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:26,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:26,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-24 02:01:26,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-24 02:01:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 104 states have (on average 1.3942307692307692) internal successors, (145), 104 states have internal predecessors, (145), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 02:01:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2024-11-24 02:01:26,620 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 183 transitions. Word has length 151 [2024-11-24 02:01:26,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:26,621 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 183 transitions. [2024-11-24 02:01:26,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:26,622 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 183 transitions. [2024-11-24 02:01:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:01:26,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:26,625 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:26,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:01:26,625 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:26,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:26,626 INFO L85 PathProgramCache]: Analyzing trace with hash 165016429, now seen corresponding path program 1 times [2024-11-24 02:01:26,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:26,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870545117] [2024-11-24 02:01:26,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:26,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:30,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:30,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870545117] [2024-11-24 02:01:30,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870545117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:30,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:30,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:01:30,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258506873] [2024-11-24 02:01:30,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:30,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:01:30,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:30,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:01:30,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:01:30,096 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:33,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:33,478 INFO L93 Difference]: Finished difference Result 484 states and 714 transitions. [2024-11-24 02:01:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:01:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-24 02:01:33,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:33,482 INFO L225 Difference]: With dead ends: 484 [2024-11-24 02:01:33,482 INFO L226 Difference]: Without dead ends: 362 [2024-11-24 02:01:33,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:01:33,486 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 435 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:33,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1428 Invalid, 1857 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-24 02:01:33,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-24 02:01:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 205. [2024-11-24 02:01:33,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 164 states have (on average 1.3780487804878048) internal successors, (226), 164 states have internal predecessors, (226), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:01:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 302 transitions. [2024-11-24 02:01:33,517 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 302 transitions. Word has length 151 [2024-11-24 02:01:33,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:33,518 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 302 transitions. [2024-11-24 02:01:33,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:33,518 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 302 transitions. [2024-11-24 02:01:33,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:01:33,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:33,520 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:33,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:01:33,520 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:33,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:33,521 INFO L85 PathProgramCache]: Analyzing trace with hash -53838289, now seen corresponding path program 1 times [2024-11-24 02:01:33,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:33,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642365498] [2024-11-24 02:01:33,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:33,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:36,727 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:36,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:36,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642365498] [2024-11-24 02:01:36,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642365498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:36,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:36,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 02:01:36,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635245621] [2024-11-24 02:01:36,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:36,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 02:01:36,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:36,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 02:01:36,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:01:36,733 INFO L87 Difference]: Start difference. First operand 205 states and 302 transitions. Second operand has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 17 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:01:40,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:40,538 INFO L93 Difference]: Finished difference Result 506 states and 749 transitions. [2024-11-24 02:01:40,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 02:01:40,539 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 17 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-11-24 02:01:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:40,543 INFO L225 Difference]: With dead ends: 506 [2024-11-24 02:01:40,543 INFO L226 Difference]: Without dead ends: 384 [2024-11-24 02:01:40,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2024-11-24 02:01:40,545 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 732 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:40,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1474 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-24 02:01:40,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-24 02:01:40,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 205. [2024-11-24 02:01:40,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 164 states have (on average 1.3780487804878048) internal successors, (226), 164 states have internal predecessors, (226), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:01:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 302 transitions. [2024-11-24 02:01:40,585 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 302 transitions. Word has length 151 [2024-11-24 02:01:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:40,586 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 302 transitions. [2024-11-24 02:01:40,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 17 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:01:40,587 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 302 transitions. [2024-11-24 02:01:40,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 02:01:40,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:40,593 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:40,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:01:40,594 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:40,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:40,594 INFO L85 PathProgramCache]: Analyzing trace with hash -6012814, now seen corresponding path program 1 times [2024-11-24 02:01:40,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:40,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758142585] [2024-11-24 02:01:40,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:40,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:40,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:40,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758142585] [2024-11-24 02:01:40,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758142585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:40,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:40,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:40,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199520764] [2024-11-24 02:01:40,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:40,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:40,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:40,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:40,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:40,770 INFO L87 Difference]: Start difference. First operand 205 states and 302 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:40,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:40,948 INFO L93 Difference]: Finished difference Result 328 states and 484 transitions. [2024-11-24 02:01:40,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:40,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-24 02:01:40,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:40,951 INFO L225 Difference]: With dead ends: 328 [2024-11-24 02:01:40,952 INFO L226 Difference]: Without dead ends: 206 [2024-11-24 02:01:40,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:40,953 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:40,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 346 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:01:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-24 02:01:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-11-24 02:01:40,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:01:40,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 303 transitions. [2024-11-24 02:01:40,980 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 303 transitions. Word has length 152 [2024-11-24 02:01:40,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:40,980 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 303 transitions. [2024-11-24 02:01:40,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:40,981 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 303 transitions. [2024-11-24 02:01:40,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 02:01:40,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:40,983 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:40,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:01:40,983 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:40,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:40,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1182836572, now seen corresponding path program 1 times [2024-11-24 02:01:40,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:40,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783918781] [2024-11-24 02:01:40,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:40,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:41,130 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:41,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:41,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783918781] [2024-11-24 02:01:41,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783918781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:41,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:41,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:41,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237217559] [2024-11-24 02:01:41,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:41,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:41,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:41,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:41,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:41,134 INFO L87 Difference]: Start difference. First operand 206 states and 303 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:41,311 INFO L93 Difference]: Finished difference Result 330 states and 486 transitions. [2024-11-24 02:01:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:41,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-24 02:01:41,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:41,314 INFO L225 Difference]: With dead ends: 330 [2024-11-24 02:01:41,314 INFO L226 Difference]: Without dead ends: 207 [2024-11-24 02:01:41,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:41,316 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:41,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:01:41,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-24 02:01:41,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-24 02:01:41,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:01:41,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 304 transitions. [2024-11-24 02:01:41,348 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 304 transitions. Word has length 152 [2024-11-24 02:01:41,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:41,349 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 304 transitions. [2024-11-24 02:01:41,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 304 transitions. [2024-11-24 02:01:41,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 02:01:41,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:41,353 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:41,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:01:41,354 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:41,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:41,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1365661008, now seen corresponding path program 1 times [2024-11-24 02:01:41,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:41,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269483348] [2024-11-24 02:01:41,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:41,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:41,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:41,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269483348] [2024-11-24 02:01:41,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269483348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:41,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:41,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:41,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715018217] [2024-11-24 02:01:41,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:41,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:41,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:41,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:41,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:41,515 INFO L87 Difference]: Start difference. First operand 207 states and 304 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:41,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:41,688 INFO L93 Difference]: Finished difference Result 331 states and 486 transitions. [2024-11-24 02:01:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:41,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-24 02:01:41,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:41,692 INFO L225 Difference]: With dead ends: 331 [2024-11-24 02:01:41,692 INFO L226 Difference]: Without dead ends: 207 [2024-11-24 02:01:41,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:41,697 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:41,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:41,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-24 02:01:41,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-24 02:01:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 166 states have (on average 1.3614457831325302) internal successors, (226), 166 states have internal predecessors, (226), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:01:41,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 302 transitions. [2024-11-24 02:01:41,731 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 302 transitions. Word has length 152 [2024-11-24 02:01:41,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:41,733 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 302 transitions. [2024-11-24 02:01:41,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:41,736 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 302 transitions. [2024-11-24 02:01:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 02:01:41,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:41,740 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:41,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:01:41,741 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:41,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:41,741 INFO L85 PathProgramCache]: Analyzing trace with hash -28424802, now seen corresponding path program 1 times [2024-11-24 02:01:41,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:41,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447256081] [2024-11-24 02:01:41,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:41,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:41,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:41,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447256081] [2024-11-24 02:01:41,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447256081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:41,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:41,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:41,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660834373] [2024-11-24 02:01:41,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:41,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:41,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:41,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:41,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:41,895 INFO L87 Difference]: Start difference. First operand 207 states and 302 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:42,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:42,074 INFO L93 Difference]: Finished difference Result 331 states and 483 transitions. [2024-11-24 02:01:42,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:42,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-24 02:01:42,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:42,077 INFO L225 Difference]: With dead ends: 331 [2024-11-24 02:01:42,080 INFO L226 Difference]: Without dead ends: 207 [2024-11-24 02:01:42,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:42,082 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:42,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:42,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-24 02:01:42,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-24 02:01:42,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 166 states have (on average 1.3493975903614457) internal successors, (224), 166 states have internal predecessors, (224), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:01:42,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 300 transitions. [2024-11-24 02:01:42,113 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 300 transitions. Word has length 152 [2024-11-24 02:01:42,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:42,116 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 300 transitions. [2024-11-24 02:01:42,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:42,116 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 300 transitions. [2024-11-24 02:01:42,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:01:42,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:42,119 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:42,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 02:01:42,119 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:42,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:42,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1035364039, now seen corresponding path program 1 times [2024-11-24 02:01:42,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:42,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726299865] [2024-11-24 02:01:42,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:42,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:43,031 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:43,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:43,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726299865] [2024-11-24 02:01:43,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726299865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:43,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:43,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:01:43,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094448141] [2024-11-24 02:01:43,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:43,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 02:01:43,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:43,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 02:01:43,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:01:43,034 INFO L87 Difference]: Start difference. First operand 207 states and 300 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:44,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:44,455 INFO L93 Difference]: Finished difference Result 385 states and 560 transitions. [2024-11-24 02:01:44,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:01:44,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-24 02:01:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:44,458 INFO L225 Difference]: With dead ends: 385 [2024-11-24 02:01:44,459 INFO L226 Difference]: Without dead ends: 261 [2024-11-24 02:01:44,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:01:44,460 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 262 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:44,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 516 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 02:01:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-24 02:01:44,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 224. [2024-11-24 02:01:44,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 183 states have (on average 1.3715846994535519) internal successors, (251), 183 states have internal predecessors, (251), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:01:44,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 327 transitions. [2024-11-24 02:01:44,490 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 327 transitions. Word has length 153 [2024-11-24 02:01:44,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:44,491 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 327 transitions. [2024-11-24 02:01:44,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:01:44,491 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 327 transitions. [2024-11-24 02:01:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:01:44,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:44,494 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:44,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 02:01:44,494 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:44,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:44,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1254218757, now seen corresponding path program 1 times [2024-11-24 02:01:44,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:44,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778476051] [2024-11-24 02:01:44,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:44,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:45,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:45,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778476051] [2024-11-24 02:01:45,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778476051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:45,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:45,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:01:45,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782546437] [2024-11-24 02:01:45,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:45,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:01:45,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:45,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:01:45,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:01:45,983 INFO L87 Difference]: Start difference. First operand 224 states and 327 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:01:47,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:47,720 INFO L93 Difference]: Finished difference Result 417 states and 611 transitions. [2024-11-24 02:01:47,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:01:47,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-11-24 02:01:47,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:47,724 INFO L225 Difference]: With dead ends: 417 [2024-11-24 02:01:47,724 INFO L226 Difference]: Without dead ends: 276 [2024-11-24 02:01:47,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:01:47,726 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 207 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:47,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 567 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 02:01:47,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-24 02:01:47,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 224. [2024-11-24 02:01:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 183 states have (on average 1.3715846994535519) internal successors, (251), 183 states have internal predecessors, (251), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:01:47,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 327 transitions. [2024-11-24 02:01:47,773 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 327 transitions. Word has length 153 [2024-11-24 02:01:47,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:47,774 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 327 transitions. [2024-11-24 02:01:47,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:01:47,774 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 327 transitions. [2024-11-24 02:01:47,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:01:47,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:47,778 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:47,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 02:01:47,779 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:47,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:47,779 INFO L85 PathProgramCache]: Analyzing trace with hash -618514157, now seen corresponding path program 1 times [2024-11-24 02:01:47,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:47,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735567690] [2024-11-24 02:01:47,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:47,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:55,305 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:01:55,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:55,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735567690] [2024-11-24 02:01:55,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735567690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:55,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:55,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:01:55,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875243060] [2024-11-24 02:01:55,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:55,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:01:55,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:55,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:01:55,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:01:55,307 INFO L87 Difference]: Start difference. First operand 224 states and 327 transitions. Second operand has 18 states, 15 states have (on average 4.066666666666666) internal successors, (61), 18 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:02:01,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:01,266 INFO L93 Difference]: Finished difference Result 548 states and 804 transitions. [2024-11-24 02:02:01,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:02:01,267 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 4.066666666666666) internal successors, (61), 18 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-11-24 02:02:01,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:01,270 INFO L225 Difference]: With dead ends: 548 [2024-11-24 02:02:01,270 INFO L226 Difference]: Without dead ends: 407 [2024-11-24 02:02:01,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=176, Invalid=880, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 02:02:01,272 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 833 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:01,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1598 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 02:02:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-24 02:02:01,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 248. [2024-11-24 02:02:01,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 207 states have (on average 1.396135265700483) internal successors, (289), 207 states have internal predecessors, (289), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:02:01,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 365 transitions. [2024-11-24 02:02:01,332 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 365 transitions. Word has length 153 [2024-11-24 02:02:01,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:01,333 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 365 transitions. [2024-11-24 02:02:01,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 4.066666666666666) internal successors, (61), 18 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:02:01,333 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 365 transitions. [2024-11-24 02:02:01,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:01,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:01,335 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:01,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 02:02:01,336 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:01,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:01,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1205320171, now seen corresponding path program 1 times [2024-11-24 02:02:01,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:01,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648280844] [2024-11-24 02:02:01,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:01,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:02:06,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:06,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648280844] [2024-11-24 02:02:06,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648280844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:06,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:06,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:02:06,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634302331] [2024-11-24 02:02:06,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:06,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:02:06,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:06,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:02:06,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:02:06,947 INFO L87 Difference]: Start difference. First operand 248 states and 365 transitions. Second operand has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:02:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:10,754 INFO L93 Difference]: Finished difference Result 640 states and 946 transitions. [2024-11-24 02:02:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:02:10,755 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-24 02:02:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:10,758 INFO L225 Difference]: With dead ends: 640 [2024-11-24 02:02:10,758 INFO L226 Difference]: Without dead ends: 495 [2024-11-24 02:02:10,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2024-11-24 02:02:10,760 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 517 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:10,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1187 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 02:02:10,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-24 02:02:10,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 285. [2024-11-24 02:02:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 244 states have (on average 1.4221311475409837) internal successors, (347), 244 states have internal predecessors, (347), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 02:02:10,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 423 transitions. [2024-11-24 02:02:10,800 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 423 transitions. Word has length 153 [2024-11-24 02:02:10,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:10,801 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 423 transitions. [2024-11-24 02:02:10,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:02:10,801 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 423 transitions. [2024-11-24 02:02:10,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:10,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:10,803 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:10,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 02:02:10,804 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:10,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1424174889, now seen corresponding path program 1 times [2024-11-24 02:02:10,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:10,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895414407] [2024-11-24 02:02:10,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:10,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:02:14,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895414407] [2024-11-24 02:02:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895414407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:14,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:14,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:02:14,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86107353] [2024-11-24 02:02:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:14,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:02:14,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:14,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:02:14,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:02:14,773 INFO L87 Difference]: Start difference. First operand 285 states and 423 transitions. Second operand has 11 states, 9 states have (on average 6.777777777777778) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:02:16,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:16,686 INFO L93 Difference]: Finished difference Result 532 states and 782 transitions. [2024-11-24 02:02:16,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:02:16,687 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.777777777777778) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-24 02:02:16,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:16,690 INFO L225 Difference]: With dead ends: 532 [2024-11-24 02:02:16,690 INFO L226 Difference]: Without dead ends: 387 [2024-11-24 02:02:16,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:02:16,692 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 525 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:16,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 552 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 02:02:16,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-24 02:02:16,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 350. [2024-11-24 02:02:16,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 303 states have (on average 1.4092409240924093) internal successors, (427), 304 states have internal predecessors, (427), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:02:16,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 511 transitions. [2024-11-24 02:02:16,748 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 511 transitions. Word has length 153 [2024-11-24 02:02:16,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:16,748 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 511 transitions. [2024-11-24 02:02:16,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.777777777777778) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:02:16,749 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 511 transitions. [2024-11-24 02:02:16,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:16,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:16,752 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:16,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 02:02:16,752 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:16,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash 121992353, now seen corresponding path program 1 times [2024-11-24 02:02:16,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:16,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242378646] [2024-11-24 02:02:16,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:16,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:02:17,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:17,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242378646] [2024-11-24 02:02:17,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242378646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:17,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:17,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:02:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629667332] [2024-11-24 02:02:17,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:17,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:02:17,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:17,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:02:17,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:02:17,317 INFO L87 Difference]: Start difference. First operand 350 states and 511 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:02:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:18,067 INFO L93 Difference]: Finished difference Result 727 states and 1073 transitions. [2024-11-24 02:02:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:02:18,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-24 02:02:18,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:18,072 INFO L225 Difference]: With dead ends: 727 [2024-11-24 02:02:18,073 INFO L226 Difference]: Without dead ends: 512 [2024-11-24 02:02:18,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:02:18,075 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 200 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:18,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 376 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:02:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-24 02:02:18,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 425. [2024-11-24 02:02:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 378 states have (on average 1.447089947089947) internal successors, (547), 379 states have internal predecessors, (547), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:02:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 631 transitions. [2024-11-24 02:02:18,134 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 631 transitions. Word has length 153 [2024-11-24 02:02:18,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:18,135 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 631 transitions. [2024-11-24 02:02:18,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:02:18,135 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 631 transitions. [2024-11-24 02:02:18,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:18,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:18,138 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:18,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 02:02:18,138 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:18,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:18,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1868831367, now seen corresponding path program 1 times [2024-11-24 02:02:18,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:18,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055022969] [2024-11-24 02:02:18,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:18,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:02:23,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:23,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055022969] [2024-11-24 02:02:23,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055022969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:23,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:23,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:02:23,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680885940] [2024-11-24 02:02:23,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:23,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:02:23,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:23,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:02:23,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:02:23,151 INFO L87 Difference]: Start difference. First operand 425 states and 631 transitions. Second operand has 14 states, 10 states have (on average 6.1) internal successors, (61), 14 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-24 02:02:25,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:25,737 INFO L93 Difference]: Finished difference Result 730 states and 1079 transitions. [2024-11-24 02:02:25,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:02:25,738 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 6.1) internal successors, (61), 14 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 6 states have call successors, (19) Word has length 153 [2024-11-24 02:02:25,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:25,741 INFO L225 Difference]: With dead ends: 730 [2024-11-24 02:02:25,741 INFO L226 Difference]: Without dead ends: 485 [2024-11-24 02:02:25,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:02:25,743 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 338 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:25,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 677 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 02:02:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-24 02:02:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 449. [2024-11-24 02:02:25,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 402 states have (on average 1.445273631840796) internal successors, (581), 403 states have internal predecessors, (581), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:02:25,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 665 transitions. [2024-11-24 02:02:25,803 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 665 transitions. Word has length 153 [2024-11-24 02:02:25,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:25,804 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 665 transitions. [2024-11-24 02:02:25,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 6.1) internal successors, (61), 14 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-24 02:02:25,804 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 665 transitions. [2024-11-24 02:02:25,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:25,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:25,806 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:25,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 02:02:25,807 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:25,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:25,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1562524430, now seen corresponding path program 1 times [2024-11-24 02:02:25,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:25,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473773710] [2024-11-24 02:02:25,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:25,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-24 02:02:26,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:26,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473773710] [2024-11-24 02:02:26,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473773710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:02:26,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101714274] [2024-11-24 02:02:26,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:26,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:02:26,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:26,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:02:26,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:02:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:26,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:02:26,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:02:26,438 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:02:26,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101714274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:26,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:02:26,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-24 02:02:26,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032602724] [2024-11-24 02:02:26,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:26,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:02:26,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:26,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:02:26,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:02:26,440 INFO L87 Difference]: Start difference. First operand 449 states and 665 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:02:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:26,517 INFO L93 Difference]: Finished difference Result 721 states and 1067 transitions. [2024-11-24 02:02:26,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:02:26,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-24 02:02:26,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:26,521 INFO L225 Difference]: With dead ends: 721 [2024-11-24 02:02:26,521 INFO L226 Difference]: Without dead ends: 455 [2024-11-24 02:02:26,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:02:26,522 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:26,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 691 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:02:26,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-24 02:02:26,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-24 02:02:26,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 408 states have (on average 1.4387254901960784) internal successors, (587), 409 states have internal predecessors, (587), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:02:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 671 transitions. [2024-11-24 02:02:26,576 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 671 transitions. Word has length 153 [2024-11-24 02:02:26,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:26,577 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 671 transitions. [2024-11-24 02:02:26,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:02:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 671 transitions. [2024-11-24 02:02:26,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:26,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:26,579 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:26,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 02:02:26,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 02:02:26,780 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:26,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:26,780 INFO L85 PathProgramCache]: Analyzing trace with hash 256005859, now seen corresponding path program 1 times [2024-11-24 02:02:26,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:26,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219132875] [2024-11-24 02:02:26,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:26,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:02:27,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:27,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219132875] [2024-11-24 02:02:27,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219132875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:27,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:27,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:02:27,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131031273] [2024-11-24 02:02:27,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:27,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 02:02:27,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:27,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 02:02:27,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:02:27,458 INFO L87 Difference]: Start difference. First operand 455 states and 671 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:02:28,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:28,088 INFO L93 Difference]: Finished difference Result 763 states and 1122 transitions. [2024-11-24 02:02:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:02:28,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-24 02:02:28,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:28,092 INFO L225 Difference]: With dead ends: 763 [2024-11-24 02:02:28,092 INFO L226 Difference]: Without dead ends: 491 [2024-11-24 02:02:28,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:02:28,094 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 354 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:28,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 414 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 02:02:28,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-24 02:02:28,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 391. [2024-11-24 02:02:28,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 344 states have (on average 1.3982558139534884) internal successors, (481), 345 states have internal predecessors, (481), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:02:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 565 transitions. [2024-11-24 02:02:28,155 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 565 transitions. Word has length 153 [2024-11-24 02:02:28,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:28,155 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 565 transitions. [2024-11-24 02:02:28,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:02:28,156 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 565 transitions. [2024-11-24 02:02:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:28,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:28,157 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:28,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 02:02:28,158 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:28,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:28,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2002844873, now seen corresponding path program 1 times [2024-11-24 02:02:28,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:28,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943429150] [2024-11-24 02:02:28,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:28,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:02:36,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:36,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943429150] [2024-11-24 02:02:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943429150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:36,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:36,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 02:02:36,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57619094] [2024-11-24 02:02:36,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:36,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 02:02:36,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:36,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 02:02:36,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:02:36,365 INFO L87 Difference]: Start difference. First operand 391 states and 565 transitions. Second operand has 19 states, 16 states have (on average 3.8125) internal successors, (61), 19 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:02:43,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:43,568 INFO L93 Difference]: Finished difference Result 791 states and 1140 transitions. [2024-11-24 02:02:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:02:43,569 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 3.8125) internal successors, (61), 19 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-11-24 02:02:43,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:43,573 INFO L225 Difference]: With dead ends: 791 [2024-11-24 02:02:43,573 INFO L226 Difference]: Without dead ends: 553 [2024-11-24 02:02:43,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=185, Invalid=937, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 02:02:43,576 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 510 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:43,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1273 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-24 02:02:43,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-24 02:02:43,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 377. [2024-11-24 02:02:43,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 329 states have (on average 1.3860182370820668) internal successors, (456), 330 states have internal predecessors, (456), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:02:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 540 transitions. [2024-11-24 02:02:43,642 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 540 transitions. Word has length 153 [2024-11-24 02:02:43,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:43,642 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 540 transitions. [2024-11-24 02:02:43,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 3.8125) internal successors, (61), 19 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:02:43,643 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 540 transitions. [2024-11-24 02:02:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:43,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:43,644 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:43,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 02:02:43,645 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:43,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:43,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1127987247, now seen corresponding path program 1 times [2024-11-24 02:02:43,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:43,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840385824] [2024-11-24 02:02:43,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:43,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:48,266 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:02:48,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:48,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840385824] [2024-11-24 02:02:48,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840385824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:48,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:48,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:02:48,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296159055] [2024-11-24 02:02:48,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:48,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:02:48,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:48,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:02:48,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:02:48,269 INFO L87 Difference]: Start difference. First operand 377 states and 540 transitions. Second operand has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:02:52,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:52,216 INFO L93 Difference]: Finished difference Result 801 states and 1155 transitions. [2024-11-24 02:02:52,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 02:02:52,217 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-24 02:02:52,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:52,220 INFO L225 Difference]: With dead ends: 801 [2024-11-24 02:02:52,221 INFO L226 Difference]: Without dead ends: 563 [2024-11-24 02:02:52,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=177, Invalid=815, Unknown=0, NotChecked=0, Total=992 [2024-11-24 02:02:52,223 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 540 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:52,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1234 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 02:02:52,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-24 02:02:52,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 400. [2024-11-24 02:02:52,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 352 states have (on average 1.3948863636363635) internal successors, (491), 353 states have internal predecessors, (491), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:02:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 575 transitions. [2024-11-24 02:02:52,297 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 575 transitions. Word has length 153 [2024-11-24 02:02:52,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:52,297 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 575 transitions. [2024-11-24 02:02:52,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:02:52,298 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 575 transitions. [2024-11-24 02:02:52,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:52,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:52,299 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:52,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 02:02:52,300 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:52,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:52,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1714793261, now seen corresponding path program 1 times [2024-11-24 02:02:52,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:52,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266701436] [2024-11-24 02:02:52,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:52,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:02:53,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:53,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266701436] [2024-11-24 02:02:53,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266701436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:53,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:53,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:02:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594838478] [2024-11-24 02:02:53,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:53,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 02:02:53,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:53,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 02:02:53,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:02:54,000 INFO L87 Difference]: Start difference. First operand 400 states and 575 transitions. Second operand has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:02:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:55,144 INFO L93 Difference]: Finished difference Result 638 states and 920 transitions. [2024-11-24 02:02:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:02:55,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-24 02:02:55,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:55,147 INFO L225 Difference]: With dead ends: 638 [2024-11-24 02:02:55,147 INFO L226 Difference]: Without dead ends: 378 [2024-11-24 02:02:55,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:02:55,149 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 141 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:55,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 496 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 02:02:55,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-24 02:02:55,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2024-11-24 02:02:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 329 states have (on average 1.3829787234042554) internal successors, (455), 330 states have internal predecessors, (455), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:02:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 539 transitions. [2024-11-24 02:02:55,213 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 539 transitions. Word has length 153 [2024-11-24 02:02:55,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:55,214 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 539 transitions. [2024-11-24 02:02:55,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:02:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 539 transitions. [2024-11-24 02:02:55,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:02:55,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:55,216 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:55,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 02:02:55,216 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:55,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:55,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1065947633, now seen corresponding path program 1 times [2024-11-24 02:02:55,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:55,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868563877] [2024-11-24 02:02:55,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:55,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:03:00,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:00,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868563877] [2024-11-24 02:03:00,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868563877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:00,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:00,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 02:03:00,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782836231] [2024-11-24 02:03:00,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:00,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 02:03:00,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:00,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 02:03:00,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-24 02:03:00,158 INFO L87 Difference]: Start difference. First operand 377 states and 539 transitions. Second operand has 21 states, 18 states have (on average 3.388888888888889) internal successors, (61), 21 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:03:05,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:05,280 INFO L93 Difference]: Finished difference Result 797 states and 1147 transitions. [2024-11-24 02:03:05,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:03:05,281 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.388888888888889) internal successors, (61), 21 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-11-24 02:03:05,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:05,284 INFO L225 Difference]: With dead ends: 797 [2024-11-24 02:03:05,284 INFO L226 Difference]: Without dead ends: 559 [2024-11-24 02:03:05,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=215, Invalid=1045, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 02:03:05,287 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 668 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:05,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1308 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 2090 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-24 02:03:05,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-24 02:03:05,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 400. [2024-11-24 02:03:05,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 352 states have (on average 1.3892045454545454) internal successors, (489), 353 states have internal predecessors, (489), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:03:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 573 transitions. [2024-11-24 02:03:05,360 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 573 transitions. Word has length 153 [2024-11-24 02:03:05,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:05,361 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 573 transitions. [2024-11-24 02:03:05,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.388888888888889) internal successors, (61), 21 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:03:05,362 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 573 transitions. [2024-11-24 02:03:05,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:03:05,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:05,363 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:05,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 02:03:05,364 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:05,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1652753647, now seen corresponding path program 1 times [2024-11-24 02:03:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:05,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492219221] [2024-11-24 02:03:05,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:05,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:03:10,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:10,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492219221] [2024-11-24 02:03:10,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492219221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:10,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:10,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:03:10,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976285847] [2024-11-24 02:03:10,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:10,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:03:10,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:10,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:03:10,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:03:10,371 INFO L87 Difference]: Start difference. First operand 400 states and 573 transitions. Second operand has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:03:15,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:15,574 INFO L93 Difference]: Finished difference Result 798 states and 1147 transitions. [2024-11-24 02:03:15,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 02:03:15,575 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-24 02:03:15,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:15,579 INFO L225 Difference]: With dead ends: 798 [2024-11-24 02:03:15,582 INFO L226 Difference]: Without dead ends: 560 [2024-11-24 02:03:15,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=167, Invalid=763, Unknown=0, NotChecked=0, Total=930 [2024-11-24 02:03:15,584 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 405 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:15,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1583 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2322 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-24 02:03:15,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-24 02:03:15,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 400. [2024-11-24 02:03:15,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 352 states have (on average 1.3892045454545454) internal successors, (489), 353 states have internal predecessors, (489), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:03:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 573 transitions. [2024-11-24 02:03:15,655 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 573 transitions. Word has length 153 [2024-11-24 02:03:15,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:15,656 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 573 transitions. [2024-11-24 02:03:15,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:03:15,656 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 573 transitions. [2024-11-24 02:03:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:03:15,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:15,659 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:15,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 02:03:15,659 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:15,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:15,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1284802351, now seen corresponding path program 1 times [2024-11-24 02:03:15,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:15,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776802497] [2024-11-24 02:03:15,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:15,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:21,700 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:03:21,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:21,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776802497] [2024-11-24 02:03:21,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776802497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:21,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:21,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 02:03:21,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701671514] [2024-11-24 02:03:21,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:21,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:03:21,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:21,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:03:21,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:03:21,708 INFO L87 Difference]: Start difference. First operand 400 states and 573 transitions. Second operand has 15 states, 12 states have (on average 5.083333333333333) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:03:24,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:24,909 INFO L93 Difference]: Finished difference Result 699 states and 1005 transitions. [2024-11-24 02:03:24,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:03:24,910 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.083333333333333) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-11-24 02:03:24,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:24,912 INFO L225 Difference]: With dead ends: 699 [2024-11-24 02:03:24,913 INFO L226 Difference]: Without dead ends: 461 [2024-11-24 02:03:24,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-24 02:03:24,914 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 509 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:24,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 860 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 02:03:24,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-24 02:03:25,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 420. [2024-11-24 02:03:25,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 372 states have (on average 1.3978494623655915) internal successors, (520), 373 states have internal predecessors, (520), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:03:25,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 604 transitions. [2024-11-24 02:03:25,015 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 604 transitions. Word has length 153 [2024-11-24 02:03:25,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:25,016 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 604 transitions. [2024-11-24 02:03:25,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.083333333333333) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:03:25,016 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 604 transitions. [2024-11-24 02:03:25,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:03:25,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:25,018 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:25,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 02:03:25,018 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:25,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:25,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1871608365, now seen corresponding path program 1 times [2024-11-24 02:03:25,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:25,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615679203] [2024-11-24 02:03:25,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:25,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:29,830 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:03:29,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:29,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615679203] [2024-11-24 02:03:29,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615679203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:29,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:29,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 02:03:29,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699711052] [2024-11-24 02:03:29,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:29,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 02:03:29,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:29,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 02:03:29,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:03:29,833 INFO L87 Difference]: Start difference. First operand 420 states and 604 transitions. Second operand has 20 states, 17 states have (on average 3.588235294117647) internal successors, (61), 20 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:03:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:35,037 INFO L93 Difference]: Finished difference Result 842 states and 1214 transitions. [2024-11-24 02:03:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 02:03:35,038 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 3.588235294117647) internal successors, (61), 20 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-11-24 02:03:35,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:35,041 INFO L225 Difference]: With dead ends: 842 [2024-11-24 02:03:35,041 INFO L226 Difference]: Without dead ends: 583 [2024-11-24 02:03:35,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 02:03:35,043 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 456 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:35,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1559 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-24 02:03:35,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-24 02:03:35,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 420. [2024-11-24 02:03:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 372 states have (on average 1.3978494623655915) internal successors, (520), 373 states have internal predecessors, (520), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:03:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 604 transitions. [2024-11-24 02:03:35,117 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 604 transitions. Word has length 153 [2024-11-24 02:03:35,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:35,117 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 604 transitions. [2024-11-24 02:03:35,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 3.588235294117647) internal successors, (61), 20 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:03:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 604 transitions. [2024-11-24 02:03:35,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:03:35,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:35,119 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:35,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 02:03:35,120 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:35,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:35,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1359358277, now seen corresponding path program 1 times [2024-11-24 02:03:35,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:35,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122792184] [2024-11-24 02:03:35,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:35,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:40,275 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:03:40,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:40,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122792184] [2024-11-24 02:03:40,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122792184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:40,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:40,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:03:40,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588520635] [2024-11-24 02:03:40,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:40,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:03:40,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:40,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:03:40,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:03:40,278 INFO L87 Difference]: Start difference. First operand 420 states and 604 transitions. Second operand has 16 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 16 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:03:44,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:44,221 INFO L93 Difference]: Finished difference Result 974 states and 1404 transitions. [2024-11-24 02:03:44,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:03:44,221 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 16 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-11-24 02:03:44,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:44,224 INFO L225 Difference]: With dead ends: 974 [2024-11-24 02:03:44,224 INFO L226 Difference]: Without dead ends: 715 [2024-11-24 02:03:44,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=151, Invalid=661, Unknown=0, NotChecked=0, Total=812 [2024-11-24 02:03:44,226 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 486 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:44,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1205 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-24 02:03:44,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-24 02:03:44,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 438. [2024-11-24 02:03:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 390 states have (on average 1.405128205128205) internal successors, (548), 391 states have internal predecessors, (548), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:03:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 632 transitions. [2024-11-24 02:03:44,301 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 632 transitions. Word has length 153 [2024-11-24 02:03:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:44,301 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 632 transitions. [2024-11-24 02:03:44,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 16 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:03:44,302 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 632 transitions. [2024-11-24 02:03:44,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:03:44,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:44,303 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:44,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 02:03:44,304 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:44,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:44,304 INFO L85 PathProgramCache]: Analyzing trace with hash 79494599, now seen corresponding path program 1 times [2024-11-24 02:03:44,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:44,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543653127] [2024-11-24 02:03:44,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:44,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:03:45,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:45,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543653127] [2024-11-24 02:03:45,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543653127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:45,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:45,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:03:45,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700609837] [2024-11-24 02:03:45,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:45,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:03:45,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:45,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:03:45,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:03:45,768 INFO L87 Difference]: Start difference. First operand 438 states and 632 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:03:46,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:46,833 INFO L93 Difference]: Finished difference Result 741 states and 1068 transitions. [2024-11-24 02:03:46,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:03:46,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-24 02:03:46,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:46,836 INFO L225 Difference]: With dead ends: 741 [2024-11-24 02:03:46,837 INFO L226 Difference]: Without dead ends: 482 [2024-11-24 02:03:46,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:03:46,838 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 348 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:46,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 457 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 02:03:46,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-24 02:03:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 442. [2024-11-24 02:03:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 394 states have (on average 1.4060913705583757) internal successors, (554), 395 states have internal predecessors, (554), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:03:46,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 638 transitions. [2024-11-24 02:03:46,909 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 638 transitions. Word has length 153 [2024-11-24 02:03:46,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:46,910 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 638 transitions. [2024-11-24 02:03:46,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:03:46,910 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 638 transitions. [2024-11-24 02:03:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:03:46,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:46,912 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:46,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 02:03:46,913 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:46,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:46,913 INFO L85 PathProgramCache]: Analyzing trace with hash -507311415, now seen corresponding path program 1 times [2024-11-24 02:03:46,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:46,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299055073] [2024-11-24 02:03:46,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:46,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:03:50,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:50,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299055073] [2024-11-24 02:03:50,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299055073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:50,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:50,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 02:03:50,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199816139] [2024-11-24 02:03:50,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:50,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 02:03:50,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:50,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 02:03:50,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:03:50,698 INFO L87 Difference]: Start difference. First operand 442 states and 638 transitions. Second operand has 19 states, 17 states have (on average 3.588235294117647) internal successors, (61), 19 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:03:55,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:55,545 INFO L93 Difference]: Finished difference Result 848 states and 1222 transitions. [2024-11-24 02:03:55,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 02:03:55,546 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.588235294117647) internal successors, (61), 19 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-24 02:03:55,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:55,548 INFO L225 Difference]: With dead ends: 848 [2024-11-24 02:03:55,548 INFO L226 Difference]: Without dead ends: 587 [2024-11-24 02:03:55,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=186, Invalid=870, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 02:03:55,549 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 415 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:55,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1494 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-24 02:03:55,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-24 02:03:55,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 442. [2024-11-24 02:03:55,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 394 states have (on average 1.4060913705583757) internal successors, (554), 395 states have internal predecessors, (554), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:03:55,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 638 transitions. [2024-11-24 02:03:55,624 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 638 transitions. Word has length 153 [2024-11-24 02:03:55,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:55,625 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 638 transitions. [2024-11-24 02:03:55,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.588235294117647) internal successors, (61), 19 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:03:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 638 transitions. [2024-11-24 02:03:55,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:03:55,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:55,627 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:55,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 02:03:55,627 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:55,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:55,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1493371783, now seen corresponding path program 1 times [2024-11-24 02:03:55,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:55,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311212470] [2024-11-24 02:03:55,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:55,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:03:59,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:59,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311212470] [2024-11-24 02:03:59,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311212470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:59,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:59,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 02:03:59,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632633549] [2024-11-24 02:03:59,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:59,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:03:59,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:59,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:03:59,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:03:59,354 INFO L87 Difference]: Start difference. First operand 442 states and 638 transitions. Second operand has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:04:02,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:02,501 INFO L93 Difference]: Finished difference Result 854 states and 1228 transitions. [2024-11-24 02:04:02,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:04:02,501 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-24 02:04:02,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:02,504 INFO L225 Difference]: With dead ends: 854 [2024-11-24 02:04:02,504 INFO L226 Difference]: Without dead ends: 588 [2024-11-24 02:04:02,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2024-11-24 02:04:02,506 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 416 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:02,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1050 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 02:04:02,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-24 02:04:02,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 441. [2024-11-24 02:04:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 393 states have (on average 1.3994910941475827) internal successors, (550), 394 states have internal predecessors, (550), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:04:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 634 transitions. [2024-11-24 02:04:02,572 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 634 transitions. Word has length 153 [2024-11-24 02:04:02,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:02,573 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 634 transitions. [2024-11-24 02:04:02,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:04:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 634 transitions. [2024-11-24 02:04:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 02:04:02,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:02,575 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:02,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 02:04:02,575 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:02,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:02,575 INFO L85 PathProgramCache]: Analyzing trace with hash -373297909, now seen corresponding path program 1 times [2024-11-24 02:04:02,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:02,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131297178] [2024-11-24 02:04:02,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:02,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:06,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:06,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131297178] [2024-11-24 02:04:06,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131297178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:06,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:06,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:04:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653541296] [2024-11-24 02:04:06,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:06,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:04:06,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:06,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:04:06,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:04:06,740 INFO L87 Difference]: Start difference. First operand 441 states and 634 transitions. Second operand has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:04:10,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:10,770 INFO L93 Difference]: Finished difference Result 844 states and 1214 transitions. [2024-11-24 02:04:10,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:04:10,770 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-24 02:04:10,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:10,772 INFO L225 Difference]: With dead ends: 844 [2024-11-24 02:04:10,772 INFO L226 Difference]: Without dead ends: 583 [2024-11-24 02:04:10,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2024-11-24 02:04:10,773 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 600 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:10,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1321 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 02:04:10,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-24 02:04:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 423. [2024-11-24 02:04:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 375 states have (on average 1.392) internal successors, (522), 376 states have internal predecessors, (522), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:04:10,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 606 transitions. [2024-11-24 02:04:10,827 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 606 transitions. Word has length 153 [2024-11-24 02:04:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:10,827 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 606 transitions. [2024-11-24 02:04:10,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:04:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 606 transitions. [2024-11-24 02:04:10,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 02:04:10,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:10,829 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:10,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 02:04:10,829 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:10,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:10,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1734030530, now seen corresponding path program 1 times [2024-11-24 02:04:10,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:10,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46858284] [2024-11-24 02:04:10,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:10,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:12,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:12,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46858284] [2024-11-24 02:04:12,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46858284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:12,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:12,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:04:12,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198130218] [2024-11-24 02:04:12,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:12,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:04:12,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:12,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:04:12,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:04:12,016 INFO L87 Difference]: Start difference. First operand 423 states and 606 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:04:14,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:14,065 INFO L93 Difference]: Finished difference Result 952 states and 1365 transitions. [2024-11-24 02:04:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:04:14,065 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-24 02:04:14,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:14,067 INFO L225 Difference]: With dead ends: 952 [2024-11-24 02:04:14,067 INFO L226 Difference]: Without dead ends: 691 [2024-11-24 02:04:14,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:04:14,068 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 569 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:14,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1251 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 02:04:14,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-24 02:04:14,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 455. [2024-11-24 02:04:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 407 states have (on average 1.4152334152334152) internal successors, (576), 408 states have internal predecessors, (576), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:04:14,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 660 transitions. [2024-11-24 02:04:14,133 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 660 transitions. Word has length 154 [2024-11-24 02:04:14,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:14,134 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 660 transitions. [2024-11-24 02:04:14,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:04:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 660 transitions. [2024-11-24 02:04:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 02:04:14,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:14,136 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:14,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 02:04:14,136 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:14,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:14,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1593481920, now seen corresponding path program 1 times [2024-11-24 02:04:14,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:14,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137714857] [2024-11-24 02:04:14,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:14,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:15,413 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:15,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:15,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137714857] [2024-11-24 02:04:15,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137714857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:15,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:15,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:04:15,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879832047] [2024-11-24 02:04:15,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:15,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:04:15,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:15,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:04:15,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:04:15,416 INFO L87 Difference]: Start difference. First operand 455 states and 660 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:04:16,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:16,796 INFO L93 Difference]: Finished difference Result 977 states and 1406 transitions. [2024-11-24 02:04:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:04:16,798 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-24 02:04:16,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:16,801 INFO L225 Difference]: With dead ends: 977 [2024-11-24 02:04:16,801 INFO L226 Difference]: Without dead ends: 716 [2024-11-24 02:04:16,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:04:16,803 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 230 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:16,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 839 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 02:04:16,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-24 02:04:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 502. [2024-11-24 02:04:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 454 states have (on average 1.4273127753303965) internal successors, (648), 455 states have internal predecessors, (648), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:04:16,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 732 transitions. [2024-11-24 02:04:16,882 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 732 transitions. Word has length 154 [2024-11-24 02:04:16,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:16,883 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 732 transitions. [2024-11-24 02:04:16,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:04:16,883 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 732 transitions. [2024-11-24 02:04:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:04:16,884 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:16,885 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:16,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 02:04:16,885 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:16,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:16,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1902565229, now seen corresponding path program 1 times [2024-11-24 02:04:16,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:16,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005054174] [2024-11-24 02:04:16,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:16,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:20,186 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:20,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:20,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005054174] [2024-11-24 02:04:20,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005054174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:20,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:20,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:04:20,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490666638] [2024-11-24 02:04:20,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:20,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:04:20,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:20,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:04:20,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:04:20,188 INFO L87 Difference]: Start difference. First operand 502 states and 732 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:04:23,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:23,183 INFO L93 Difference]: Finished difference Result 837 states and 1215 transitions. [2024-11-24 02:04:23,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:04:23,184 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-24 02:04:23,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:23,186 INFO L225 Difference]: With dead ends: 837 [2024-11-24 02:04:23,186 INFO L226 Difference]: Without dead ends: 576 [2024-11-24 02:04:23,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2024-11-24 02:04:23,187 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 331 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:23,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 1174 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 02:04:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-24 02:04:23,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 533. [2024-11-24 02:04:23,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 485 states have (on average 1.4309278350515464) internal successors, (694), 486 states have internal predecessors, (694), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 02:04:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 778 transitions. [2024-11-24 02:04:23,236 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 778 transitions. Word has length 155 [2024-11-24 02:04:23,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:23,236 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 778 transitions. [2024-11-24 02:04:23,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:04:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 778 transitions. [2024-11-24 02:04:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:04:23,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:23,238 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:23,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 02:04:23,238 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:23,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:23,238 INFO L85 PathProgramCache]: Analyzing trace with hash -2134236629, now seen corresponding path program 1 times [2024-11-24 02:04:23,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:23,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048638972] [2024-11-24 02:04:23,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:23,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:25,544 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:25,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:25,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048638972] [2024-11-24 02:04:25,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048638972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:25,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:25,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 02:04:25,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066955508] [2024-11-24 02:04:25,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:25,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 02:04:25,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:25,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 02:04:25,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-24 02:04:25,547 INFO L87 Difference]: Start difference. First operand 533 states and 778 transitions. Second operand has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 13 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:04:27,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:27,639 INFO L93 Difference]: Finished difference Result 902 states and 1309 transitions. [2024-11-24 02:04:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:04:27,640 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 13 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-24 02:04:27,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:27,641 INFO L225 Difference]: With dead ends: 902 [2024-11-24 02:04:27,641 INFO L226 Difference]: Without dead ends: 613 [2024-11-24 02:04:27,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:04:27,642 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 356 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:27,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 769 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 02:04:27,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-24 02:04:27,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 610. [2024-11-24 02:04:27,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 555 states have (on average 1.4216216216216215) internal successors, (789), 557 states have internal predecessors, (789), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:04:27,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 885 transitions. [2024-11-24 02:04:27,718 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 885 transitions. Word has length 155 [2024-11-24 02:04:27,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:27,718 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 885 transitions. [2024-11-24 02:04:27,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 13 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:04:27,718 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 885 transitions. [2024-11-24 02:04:27,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:04:27,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:27,719 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:27,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 02:04:27,719 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:27,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:27,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1381284817, now seen corresponding path program 1 times [2024-11-24 02:04:27,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:27,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599077867] [2024-11-24 02:04:27,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:27,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:29,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:29,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599077867] [2024-11-24 02:04:29,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599077867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:29,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:29,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:04:29,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946129715] [2024-11-24 02:04:29,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:29,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:04:29,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:29,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:04:29,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:04:29,587 INFO L87 Difference]: Start difference. First operand 610 states and 885 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:04:30,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:30,751 INFO L93 Difference]: Finished difference Result 1064 states and 1538 transitions. [2024-11-24 02:04:30,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:04:30,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-24 02:04:30,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:30,754 INFO L225 Difference]: With dead ends: 1064 [2024-11-24 02:04:30,754 INFO L226 Difference]: Without dead ends: 703 [2024-11-24 02:04:30,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:04:30,755 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 219 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:30,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 604 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 02:04:30,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2024-11-24 02:04:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 634. [2024-11-24 02:04:30,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 579 states have (on average 1.4214162348877375) internal successors, (823), 581 states have internal predecessors, (823), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:04:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 919 transitions. [2024-11-24 02:04:30,834 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 919 transitions. Word has length 155 [2024-11-24 02:04:30,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:30,834 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 919 transitions. [2024-11-24 02:04:30,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:04:30,835 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 919 transitions. [2024-11-24 02:04:30,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:04:30,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:30,836 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:30,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 02:04:30,836 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:30,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2036578735, now seen corresponding path program 1 times [2024-11-24 02:04:30,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:30,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283174593] [2024-11-24 02:04:30,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:30,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:34,335 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:34,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:34,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283174593] [2024-11-24 02:04:34,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283174593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:34,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:34,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:04:34,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82850066] [2024-11-24 02:04:34,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:34,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:04:34,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:34,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:04:34,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:04:34,336 INFO L87 Difference]: Start difference. First operand 634 states and 919 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:04:37,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:37,640 INFO L93 Difference]: Finished difference Result 1122 states and 1623 transitions. [2024-11-24 02:04:37,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:04:37,640 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-24 02:04:37,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:37,643 INFO L225 Difference]: With dead ends: 1122 [2024-11-24 02:04:37,643 INFO L226 Difference]: Without dead ends: 740 [2024-11-24 02:04:37,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=137, Invalid=733, Unknown=0, NotChecked=0, Total=870 [2024-11-24 02:04:37,645 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 262 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:37,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 1220 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 02:04:37,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-24 02:04:37,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 668. [2024-11-24 02:04:37,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 613 states have (on average 1.429037520391517) internal successors, (876), 615 states have internal predecessors, (876), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:04:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 972 transitions. [2024-11-24 02:04:37,773 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 972 transitions. Word has length 155 [2024-11-24 02:04:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:37,773 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 972 transitions. [2024-11-24 02:04:37,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:04:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 972 transitions. [2024-11-24 02:04:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:04:37,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:37,775 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:37,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 02:04:37,775 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:37,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2000223123, now seen corresponding path program 1 times [2024-11-24 02:04:37,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:37,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111928972] [2024-11-24 02:04:37,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:37,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:40,651 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:40,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:40,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111928972] [2024-11-24 02:04:40,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111928972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:40,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:40,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:04:40,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452660682] [2024-11-24 02:04:40,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:40,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:04:40,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:40,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:04:40,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:04:40,653 INFO L87 Difference]: Start difference. First operand 668 states and 972 transitions. Second operand has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:04:43,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:43,204 INFO L93 Difference]: Finished difference Result 1160 states and 1681 transitions. [2024-11-24 02:04:43,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:04:43,205 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 155 [2024-11-24 02:04:43,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:43,208 INFO L225 Difference]: With dead ends: 1160 [2024-11-24 02:04:43,208 INFO L226 Difference]: Without dead ends: 755 [2024-11-24 02:04:43,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:04:43,210 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 464 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:43,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 706 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 02:04:43,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-24 02:04:43,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 678. [2024-11-24 02:04:43,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 623 states have (on average 1.43338683788122) internal successors, (893), 625 states have internal predecessors, (893), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:04:43,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 989 transitions. [2024-11-24 02:04:43,271 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 989 transitions. Word has length 155 [2024-11-24 02:04:43,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:43,272 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 989 transitions. [2024-11-24 02:04:43,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:04:43,272 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 989 transitions. [2024-11-24 02:04:43,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:04:43,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:43,273 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:43,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 02:04:43,273 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:43,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:43,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1247271311, now seen corresponding path program 1 times [2024-11-24 02:04:43,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:43,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585402467] [2024-11-24 02:04:43,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:43,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:45,888 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:45,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:45,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585402467] [2024-11-24 02:04:45,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585402467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:45,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:45,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:04:45,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161617112] [2024-11-24 02:04:45,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:45,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:04:45,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:45,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:04:45,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:04:45,890 INFO L87 Difference]: Start difference. First operand 678 states and 989 transitions. Second operand has 11 states, 10 states have (on average 6.3) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:04:47,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:47,191 INFO L93 Difference]: Finished difference Result 1178 states and 1713 transitions. [2024-11-24 02:04:47,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:04:47,192 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-24 02:04:47,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:47,195 INFO L225 Difference]: With dead ends: 1178 [2024-11-24 02:04:47,196 INFO L226 Difference]: Without dead ends: 778 [2024-11-24 02:04:47,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:04:47,197 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 536 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:47,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 532 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 02:04:47,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-24 02:04:47,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 673. [2024-11-24 02:04:47,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 618 states have (on average 1.4336569579288025) internal successors, (886), 620 states have internal predecessors, (886), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:04:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 982 transitions. [2024-11-24 02:04:47,303 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 982 transitions. Word has length 155 [2024-11-24 02:04:47,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:47,304 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 982 transitions. [2024-11-24 02:04:47,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:04:47,304 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 982 transitions. [2024-11-24 02:04:47,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:04:47,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:47,306 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:47,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 02:04:47,306 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:47,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:47,307 INFO L85 PathProgramCache]: Analyzing trace with hash -469174033, now seen corresponding path program 1 times [2024-11-24 02:04:47,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:47,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908084465] [2024-11-24 02:04:47,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:47,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:49,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:49,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908084465] [2024-11-24 02:04:49,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908084465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:49,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:49,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 02:04:49,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119474204] [2024-11-24 02:04:49,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:49,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 02:04:49,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:49,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 02:04:49,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-24 02:04:49,431 INFO L87 Difference]: Start difference. First operand 673 states and 982 transitions. Second operand has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:04:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:50,980 INFO L93 Difference]: Finished difference Result 1149 states and 1664 transitions. [2024-11-24 02:04:50,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:04:50,981 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 155 [2024-11-24 02:04:50,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:50,985 INFO L225 Difference]: With dead ends: 1149 [2024-11-24 02:04:50,985 INFO L226 Difference]: Without dead ends: 767 [2024-11-24 02:04:50,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:04:50,987 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 320 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:50,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 693 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 02:04:50,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-24 02:04:51,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 715. [2024-11-24 02:04:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 659 states have (on average 1.4355083459787557) internal successors, (946), 661 states have internal predecessors, (946), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:04:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1042 transitions. [2024-11-24 02:04:51,076 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1042 transitions. Word has length 155 [2024-11-24 02:04:51,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:51,077 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 1042 transitions. [2024-11-24 02:04:51,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:04:51,077 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1042 transitions. [2024-11-24 02:04:51,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:04:51,078 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:51,078 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:51,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 02:04:51,078 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:51,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:51,079 INFO L85 PathProgramCache]: Analyzing trace with hash -211008595, now seen corresponding path program 1 times [2024-11-24 02:04:51,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:04:51,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463874645] [2024-11-24 02:04:51,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:51,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:04:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:04:55,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:04:55,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463874645] [2024-11-24 02:04:55,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463874645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:55,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:55,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 02:04:55,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772851124] [2024-11-24 02:04:55,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:55,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 02:04:55,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:04:55,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 02:04:55,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:04:55,373 INFO L87 Difference]: Start difference. First operand 715 states and 1042 transitions. Second operand has 20 states, 18 states have (on average 3.5) internal successors, (63), 20 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:00,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:00,593 INFO L93 Difference]: Finished difference Result 1173 states and 1701 transitions. [2024-11-24 02:05:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:05:00,594 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.5) internal successors, (63), 20 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-24 02:05:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:00,598 INFO L225 Difference]: With dead ends: 1173 [2024-11-24 02:05:00,598 INFO L226 Difference]: Without dead ends: 753 [2024-11-24 02:05:00,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 02:05:00,600 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 224 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 2434 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:00,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1749 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2434 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 02:05:00,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-24 02:05:00,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 717. [2024-11-24 02:05:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 661 states have (on average 1.4341906202723147) internal successors, (948), 663 states have internal predecessors, (948), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1044 transitions. [2024-11-24 02:05:00,677 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1044 transitions. Word has length 155 [2024-11-24 02:05:00,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:00,678 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 1044 transitions. [2024-11-24 02:05:00,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.5) internal successors, (63), 20 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:00,678 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1044 transitions. [2024-11-24 02:05:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:00,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:00,680 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:00,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 02:05:00,680 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:00,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:00,680 INFO L85 PathProgramCache]: Analyzing trace with hash -335160527, now seen corresponding path program 1 times [2024-11-24 02:05:00,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:00,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621415761] [2024-11-24 02:05:00,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:00,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:03,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:03,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621415761] [2024-11-24 02:05:03,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621415761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:03,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:03,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 02:05:03,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886918061] [2024-11-24 02:05:03,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:03,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 02:05:03,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:03,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 02:05:03,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:05:03,330 INFO L87 Difference]: Start difference. First operand 717 states and 1044 transitions. Second operand has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:05,147 INFO L93 Difference]: Finished difference Result 1248 states and 1802 transitions. [2024-11-24 02:05:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:05:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-24 02:05:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:05,152 INFO L225 Difference]: With dead ends: 1248 [2024-11-24 02:05:05,152 INFO L226 Difference]: Without dead ends: 826 [2024-11-24 02:05:05,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:05:05,153 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 321 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:05,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 687 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 02:05:05,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-24 02:05:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 702. [2024-11-24 02:05:05,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 646 states have (on average 1.4303405572755419) internal successors, (924), 648 states have internal predecessors, (924), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1020 transitions. [2024-11-24 02:05:05,251 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1020 transitions. Word has length 155 [2024-11-24 02:05:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:05,252 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1020 transitions. [2024-11-24 02:05:05,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1020 transitions. [2024-11-24 02:05:05,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:05,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:05,253 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:05,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 02:05:05,254 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:05,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:05,254 INFO L85 PathProgramCache]: Analyzing trace with hash -76995089, now seen corresponding path program 1 times [2024-11-24 02:05:05,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:05,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656338585] [2024-11-24 02:05:05,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:05,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:08,644 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:08,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:08,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656338585] [2024-11-24 02:05:08,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656338585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:08,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:08,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 02:05:08,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314810315] [2024-11-24 02:05:08,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:08,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 02:05:08,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:08,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 02:05:08,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:05:08,646 INFO L87 Difference]: Start difference. First operand 702 states and 1020 transitions. Second operand has 19 states, 18 states have (on average 3.5) internal successors, (63), 19 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:12,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:12,093 INFO L93 Difference]: Finished difference Result 1150 states and 1660 transitions. [2024-11-24 02:05:12,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 02:05:12,094 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 19 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-24 02:05:12,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:12,098 INFO L225 Difference]: With dead ends: 1150 [2024-11-24 02:05:12,098 INFO L226 Difference]: Without dead ends: 743 [2024-11-24 02:05:12,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2024-11-24 02:05:12,099 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 278 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:12,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 1375 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-24 02:05:12,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-24 02:05:12,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 684. [2024-11-24 02:05:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 628 states have (on average 1.428343949044586) internal successors, (897), 630 states have internal predecessors, (897), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 993 transitions. [2024-11-24 02:05:12,205 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 993 transitions. Word has length 155 [2024-11-24 02:05:12,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:12,206 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 993 transitions. [2024-11-24 02:05:12,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 19 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:12,206 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 993 transitions. [2024-11-24 02:05:12,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:12,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:12,207 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:12,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 02:05:12,207 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:12,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:12,208 INFO L85 PathProgramCache]: Analyzing trace with hash 516361835, now seen corresponding path program 1 times [2024-11-24 02:05:12,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:12,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204636530] [2024-11-24 02:05:12,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:12,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:14,004 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:14,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:14,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204636530] [2024-11-24 02:05:14,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204636530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:14,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:14,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:05:14,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224585917] [2024-11-24 02:05:14,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:14,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:05:14,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:14,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:05:14,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:05:14,006 INFO L87 Difference]: Start difference. First operand 684 states and 993 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:05:15,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:15,398 INFO L93 Difference]: Finished difference Result 1149 states and 1661 transitions. [2024-11-24 02:05:15,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:05:15,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-24 02:05:15,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:15,401 INFO L225 Difference]: With dead ends: 1149 [2024-11-24 02:05:15,401 INFO L226 Difference]: Without dead ends: 760 [2024-11-24 02:05:15,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:05:15,402 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 342 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:15,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 560 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 02:05:15,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-11-24 02:05:15,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 720. [2024-11-24 02:05:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 664 states have (on average 1.4322289156626506) internal successors, (951), 666 states have internal predecessors, (951), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:15,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1047 transitions. [2024-11-24 02:05:15,498 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1047 transitions. Word has length 155 [2024-11-24 02:05:15,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:15,498 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1047 transitions. [2024-11-24 02:05:15,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:05:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1047 transitions. [2024-11-24 02:05:15,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:15,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:15,500 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:15,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 02:05:15,500 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:15,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:15,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1527479085, now seen corresponding path program 1 times [2024-11-24 02:05:15,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:15,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024377074] [2024-11-24 02:05:15,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:15,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:20,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:20,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024377074] [2024-11-24 02:05:20,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024377074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:20,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:20,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-24 02:05:20,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815156976] [2024-11-24 02:05:20,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:20,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 02:05:20,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:20,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 02:05:20,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2024-11-24 02:05:20,255 INFO L87 Difference]: Start difference. First operand 720 states and 1047 transitions. Second operand has 22 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 22 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:05:26,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:26,269 INFO L93 Difference]: Finished difference Result 1183 states and 1711 transitions. [2024-11-24 02:05:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:05:26,270 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 22 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 155 [2024-11-24 02:05:26,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:26,274 INFO L225 Difference]: With dead ends: 1183 [2024-11-24 02:05:26,274 INFO L226 Difference]: Without dead ends: 758 [2024-11-24 02:05:26,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 02:05:26,276 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 336 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 2635 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:26,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1792 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2635 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 02:05:26,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-24 02:05:26,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 720. [2024-11-24 02:05:26,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 664 states have (on average 1.4322289156626506) internal successors, (951), 666 states have internal predecessors, (951), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:26,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1047 transitions. [2024-11-24 02:05:26,371 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1047 transitions. Word has length 155 [2024-11-24 02:05:26,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:26,371 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1047 transitions. [2024-11-24 02:05:26,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 22 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:05:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1047 transitions. [2024-11-24 02:05:26,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:26,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:26,372 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:26,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-24 02:05:26,373 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:26,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:26,373 INFO L85 PathProgramCache]: Analyzing trace with hash 650375341, now seen corresponding path program 1 times [2024-11-24 02:05:26,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:26,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490938494] [2024-11-24 02:05:26,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:26,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:29,286 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:29,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:29,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490938494] [2024-11-24 02:05:29,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490938494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:29,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:29,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:05:29,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087903413] [2024-11-24 02:05:29,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:29,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:05:29,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:29,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:05:29,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:05:29,288 INFO L87 Difference]: Start difference. First operand 720 states and 1047 transitions. Second operand has 11 states, 10 states have (on average 6.3) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:05:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:30,913 INFO L93 Difference]: Finished difference Result 1183 states and 1710 transitions. [2024-11-24 02:05:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:05:30,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-24 02:05:30,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:30,917 INFO L225 Difference]: With dead ends: 1183 [2024-11-24 02:05:30,917 INFO L226 Difference]: Without dead ends: 758 [2024-11-24 02:05:30,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:05:30,919 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 441 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:30,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 560 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 02:05:30,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-24 02:05:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 702. [2024-11-24 02:05:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 646 states have (on average 1.4272445820433437) internal successors, (922), 648 states have internal predecessors, (922), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1018 transitions. [2024-11-24 02:05:31,032 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1018 transitions. Word has length 155 [2024-11-24 02:05:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:31,032 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1018 transitions. [2024-11-24 02:05:31,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:05:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1018 transitions. [2024-11-24 02:05:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:31,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:31,034 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:31,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-24 02:05:31,035 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:31,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:31,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1661492591, now seen corresponding path program 1 times [2024-11-24 02:05:31,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:31,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982631877] [2024-11-24 02:05:31,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:31,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:34,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:34,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982631877] [2024-11-24 02:05:34,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982631877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:34,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:34,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 02:05:34,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207950029] [2024-11-24 02:05:34,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:34,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 02:05:34,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:34,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 02:05:34,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:05:34,617 INFO L87 Difference]: Start difference. First operand 702 states and 1018 transitions. Second operand has 19 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 19 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:38,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:38,174 INFO L93 Difference]: Finished difference Result 1150 states and 1656 transitions. [2024-11-24 02:05:38,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:05:38,175 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 19 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-24 02:05:38,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:38,179 INFO L225 Difference]: With dead ends: 1150 [2024-11-24 02:05:38,179 INFO L226 Difference]: Without dead ends: 743 [2024-11-24 02:05:38,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2024-11-24 02:05:38,181 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 334 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:38,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1418 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 02:05:38,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-24 02:05:38,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 682. [2024-11-24 02:05:38,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 626 states have (on average 1.426517571884984) internal successors, (893), 628 states have internal predecessors, (893), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 989 transitions. [2024-11-24 02:05:38,270 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 989 transitions. Word has length 155 [2024-11-24 02:05:38,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:38,270 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 989 transitions. [2024-11-24 02:05:38,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 19 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 989 transitions. [2024-11-24 02:05:38,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:38,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:38,271 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:38,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-24 02:05:38,272 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:38,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash -586094739, now seen corresponding path program 1 times [2024-11-24 02:05:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:38,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253542309] [2024-11-24 02:05:38,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:38,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:42,328 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:42,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:42,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253542309] [2024-11-24 02:05:42,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253542309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:42,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:42,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 02:05:42,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896582731] [2024-11-24 02:05:42,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:42,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 02:05:42,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:42,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 02:05:42,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-24 02:05:42,331 INFO L87 Difference]: Start difference. First operand 682 states and 989 transitions. Second operand has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:05:46,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:46,977 INFO L93 Difference]: Finished difference Result 1125 states and 1622 transitions. [2024-11-24 02:05:46,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 02:05:46,977 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 155 [2024-11-24 02:05:46,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:46,981 INFO L225 Difference]: With dead ends: 1125 [2024-11-24 02:05:46,981 INFO L226 Difference]: Without dead ends: 738 [2024-11-24 02:05:46,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=155, Invalid=1035, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 02:05:46,982 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 275 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:46,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1766 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 02:05:46,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-24 02:05:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 700. [2024-11-24 02:05:47,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 644 states have (on average 1.4285714285714286) internal successors, (920), 646 states have internal predecessors, (920), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1016 transitions. [2024-11-24 02:05:47,047 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1016 transitions. Word has length 155 [2024-11-24 02:05:47,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:47,047 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1016 transitions. [2024-11-24 02:05:47,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:05:47,047 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1016 transitions. [2024-11-24 02:05:47,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:47,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:47,049 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:47,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-24 02:05:47,049 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:47,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:47,049 INFO L85 PathProgramCache]: Analyzing trace with hash -452081233, now seen corresponding path program 1 times [2024-11-24 02:05:47,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:47,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214616493] [2024-11-24 02:05:47,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:47,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:50,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:50,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214616493] [2024-11-24 02:05:50,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214616493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:50,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:50,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 02:05:50,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529700209] [2024-11-24 02:05:50,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:50,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 02:05:50,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:50,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 02:05:50,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:05:50,138 INFO L87 Difference]: Start difference. First operand 700 states and 1016 transitions. Second operand has 19 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 19 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:53,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:53,668 INFO L93 Difference]: Finished difference Result 1143 states and 1648 transitions. [2024-11-24 02:05:53,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:05:53,668 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 19 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-24 02:05:53,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:53,672 INFO L225 Difference]: With dead ends: 1143 [2024-11-24 02:05:53,672 INFO L226 Difference]: Without dead ends: 738 [2024-11-24 02:05:53,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2024-11-24 02:05:53,674 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 206 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:53,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1462 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 02:05:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-24 02:05:53,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 677. [2024-11-24 02:05:53,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 621 states have (on average 1.428341384863124) internal successors, (887), 623 states have internal predecessors, (887), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:53,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 983 transitions. [2024-11-24 02:05:53,734 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 983 transitions. Word has length 155 [2024-11-24 02:05:53,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:53,735 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 983 transitions. [2024-11-24 02:05:53,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 19 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:05:53,735 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 983 transitions. [2024-11-24 02:05:53,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:53,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:53,736 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:53,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-24 02:05:53,737 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:53,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:53,737 INFO L85 PathProgramCache]: Analyzing trace with hash 515215021, now seen corresponding path program 1 times [2024-11-24 02:05:53,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:53,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236681210] [2024-11-24 02:05:53,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:53,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:56,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:56,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236681210] [2024-11-24 02:05:56,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236681210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:56,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:56,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-24 02:05:56,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58535692] [2024-11-24 02:05:56,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:56,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 02:05:56,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:56,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 02:05:56,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-24 02:05:56,526 INFO L87 Difference]: Start difference. First operand 677 states and 983 transitions. Second operand has 22 states, 20 states have (on average 3.15) internal successors, (63), 22 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:05:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:59,534 INFO L93 Difference]: Finished difference Result 1145 states and 1654 transitions. [2024-11-24 02:05:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:05:59,535 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.15) internal successors, (63), 22 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 155 [2024-11-24 02:05:59,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:59,538 INFO L225 Difference]: With dead ends: 1145 [2024-11-24 02:05:59,538 INFO L226 Difference]: Without dead ends: 763 [2024-11-24 02:05:59,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=177, Invalid=1013, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 02:05:59,540 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 317 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:59,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1388 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 02:05:59,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-24 02:05:59,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 723. [2024-11-24 02:05:59,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 667 states have (on average 1.431784107946027) internal successors, (955), 669 states have internal predecessors, (955), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:05:59,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1051 transitions. [2024-11-24 02:05:59,668 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1051 transitions. Word has length 155 [2024-11-24 02:05:59,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:59,668 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 1051 transitions. [2024-11-24 02:05:59,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.15) internal successors, (63), 22 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 02:05:59,669 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1051 transitions. [2024-11-24 02:05:59,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:05:59,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:59,671 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:59,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-24 02:05:59,671 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:59,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:59,672 INFO L85 PathProgramCache]: Analyzing trace with hash -71590993, now seen corresponding path program 1 times [2024-11-24 02:05:59,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:59,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040640273] [2024-11-24 02:05:59,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:59,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:59,886 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:05:59,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:59,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040640273] [2024-11-24 02:05:59,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040640273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:59,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:59,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:05:59,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597313283] [2024-11-24 02:05:59,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:59,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:05:59,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:59,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:05:59,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:05:59,888 INFO L87 Difference]: Start difference. First operand 723 states and 1051 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:06:00,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:00,265 INFO L93 Difference]: Finished difference Result 1172 states and 1692 transitions. [2024-11-24 02:06:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:06:00,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-24 02:06:00,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:00,270 INFO L225 Difference]: With dead ends: 1172 [2024-11-24 02:06:00,270 INFO L226 Difference]: Without dead ends: 763 [2024-11-24 02:06:00,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:06:00,271 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 51 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:00,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 512 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:06:00,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-24 02:06:00,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 723. [2024-11-24 02:06:00,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 667 states have (on average 1.4272863568215892) internal successors, (952), 669 states have internal predecessors, (952), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:06:00,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1048 transitions. [2024-11-24 02:06:00,341 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1048 transitions. Word has length 155 [2024-11-24 02:06:00,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:00,341 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 1048 transitions. [2024-11-24 02:06:00,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:06:00,342 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1048 transitions. [2024-11-24 02:06:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:06:00,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:00,343 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:00,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-24 02:06:00,343 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:06:00,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:00,344 INFO L85 PathProgramCache]: Analyzing trace with hash 649228527, now seen corresponding path program 1 times [2024-11-24 02:06:00,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:00,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472583348] [2024-11-24 02:06:00,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:00,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:04,340 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:06:04,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:04,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472583348] [2024-11-24 02:06:04,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472583348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:04,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:04,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 02:06:04,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558145440] [2024-11-24 02:06:04,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:04,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 02:06:04,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:04,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 02:06:04,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-24 02:06:04,341 INFO L87 Difference]: Start difference. First operand 723 states and 1048 transitions. Second operand has 21 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:06:08,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:08,287 INFO L93 Difference]: Finished difference Result 1212 states and 1745 transitions. [2024-11-24 02:06:08,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:06:08,288 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-24 02:06:08,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:08,290 INFO L225 Difference]: With dead ends: 1212 [2024-11-24 02:06:08,290 INFO L226 Difference]: Without dead ends: 803 [2024-11-24 02:06:08,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=157, Invalid=1033, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 02:06:08,292 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 328 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:08,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1731 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 02:06:08,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2024-11-24 02:06:08,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 736. [2024-11-24 02:06:08,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 680 states have (on average 1.4308823529411765) internal successors, (973), 682 states have internal predecessors, (973), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:06:08,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1069 transitions. [2024-11-24 02:06:08,403 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1069 transitions. Word has length 155 [2024-11-24 02:06:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:08,403 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 1069 transitions. [2024-11-24 02:06:08,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:06:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1069 transitions. [2024-11-24 02:06:08,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:06:08,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:08,405 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:08,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-24 02:06:08,405 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:06:08,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:08,406 INFO L85 PathProgramCache]: Analyzing trace with hash 5741931, now seen corresponding path program 1 times [2024-11-24 02:06:08,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:08,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328054351] [2024-11-24 02:06:08,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:08,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:09,030 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:06:09,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:09,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328054351] [2024-11-24 02:06:09,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328054351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:09,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:09,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:06:09,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721631912] [2024-11-24 02:06:09,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:09,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:06:09,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:09,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:06:09,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:06:09,031 INFO L87 Difference]: Start difference. First operand 736 states and 1069 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:06:10,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:10,031 INFO L93 Difference]: Finished difference Result 1141 states and 1649 transitions. [2024-11-24 02:06:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:06:10,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-24 02:06:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:10,035 INFO L225 Difference]: With dead ends: 1141 [2024-11-24 02:06:10,035 INFO L226 Difference]: Without dead ends: 697 [2024-11-24 02:06:10,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:06:10,037 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 149 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:10,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 448 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 02:06:10,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-24 02:06:10,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2024-11-24 02:06:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 641 states have (on average 1.424336973478939) internal successors, (913), 643 states have internal predecessors, (913), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:06:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1009 transitions. [2024-11-24 02:06:10,128 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1009 transitions. Word has length 155 [2024-11-24 02:06:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:10,128 INFO L471 AbstractCegarLoop]: Abstraction has 697 states and 1009 transitions. [2024-11-24 02:06:10,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 02:06:10,129 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1009 transitions. [2024-11-24 02:06:10,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:06:10,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:10,130 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:10,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-24 02:06:10,130 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:06:10,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:10,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1003368563, now seen corresponding path program 1 times [2024-11-24 02:06:10,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:10,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593162907] [2024-11-24 02:06:10,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:10,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:12,292 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:06:12,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:12,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593162907] [2024-11-24 02:06:12,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593162907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:12,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:12,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:06:12,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200517650] [2024-11-24 02:06:12,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:12,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:06:12,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:12,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:06:12,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:06:12,294 INFO L87 Difference]: Start difference. First operand 697 states and 1009 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:06:15,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:15,714 INFO L93 Difference]: Finished difference Result 1378 states and 1969 transitions. [2024-11-24 02:06:15,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:06:15,714 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-24 02:06:15,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:15,718 INFO L225 Difference]: With dead ends: 1378 [2024-11-24 02:06:15,718 INFO L226 Difference]: Without dead ends: 973 [2024-11-24 02:06:15,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=175, Invalid=817, Unknown=0, NotChecked=0, Total=992 [2024-11-24 02:06:15,720 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 768 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:15,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1012 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 02:06:15,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2024-11-24 02:06:15,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 739. [2024-11-24 02:06:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 683 states have (on average 1.4128843338213763) internal successors, (965), 685 states have internal predecessors, (965), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:06:15,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1061 transitions. [2024-11-24 02:06:15,824 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1061 transitions. Word has length 155 [2024-11-24 02:06:15,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:15,824 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1061 transitions. [2024-11-24 02:06:15,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:06:15,825 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1061 transitions. [2024-11-24 02:06:15,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:06:15,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:15,826 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:15,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-24 02:06:15,826 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:06:15,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1812715189, now seen corresponding path program 1 times [2024-11-24 02:06:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958596207] [2024-11-24 02:06:15,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:15,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:16,026 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-24 02:06:16,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:16,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958596207] [2024-11-24 02:06:16,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958596207] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:06:16,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138130314] [2024-11-24 02:06:16,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:16,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:16,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:06:16,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:06:16,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 02:06:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:16,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:06:16,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:06:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:06:16,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:06:16,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138130314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:16,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:06:16,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-24 02:06:16,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561334360] [2024-11-24 02:06:16,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:16,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:06:16,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:16,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:06:16,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:06:16,707 INFO L87 Difference]: Start difference. First operand 739 states and 1061 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:06:16,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:16,824 INFO L93 Difference]: Finished difference Result 1153 states and 1652 transitions. [2024-11-24 02:06:16,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:06:16,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-24 02:06:16,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:16,828 INFO L225 Difference]: With dead ends: 1153 [2024-11-24 02:06:16,828 INFO L226 Difference]: Without dead ends: 748 [2024-11-24 02:06:16,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:06:16,829 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:16,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 692 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:06:16,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-11-24 02:06:16,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2024-11-24 02:06:16,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 692 states have (on average 1.407514450867052) internal successors, (974), 694 states have internal predecessors, (974), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:06:16,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1070 transitions. [2024-11-24 02:06:16,957 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1070 transitions. Word has length 155 [2024-11-24 02:06:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:16,958 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1070 transitions. [2024-11-24 02:06:16,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 02:06:16,958 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1070 transitions. [2024-11-24 02:06:16,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:06:16,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:16,960 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:16,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 02:06:17,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d9404f-cff2-4fcd-8fd5-b6a311e58ccb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:06:17,161 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:06:17,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:17,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1065408177, now seen corresponding path program 1 times [2024-11-24 02:06:17,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:17,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070365110] [2024-11-24 02:06:17,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:17,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:20,713 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:06:20,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:20,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070365110] [2024-11-24 02:06:20,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070365110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:20,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:20,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-24 02:06:20,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81867668] [2024-11-24 02:06:20,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:20,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 02:06:20,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:20,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 02:06:20,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-24 02:06:20,715 INFO L87 Difference]: Start difference. First operand 748 states and 1070 transitions. Second operand has 23 states, 21 states have (on average 3.0) internal successors, (63), 23 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:06:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:26,125 INFO L93 Difference]: Finished difference Result 1645 states and 2319 transitions. [2024-11-24 02:06:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-24 02:06:26,125 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.0) internal successors, (63), 23 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-24 02:06:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:26,128 INFO L225 Difference]: With dead ends: 1645 [2024-11-24 02:06:26,128 INFO L226 Difference]: Without dead ends: 1231 [2024-11-24 02:06:26,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=344, Invalid=2206, Unknown=0, NotChecked=0, Total=2550 [2024-11-24 02:06:26,130 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 825 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2069 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:26,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2069 Invalid, 2972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 02:06:26,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-24 02:06:26,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 839. [2024-11-24 02:06:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 783 states have (on average 1.3856960408684547) internal successors, (1085), 785 states have internal predecessors, (1085), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:06:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1181 transitions. [2024-11-24 02:06:26,195 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1181 transitions. Word has length 155 [2024-11-24 02:06:26,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:26,195 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1181 transitions. [2024-11-24 02:06:26,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.0) internal successors, (63), 23 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 02:06:26,196 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1181 transitions. [2024-11-24 02:06:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:06:26,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:26,196 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:26,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-24 02:06:26,197 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:06:26,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:26,197 INFO L85 PathProgramCache]: Analyzing trace with hash 28374185, now seen corresponding path program 1 times [2024-11-24 02:06:26,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:26,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396262536] [2024-11-24 02:06:26,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:26,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:29,451 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 02:06:29,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:29,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396262536] [2024-11-24 02:06:29,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396262536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:29,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:29,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 02:06:29,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197220605] [2024-11-24 02:06:29,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:29,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 02:06:29,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:29,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 02:06:29,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:06:29,454 INFO L87 Difference]: Start difference. First operand 839 states and 1181 transitions. Second operand has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-24 02:06:32,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:32,855 INFO L93 Difference]: Finished difference Result 1325 states and 1866 transitions. [2024-11-24 02:06:32,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:06:32,856 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) Word has length 155 [2024-11-24 02:06:32,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:32,859 INFO L225 Difference]: With dead ends: 1325 [2024-11-24 02:06:32,859 INFO L226 Difference]: Without dead ends: 892 [2024-11-24 02:06:32,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2024-11-24 02:06:32,860 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 461 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:32,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1049 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1602 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-24 02:06:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2024-11-24 02:06:32,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 786. [2024-11-24 02:06:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 730 states have (on average 1.3821917808219177) internal successors, (1009), 732 states have internal predecessors, (1009), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 02:06:32,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1105 transitions. [2024-11-24 02:06:32,984 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1105 transitions. Word has length 155 [2024-11-24 02:06:32,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:32,984 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 1105 transitions. [2024-11-24 02:06:32,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-24 02:06:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1105 transitions. [2024-11-24 02:06:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:06:32,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:32,986 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:32,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-24 02:06:32,987 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:06:32,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:32,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1838295507, now seen corresponding path program 1 times [2024-11-24 02:06:32,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:32,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831771183] [2024-11-24 02:06:32,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:32,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:06,701 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 02:13:38,770 WARN L286 SmtUtils]: Spent 32.06s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 02:13:54,799 WARN L286 SmtUtils]: Spent 16.03s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 02:14:26,840 WARN L286 SmtUtils]: Spent 32.04s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 02:14:58,876 WARN L286 SmtUtils]: Spent 32.03s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)