./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.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_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/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_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/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_168ede78-0f8f-4373-a6da-463d83a371fc/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 47e8ddd221104cc805d3d68561579c1d0ceb215c71efab48659b0323dc3025dc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:29:56,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:29:56,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:29:56,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:29:56,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:29:56,907 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:29:56,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:29:56,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:29:56,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:29:56,910 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:29:56,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:29:56,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:29:56,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:29:56,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:29:56,912 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:29:56,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:29:56,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:29:56,913 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:29:56,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:29:56,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:29:56,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:29:56,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:29:56,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:29:56,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:29:56,914 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:29:56,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:29:56,914 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:29:56,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:29:56,915 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:29:56,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:29:56,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:29:56,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:29:56,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:56,916 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:29:56,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:29:56,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:29:56,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:29:56,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:56,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:29:56,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:29:56,917 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:29:56,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:29:56,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:29:56,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:29:56,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:29:56,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:29:56,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:29:56,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:29:56,918 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_168ede78-0f8f-4373-a6da-463d83a371fc/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 -> 47e8ddd221104cc805d3d68561579c1d0ceb215c71efab48659b0323dc3025dc [2024-11-24 00:29:57,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:29:57,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:29:57,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:29:57,243 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:29:57,243 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:29:57,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2024-11-24 00:30:00,239 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/data/4af7eec1c/5ec2c55915474680b88e59f9b9a22f13/FLAGc922cebda [2024-11-24 00:30:00,487 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:30:00,488 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2024-11-24 00:30:00,497 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/data/4af7eec1c/5ec2c55915474680b88e59f9b9a22f13/FLAGc922cebda [2024-11-24 00:30:00,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/data/4af7eec1c/5ec2c55915474680b88e59f9b9a22f13 [2024-11-24 00:30:00,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:30:00,810 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:30:00,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:30:00,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:30:00,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:30:00,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:30:00" (1/1) ... [2024-11-24 00:30:00,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2511d8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:00, skipping insertion in model container [2024-11-24 00:30:00,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:30:00" (1/1) ... [2024-11-24 00:30:00,845 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:30:00,975 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_168ede78-0f8f-4373-a6da-463d83a371fc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i[916,929] [2024-11-24 00:30:01,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:30:01,045 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:30:01,057 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_168ede78-0f8f-4373-a6da-463d83a371fc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i[916,929] [2024-11-24 00:30:01,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:30:01,130 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:30:01,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01 WrapperNode [2024-11-24 00:30:01,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:30:01,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:30:01,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:30:01,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:30:01,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,197 INFO L138 Inliner]: procedures = 27, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 487 [2024-11-24 00:30:01,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:30:01,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:30:01,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:30:01,198 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:30:01,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,219 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,245 INFO L175 MemorySlicer]: Split 139 memory accesses to 2 slices as follows [2, 137]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 33 writes are split as follows [0, 33]. [2024-11-24 00:30:01,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,264 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:30:01,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:30:01,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:30:01,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:30:01,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (1/1) ... [2024-11-24 00:30:01,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:30:01,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:01,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:30:01,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:30:01,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:30:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 00:30:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 00:30:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:30:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:30:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:30:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:30:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:30:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:30:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:30:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:30:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:30:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:30:01,522 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:30:01,524 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:30:02,265 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-24 00:30:02,266 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:30:02,281 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:30:02,282 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:30:02,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:30:02 BoogieIcfgContainer [2024-11-24 00:30:02,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:30:02,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:30:02,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:30:02,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:30:02,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:30:00" (1/3) ... [2024-11-24 00:30:02,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60065d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:30:02, skipping insertion in model container [2024-11-24 00:30:02,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:30:01" (2/3) ... [2024-11-24 00:30:02,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60065d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:30:02, skipping insertion in model container [2024-11-24 00:30:02,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:30:02" (3/3) ... [2024-11-24 00:30:02,295 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-71.i [2024-11-24 00:30:02,310 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:30:02,313 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-71.i that has 2 procedures, 105 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:30:02,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:30:02,396 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;@4d4d3079, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:30:02,398 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:30:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 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 00:30:02,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 00:30:02,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:02,420 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] [2024-11-24 00:30:02,421 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:02,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:02,429 INFO L85 PathProgramCache]: Analyzing trace with hash -312506901, now seen corresponding path program 1 times [2024-11-24 00:30:02,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:02,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926175224] [2024-11-24 00:30:02,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:02,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:02,861 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 00:30:02,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:02,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926175224] [2024-11-24 00:30:02,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926175224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:30:02,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893395337] [2024-11-24 00:30:02,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:02,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:30:02,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:30:02,866 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:30:02,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:30:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:03,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:30:03,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:03,219 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 00:30:03,222 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:30:03,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893395337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:03,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:30:03,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:30:03,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957053187] [2024-11-24 00:30:03,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:03,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:30:03,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:03,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:30:03,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:30:03,256 INFO L87 Difference]: Start difference. First operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 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 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 00:30:03,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:03,293 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2024-11-24 00:30:03,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:30:03,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 144 [2024-11-24 00:30:03,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:03,303 INFO L225 Difference]: With dead ends: 203 [2024-11-24 00:30:03,303 INFO L226 Difference]: Without dead ends: 101 [2024-11-24 00:30:03,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 00:30:03,313 INFO L435 NwaCegarLoop]: 144 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, 144 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 00:30:03,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:30:03,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-24 00:30:03,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-24 00:30:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 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 00:30:03,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-11-24 00:30:03,406 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 144 [2024-11-24 00:30:03,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:03,406 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-11-24 00:30:03,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 00:30:03,407 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-11-24 00:30:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 00:30:03,409 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:03,410 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] [2024-11-24 00:30:03,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:30:03,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:30:03,613 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:03,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:03,614 INFO L85 PathProgramCache]: Analyzing trace with hash 693008529, now seen corresponding path program 1 times [2024-11-24 00:30:03,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:03,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546255674] [2024-11-24 00:30:03,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:03,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:04,073 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 00:30:04,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:04,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546255674] [2024-11-24 00:30:04,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546255674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:04,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:04,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:30:04,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807815253] [2024-11-24 00:30:04,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:04,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:04,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:04,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:04,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:04,076 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 00:30:04,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:04,133 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-11-24 00:30:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:04,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 144 [2024-11-24 00:30:04,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:04,138 INFO L225 Difference]: With dead ends: 202 [2024-11-24 00:30:04,138 INFO L226 Difference]: Without dead ends: 104 [2024-11-24 00:30:04,139 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 00:30:04,140 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:04,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:30:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-24 00:30:04,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-24 00:30:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 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 00:30:04,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2024-11-24 00:30:04,157 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 144 [2024-11-24 00:30:04,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:04,163 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2024-11-24 00:30:04,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 00:30:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2024-11-24 00:30:04,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 00:30:04,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:04,165 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] [2024-11-24 00:30:04,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:30:04,165 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:04,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:04,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1826951405, now seen corresponding path program 1 times [2024-11-24 00:30:04,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:04,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951426831] [2024-11-24 00:30:04,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:04,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:04,546 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 00:30:04,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:04,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951426831] [2024-11-24 00:30:04,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951426831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:04,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:04,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:30:04,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23984693] [2024-11-24 00:30:04,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:04,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:30:04,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:04,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:30:04,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:30:04,552 INFO L87 Difference]: Start difference. First operand 103 states and 146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 00:30:04,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:04,601 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2024-11-24 00:30:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:30:04,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 144 [2024-11-24 00:30:04,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:04,607 INFO L225 Difference]: With dead ends: 206 [2024-11-24 00:30:04,607 INFO L226 Difference]: Without dead ends: 106 [2024-11-24 00:30:04,607 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 00:30:04,608 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:04,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 415 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:30:04,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-24 00:30:04,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-24 00:30:04,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 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 00:30:04,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-24 00:30:04,628 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 144 [2024-11-24 00:30:04,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:04,628 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-24 00:30:04,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 00:30:04,632 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-24 00:30:04,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 00:30:04,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:04,634 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] [2024-11-24 00:30:04,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:30:04,635 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:04,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:04,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1825104363, now seen corresponding path program 1 times [2024-11-24 00:30:04,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:04,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861567085] [2024-11-24 00:30:04,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:04,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:06,168 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 00:30:06,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:06,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861567085] [2024-11-24 00:30:06,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861567085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:06,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:06,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:30:06,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616845346] [2024-11-24 00:30:06,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:06,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:30:06,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:06,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:30:06,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:06,173 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 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 00:30:06,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:06,897 INFO L93 Difference]: Finished difference Result 290 states and 408 transitions. [2024-11-24 00:30:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:30:06,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 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 144 [2024-11-24 00:30:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:06,900 INFO L225 Difference]: With dead ends: 290 [2024-11-24 00:30:06,900 INFO L226 Difference]: Without dead ends: 188 [2024-11-24 00:30:06,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:30:06,901 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 107 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:06,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 537 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:30:06,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-24 00:30:06,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 176. [2024-11-24 00:30:06,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 144 states have (on average 1.3125) internal successors, (189), 145 states have internal predecessors, (189), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-24 00:30:06,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 247 transitions. [2024-11-24 00:30:06,928 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 247 transitions. Word has length 144 [2024-11-24 00:30:06,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:06,928 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 247 transitions. [2024-11-24 00:30:06,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 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 00:30:06,929 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 247 transitions. [2024-11-24 00:30:06,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 00:30:06,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:06,931 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] [2024-11-24 00:30:06,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:30:06,932 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:06,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:06,932 INFO L85 PathProgramCache]: Analyzing trace with hash -872708680, now seen corresponding path program 1 times [2024-11-24 00:30:06,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:06,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940355413] [2024-11-24 00:30:06,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:06,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:08,783 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 00:30:08,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:08,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940355413] [2024-11-24 00:30:08,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940355413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:08,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:08,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:30:08,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120705655] [2024-11-24 00:30:08,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:08,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:30:08,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:08,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:30:08,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:30:08,788 INFO L87 Difference]: Start difference. First operand 176 states and 247 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (19), 1 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 00:30:09,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:09,643 INFO L93 Difference]: Finished difference Result 435 states and 613 transitions. [2024-11-24 00:30:09,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:30:09,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (19), 1 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 145 [2024-11-24 00:30:09,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:09,651 INFO L225 Difference]: With dead ends: 435 [2024-11-24 00:30:09,651 INFO L226 Difference]: Without dead ends: 262 [2024-11-24 00:30:09,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:30:09,653 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 102 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:09,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 669 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:30:09,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-24 00:30:09,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 185. [2024-11-24 00:30:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 153 states have (on average 1.326797385620915) internal successors, (203), 154 states have internal predecessors, (203), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-24 00:30:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 261 transitions. [2024-11-24 00:30:09,694 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 261 transitions. Word has length 145 [2024-11-24 00:30:09,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:09,695 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 261 transitions. [2024-11-24 00:30:09,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (19), 1 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 00:30:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 261 transitions. [2024-11-24 00:30:09,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 00:30:09,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:09,699 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] [2024-11-24 00:30:09,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:30:09,699 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:09,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1111641874, now seen corresponding path program 1 times [2024-11-24 00:30:09,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:09,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293781583] [2024-11-24 00:30:09,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:09,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:11,876 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 00:30:11,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:11,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293781583] [2024-11-24 00:30:11,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293781583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:11,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:11,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:30:11,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97985128] [2024-11-24 00:30:11,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:11,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:30:11,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:11,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:30:11,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:30:11,879 INFO L87 Difference]: Start difference. First operand 185 states and 261 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 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 00:30:12,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:12,524 INFO L93 Difference]: Finished difference Result 425 states and 595 transitions. [2024-11-24 00:30:12,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:30:12,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 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 146 [2024-11-24 00:30:12,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:12,529 INFO L225 Difference]: With dead ends: 425 [2024-11-24 00:30:12,529 INFO L226 Difference]: Without dead ends: 243 [2024-11-24 00:30:12,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:12,531 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 73 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:12,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 940 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:30:12,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-24 00:30:12,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2024-11-24 00:30:12,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 201 states have (on average 1.3134328358208955) internal successors, (264), 203 states have internal predecessors, (264), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-24 00:30:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 334 transitions. [2024-11-24 00:30:12,551 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 334 transitions. Word has length 146 [2024-11-24 00:30:12,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:12,552 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 334 transitions. [2024-11-24 00:30:12,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 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 00:30:12,552 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 334 transitions. [2024-11-24 00:30:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 00:30:12,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:12,554 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] [2024-11-24 00:30:12,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:30:12,554 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:12,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:12,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1492049167, now seen corresponding path program 1 times [2024-11-24 00:30:12,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:12,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243103381] [2024-11-24 00:30:12,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:12,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:14,001 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 00:30:14,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:14,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243103381] [2024-11-24 00:30:14,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243103381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:14,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:14,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:30:14,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872733906] [2024-11-24 00:30:14,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:14,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:30:14,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:14,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:30:14,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:14,003 INFO L87 Difference]: Start difference. First operand 240 states and 334 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 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 00:30:14,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:14,347 INFO L93 Difference]: Finished difference Result 554 states and 770 transitions. [2024-11-24 00:30:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:30:14,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 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 146 [2024-11-24 00:30:14,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:14,352 INFO L225 Difference]: With dead ends: 554 [2024-11-24 00:30:14,352 INFO L226 Difference]: Without dead ends: 317 [2024-11-24 00:30:14,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:30:14,355 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 98 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:14,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 361 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:30:14,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-24 00:30:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 250. [2024-11-24 00:30:14,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 211 states have (on average 1.3127962085308056) internal successors, (277), 213 states have internal predecessors, (277), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-24 00:30:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 347 transitions. [2024-11-24 00:30:14,389 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 347 transitions. Word has length 146 [2024-11-24 00:30:14,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:14,391 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 347 transitions. [2024-11-24 00:30:14,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 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 00:30:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 347 transitions. [2024-11-24 00:30:14,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 00:30:14,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:14,393 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] [2024-11-24 00:30:14,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:30:14,393 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:14,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:14,394 INFO L85 PathProgramCache]: Analyzing trace with hash -687424559, now seen corresponding path program 1 times [2024-11-24 00:30:14,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:14,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353755071] [2024-11-24 00:30:14,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:14,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:16,050 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 00:30:16,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:16,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353755071] [2024-11-24 00:30:16,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353755071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:16,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:16,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:30:16,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101337891] [2024-11-24 00:30:16,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:16,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:30:16,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:16,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:30:16,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:30:16,052 INFO L87 Difference]: Start difference. First operand 250 states and 347 transitions. Second operand has 10 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:17,167 INFO L93 Difference]: Finished difference Result 629 states and 864 transitions. [2024-11-24 00:30:17,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:30:17,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-24 00:30:17,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:17,171 INFO L225 Difference]: With dead ends: 629 [2024-11-24 00:30:17,171 INFO L226 Difference]: Without dead ends: 382 [2024-11-24 00:30:17,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:30:17,175 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 215 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:17,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 659 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:30:17,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-24 00:30:17,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 352. [2024-11-24 00:30:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 295 states have (on average 1.2949152542372881) internal successors, (382), 299 states have internal predecessors, (382), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:30:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 484 transitions. [2024-11-24 00:30:17,217 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 484 transitions. Word has length 147 [2024-11-24 00:30:17,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:17,221 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 484 transitions. [2024-11-24 00:30:17,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:17,221 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 484 transitions. [2024-11-24 00:30:17,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 00:30:17,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:17,227 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] [2024-11-24 00:30:17,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:30:17,227 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:17,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:17,228 INFO L85 PathProgramCache]: Analyzing trace with hash -838220110, now seen corresponding path program 1 times [2024-11-24 00:30:17,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:17,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215018758] [2024-11-24 00:30:17,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:17,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:19,392 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 00:30:19,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:19,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215018758] [2024-11-24 00:30:19,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215018758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:19,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:19,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:30:19,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291189264] [2024-11-24 00:30:19,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:19,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:30:19,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:19,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:30:19,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:19,394 INFO L87 Difference]: Start difference. First operand 352 states and 484 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:20,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:20,267 INFO L93 Difference]: Finished difference Result 815 states and 1114 transitions. [2024-11-24 00:30:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:30:20,268 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-24 00:30:20,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:20,271 INFO L225 Difference]: With dead ends: 815 [2024-11-24 00:30:20,271 INFO L226 Difference]: Without dead ends: 466 [2024-11-24 00:30:20,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:30:20,273 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 110 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:20,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 962 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:30:20,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-24 00:30:20,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 462. [2024-11-24 00:30:20,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 395 states have (on average 1.2911392405063291) internal successors, (510), 401 states have internal predecessors, (510), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-24 00:30:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 628 transitions. [2024-11-24 00:30:20,318 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 628 transitions. Word has length 147 [2024-11-24 00:30:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:20,318 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 628 transitions. [2024-11-24 00:30:20,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 628 transitions. [2024-11-24 00:30:20,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 00:30:20,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:20,324 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] [2024-11-24 00:30:20,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:30:20,325 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:20,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:20,325 INFO L85 PathProgramCache]: Analyzing trace with hash -2118083788, now seen corresponding path program 1 times [2024-11-24 00:30:20,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:20,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739988268] [2024-11-24 00:30:20,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:20,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:23,239 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 00:30:23,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:23,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739988268] [2024-11-24 00:30:23,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739988268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:23,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:23,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:30:23,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834229527] [2024-11-24 00:30:23,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:23,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:30:23,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:23,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:30:23,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:30:23,241 INFO L87 Difference]: Start difference. First operand 462 states and 628 transitions. Second operand has 13 states, 9 states have (on average 6.111111111111111) internal successors, (55), 13 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 00:30:25,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:25,048 INFO L93 Difference]: Finished difference Result 1027 states and 1377 transitions. [2024-11-24 00:30:25,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:30:25,050 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 6.111111111111111) internal successors, (55), 13 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 147 [2024-11-24 00:30:25,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:25,054 INFO L225 Difference]: With dead ends: 1027 [2024-11-24 00:30:25,057 INFO L226 Difference]: Without dead ends: 568 [2024-11-24 00:30:25,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:30:25,060 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 138 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:25,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1147 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:30:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-24 00:30:25,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 489. [2024-11-24 00:30:25,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 417 states have (on average 1.2781774580335732) internal successors, (533), 424 states have internal predecessors, (533), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 54 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:30:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 655 transitions. [2024-11-24 00:30:25,125 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 655 transitions. Word has length 147 [2024-11-24 00:30:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:25,126 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 655 transitions. [2024-11-24 00:30:25,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 6.111111111111111) internal successors, (55), 13 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 00:30:25,126 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 655 transitions. [2024-11-24 00:30:25,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 00:30:25,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:25,129 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] [2024-11-24 00:30:25,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:30:25,129 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:25,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:25,129 INFO L85 PathProgramCache]: Analyzing trace with hash -697671500, now seen corresponding path program 1 times [2024-11-24 00:30:25,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:25,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431014285] [2024-11-24 00:30:25,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:25,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:27,795 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 00:30:27,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:27,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431014285] [2024-11-24 00:30:27,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431014285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:27,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:27,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:30:27,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463391272] [2024-11-24 00:30:27,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:27,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:30:27,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:27,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:30:27,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:30:27,797 INFO L87 Difference]: Start difference. First operand 489 states and 655 transitions. Second operand has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 00:30:29,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:29,920 INFO L93 Difference]: Finished difference Result 1063 states and 1413 transitions. [2024-11-24 00:30:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:30:29,921 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-11-24 00:30:29,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:29,927 INFO L225 Difference]: With dead ends: 1063 [2024-11-24 00:30:29,927 INFO L226 Difference]: Without dead ends: 586 [2024-11-24 00:30:29,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:30:29,930 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 158 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:29,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 943 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 00:30:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-11-24 00:30:29,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 488. [2024-11-24 00:30:29,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 417 states have (on average 1.2733812949640289) internal successors, (531), 423 states have internal predecessors, (531), 59 states have call successors, (59), 11 states have call predecessors, (59), 11 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-24 00:30:30,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 649 transitions. [2024-11-24 00:30:30,001 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 649 transitions. Word has length 147 [2024-11-24 00:30:30,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:30,001 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 649 transitions. [2024-11-24 00:30:30,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 00:30:30,001 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 649 transitions. [2024-11-24 00:30:30,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 00:30:30,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:30,004 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] [2024-11-24 00:30:30,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:30:30,005 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:30,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:30,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1977535178, now seen corresponding path program 1 times [2024-11-24 00:30:30,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:30,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553260203] [2024-11-24 00:30:30,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:30,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:30,564 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 00:30:30,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:30,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553260203] [2024-11-24 00:30:30,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553260203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:30,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:30,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:30:30,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911143272] [2024-11-24 00:30:30,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:30,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:30:30,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:30,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:30:30,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:30:30,566 INFO L87 Difference]: Start difference. First operand 488 states and 649 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:30:31,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:31,079 INFO L93 Difference]: Finished difference Result 1057 states and 1404 transitions. [2024-11-24 00:30:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:30:31,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 147 [2024-11-24 00:30:31,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:31,083 INFO L225 Difference]: With dead ends: 1057 [2024-11-24 00:30:31,085 INFO L226 Difference]: Without dead ends: 572 [2024-11-24 00:30:31,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:31,087 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 104 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:31,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1092 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:30:31,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-24 00:30:31,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 559. [2024-11-24 00:30:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 458 states have (on average 1.244541484716157) internal successors, (570), 465 states have internal predecessors, (570), 84 states have call successors, (84), 16 states have call predecessors, (84), 16 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 00:30:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 738 transitions. [2024-11-24 00:30:31,160 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 738 transitions. Word has length 147 [2024-11-24 00:30:31,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:31,161 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 738 transitions. [2024-11-24 00:30:31,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:30:31,161 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 738 transitions. [2024-11-24 00:30:31,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 00:30:31,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:31,163 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] [2024-11-24 00:30:31,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:30:31,164 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:31,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:31,164 INFO L85 PathProgramCache]: Analyzing trace with hash 697585728, now seen corresponding path program 1 times [2024-11-24 00:30:31,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:31,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064337681] [2024-11-24 00:30:31,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:31,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:31,408 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 00:30:31,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:31,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064337681] [2024-11-24 00:30:31,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064337681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:31,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:31,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:30:31,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772966717] [2024-11-24 00:30:31,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:31,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:30:31,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:31,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:30:31,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:30:31,410 INFO L87 Difference]: Start difference. First operand 559 states and 738 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 00:30:31,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:31,785 INFO L93 Difference]: Finished difference Result 1220 states and 1611 transitions. [2024-11-24 00:30:31,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:30:31,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 148 [2024-11-24 00:30:31,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:31,790 INFO L225 Difference]: With dead ends: 1220 [2024-11-24 00:30:31,791 INFO L226 Difference]: Without dead ends: 677 [2024-11-24 00:30:31,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:31,793 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 100 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:31,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 359 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:30:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-24 00:30:31,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 627. [2024-11-24 00:30:31,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 509 states have (on average 1.2357563850687623) internal successors, (629), 517 states have internal predecessors, (629), 98 states have call successors, (98), 19 states have call predecessors, (98), 19 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:30:31,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 825 transitions. [2024-11-24 00:30:31,875 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 825 transitions. Word has length 148 [2024-11-24 00:30:31,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:31,877 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 825 transitions. [2024-11-24 00:30:31,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 00:30:31,877 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 825 transitions. [2024-11-24 00:30:31,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 00:30:31,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:31,880 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] [2024-11-24 00:30:31,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:30:31,881 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:31,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:31,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1475214440, now seen corresponding path program 1 times [2024-11-24 00:30:31,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:31,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733003124] [2024-11-24 00:30:31,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:31,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:32,539 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 00:30:32,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:32,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733003124] [2024-11-24 00:30:32,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733003124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:32,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:32,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:30:32,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936556681] [2024-11-24 00:30:32,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:32,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:30:32,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:32,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:30:32,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:32,541 INFO L87 Difference]: Start difference. First operand 627 states and 825 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 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 00:30:33,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:33,122 INFO L93 Difference]: Finished difference Result 1241 states and 1633 transitions. [2024-11-24 00:30:33,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:30:33,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 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 148 [2024-11-24 00:30:33,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:33,129 INFO L225 Difference]: With dead ends: 1241 [2024-11-24 00:30:33,129 INFO L226 Difference]: Without dead ends: 642 [2024-11-24 00:30:33,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:30:33,131 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 90 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:33,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 414 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:30:33,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-24 00:30:33,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 588. [2024-11-24 00:30:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 477 states have (on average 1.2348008385744236) internal successors, (589), 484 states have internal predecessors, (589), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-24 00:30:33,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 773 transitions. [2024-11-24 00:30:33,204 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 773 transitions. Word has length 148 [2024-11-24 00:30:33,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:33,205 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 773 transitions. [2024-11-24 00:30:33,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 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 00:30:33,205 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 773 transitions. [2024-11-24 00:30:33,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 00:30:33,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:33,208 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] [2024-11-24 00:30:33,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:30:33,208 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:33,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:33,209 INFO L85 PathProgramCache]: Analyzing trace with hash -113133462, now seen corresponding path program 1 times [2024-11-24 00:30:33,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:33,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564498940] [2024-11-24 00:30:33,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:33,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:33,918 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 00:30:33,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:33,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564498940] [2024-11-24 00:30:33,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564498940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:33,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:33,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:30:33,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54854529] [2024-11-24 00:30:33,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:33,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:30:33,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:33,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:30:33,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:33,924 INFO L87 Difference]: Start difference. First operand 588 states and 773 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 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 00:30:34,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:34,434 INFO L93 Difference]: Finished difference Result 1148 states and 1507 transitions. [2024-11-24 00:30:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:30:34,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 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 148 [2024-11-24 00:30:34,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:34,440 INFO L225 Difference]: With dead ends: 1148 [2024-11-24 00:30:34,440 INFO L226 Difference]: Without dead ends: 588 [2024-11-24 00:30:34,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:30:34,443 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 60 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:34,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 606 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:30:34,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-24 00:30:34,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 585. [2024-11-24 00:30:34,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 473 states have (on average 1.2283298097251585) internal successors, (581), 480 states have internal predecessors, (581), 92 states have call successors, (92), 19 states have call predecessors, (92), 19 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-24 00:30:34,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 765 transitions. [2024-11-24 00:30:34,507 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 765 transitions. Word has length 148 [2024-11-24 00:30:34,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:34,507 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 765 transitions. [2024-11-24 00:30:34,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 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 00:30:34,509 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 765 transitions. [2024-11-24 00:30:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 00:30:34,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:34,512 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] [2024-11-24 00:30:34,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:30:34,512 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:34,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1341434545, now seen corresponding path program 1 times [2024-11-24 00:30:34,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:34,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316016790] [2024-11-24 00:30:34,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:34,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:36,905 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 00:30:36,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:36,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316016790] [2024-11-24 00:30:36,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316016790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:36,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:36,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:30:36,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695067978] [2024-11-24 00:30:36,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:36,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:30:36,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:36,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:30:36,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:30:36,908 INFO L87 Difference]: Start difference. First operand 585 states and 765 transitions. Second operand has 9 states, 6 states have (on average 9.333333333333334) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 00:30:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:37,804 INFO L93 Difference]: Finished difference Result 1136 states and 1487 transitions. [2024-11-24 00:30:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:30:37,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 9.333333333333334) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-11-24 00:30:37,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:37,808 INFO L225 Difference]: With dead ends: 1136 [2024-11-24 00:30:37,809 INFO L226 Difference]: Without dead ends: 579 [2024-11-24 00:30:37,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:37,811 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 69 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:37,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 763 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:30:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-24 00:30:37,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 567. [2024-11-24 00:30:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 455 states have (on average 1.2263736263736265) internal successors, (558), 462 states have internal predecessors, (558), 92 states have call successors, (92), 19 states have call predecessors, (92), 19 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-24 00:30:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 742 transitions. [2024-11-24 00:30:37,873 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 742 transitions. Word has length 148 [2024-11-24 00:30:37,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:37,874 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 742 transitions. [2024-11-24 00:30:37,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 9.333333333333334) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 00:30:37,874 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 742 transitions. [2024-11-24 00:30:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 00:30:37,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:37,876 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] [2024-11-24 00:30:37,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:30:37,877 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:37,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1371141893, now seen corresponding path program 1 times [2024-11-24 00:30:37,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:37,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143384797] [2024-11-24 00:30:37,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:37,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:40,407 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 00:30:40,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:40,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143384797] [2024-11-24 00:30:40,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143384797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:40,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:40,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:30:40,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887010440] [2024-11-24 00:30:40,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:40,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:30:40,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:40,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:30:40,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:30:40,409 INFO L87 Difference]: Start difference. First operand 567 states and 742 transitions. Second operand has 14 states, 12 states have (on average 4.666666666666667) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:41,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:41,857 INFO L93 Difference]: Finished difference Result 1244 states and 1638 transitions. [2024-11-24 00:30:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:30:41,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.666666666666667) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-11-24 00:30:41,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:41,862 INFO L225 Difference]: With dead ends: 1244 [2024-11-24 00:30:41,862 INFO L226 Difference]: Without dead ends: 705 [2024-11-24 00:30:41,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:30:41,864 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 83 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:41,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1317 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:30:41,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-24 00:30:41,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 701. [2024-11-24 00:30:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 575 states have (on average 1.2469565217391305) internal successors, (717), 584 states have internal predecessors, (717), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-24 00:30:41,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 925 transitions. [2024-11-24 00:30:41,936 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 925 transitions. Word has length 148 [2024-11-24 00:30:41,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:41,936 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 925 transitions. [2024-11-24 00:30:41,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.666666666666667) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:41,937 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 925 transitions. [2024-11-24 00:30:41,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-24 00:30:41,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:41,941 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] [2024-11-24 00:30:41,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:30:41,942 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:41,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:41,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1462895876, now seen corresponding path program 1 times [2024-11-24 00:30:41,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:41,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379421060] [2024-11-24 00:30:41,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:41,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:44,415 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 00:30:44,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:44,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379421060] [2024-11-24 00:30:44,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379421060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:44,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:44,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:30:44,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436640154] [2024-11-24 00:30:44,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:44,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:30:44,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:44,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:30:44,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:44,418 INFO L87 Difference]: Start difference. First operand 701 states and 925 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:47,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:47,070 INFO L93 Difference]: Finished difference Result 1427 states and 1879 transitions. [2024-11-24 00:30:47,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:30:47,071 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 149 [2024-11-24 00:30:47,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:47,076 INFO L225 Difference]: With dead ends: 1427 [2024-11-24 00:30:47,076 INFO L226 Difference]: Without dead ends: 754 [2024-11-24 00:30:47,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:30:47,078 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 252 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:47,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1125 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:30:47,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-11-24 00:30:47,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 716. [2024-11-24 00:30:47,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 590 states have (on average 1.2474576271186442) internal successors, (736), 599 states have internal predecessors, (736), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-24 00:30:47,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 944 transitions. [2024-11-24 00:30:47,149 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 944 transitions. Word has length 149 [2024-11-24 00:30:47,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:47,150 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 944 transitions. [2024-11-24 00:30:47,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:47,150 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 944 transitions. [2024-11-24 00:30:47,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-24 00:30:47,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:47,153 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] [2024-11-24 00:30:47,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:30:47,153 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:47,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:47,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1026633086, now seen corresponding path program 1 times [2024-11-24 00:30:47,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:47,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597709285] [2024-11-24 00:30:47,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:47,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:49,535 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 00:30:49,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:49,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597709285] [2024-11-24 00:30:49,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597709285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:49,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:49,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:30:49,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970435287] [2024-11-24 00:30:49,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:49,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:30:49,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:49,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:30:49,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:49,537 INFO L87 Difference]: Start difference. First operand 716 states and 944 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:50,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:50,659 INFO L93 Difference]: Finished difference Result 1486 states and 1953 transitions. [2024-11-24 00:30:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:30:50,660 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 149 [2024-11-24 00:30:50,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:50,665 INFO L225 Difference]: With dead ends: 1486 [2024-11-24 00:30:50,665 INFO L226 Difference]: Without dead ends: 798 [2024-11-24 00:30:50,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:30:50,668 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 169 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:50,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1244 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:30:50,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-24 00:30:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 775. [2024-11-24 00:30:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 643 states have (on average 1.2426127527216173) internal successors, (799), 654 states have internal predecessors, (799), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:30:50,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1015 transitions. [2024-11-24 00:30:50,748 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1015 transitions. Word has length 149 [2024-11-24 00:30:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:50,749 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1015 transitions. [2024-11-24 00:30:50,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1015 transitions. [2024-11-24 00:30:50,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-24 00:30:50,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:50,752 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] [2024-11-24 00:30:50,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:30:50,752 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:50,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:50,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2122814915, now seen corresponding path program 1 times [2024-11-24 00:30:50,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:50,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326158080] [2024-11-24 00:30:50,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:50,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:51,565 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 00:30:51,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:51,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326158080] [2024-11-24 00:30:51,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326158080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:51,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:51,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:30:51,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828880084] [2024-11-24 00:30:51,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:51,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:30:51,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:51,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:30:51,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:51,568 INFO L87 Difference]: Start difference. First operand 775 states and 1015 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 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 00:30:52,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:52,039 INFO L93 Difference]: Finished difference Result 1440 states and 1883 transitions. [2024-11-24 00:30:52,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:30:52,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 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 149 [2024-11-24 00:30:52,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:52,047 INFO L225 Difference]: With dead ends: 1440 [2024-11-24 00:30:52,047 INFO L226 Difference]: Without dead ends: 693 [2024-11-24 00:30:52,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:30:52,049 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 51 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:52,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 557 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:30:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-24 00:30:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2024-11-24 00:30:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 563 states have (on average 1.2238010657193605) internal successors, (689), 572 states have internal predecessors, (689), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-24 00:30:52,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 897 transitions. [2024-11-24 00:30:52,137 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 897 transitions. Word has length 149 [2024-11-24 00:30:52,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:52,138 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 897 transitions. [2024-11-24 00:30:52,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 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 00:30:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 897 transitions. [2024-11-24 00:30:52,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:30:52,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:52,141 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] [2024-11-24 00:30:52,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:30:52,141 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:52,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:52,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1261388487, now seen corresponding path program 1 times [2024-11-24 00:30:52,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:52,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244517705] [2024-11-24 00:30:52,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:52,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:53,600 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 00:30:53,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:53,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244517705] [2024-11-24 00:30:53,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244517705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:53,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:53,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:30:53,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183049909] [2024-11-24 00:30:53,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:53,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:30:53,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:53,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:30:53,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:30:53,602 INFO L87 Difference]: Start difference. First operand 691 states and 897 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 00:30:54,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:54,430 INFO L93 Difference]: Finished difference Result 1378 states and 1784 transitions. [2024-11-24 00:30:54,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:30:54,430 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-24 00:30:54,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:54,436 INFO L225 Difference]: With dead ends: 1378 [2024-11-24 00:30:54,437 INFO L226 Difference]: Without dead ends: 715 [2024-11-24 00:30:54,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:30:54,440 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 71 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:54,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1248 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:30:54,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-24 00:30:54,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 665. [2024-11-24 00:30:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 541 states have (on average 1.212569316081331) internal successors, (656), 549 states have internal predecessors, (656), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:30:54,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 852 transitions. [2024-11-24 00:30:54,527 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 852 transitions. Word has length 150 [2024-11-24 00:30:54,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:54,528 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 852 transitions. [2024-11-24 00:30:54,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 00:30:54,528 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 852 transitions. [2024-11-24 00:30:54,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:30:54,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:54,530 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] [2024-11-24 00:30:54,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:30:54,531 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:54,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:54,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1116431264, now seen corresponding path program 1 times [2024-11-24 00:30:54,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:54,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855987225] [2024-11-24 00:30:54,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:54,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:56,487 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 00:30:56,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:56,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855987225] [2024-11-24 00:30:56,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855987225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:56,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:56,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:30:56,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256857690] [2024-11-24 00:30:56,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:56,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:30:56,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:56,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:30:56,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:30:56,489 INFO L87 Difference]: Start difference. First operand 665 states and 852 transitions. Second operand has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 00:30:57,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:57,545 INFO L93 Difference]: Finished difference Result 1519 states and 1954 transitions. [2024-11-24 00:30:57,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:30:57,551 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-24 00:30:57,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:57,557 INFO L225 Difference]: With dead ends: 1519 [2024-11-24 00:30:57,557 INFO L226 Difference]: Without dead ends: 882 [2024-11-24 00:30:57,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:30:57,562 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 165 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:57,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1072 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:30:57,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-24 00:30:57,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 734. [2024-11-24 00:30:57,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 607 states have (on average 1.2257001647446457) internal successors, (744), 616 states have internal predecessors, (744), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-24 00:30:57,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 944 transitions. [2024-11-24 00:30:57,646 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 944 transitions. Word has length 150 [2024-11-24 00:30:57,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:57,648 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 944 transitions. [2024-11-24 00:30:57,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-24 00:30:57,648 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 944 transitions. [2024-11-24 00:30:57,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:30:57,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:57,651 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] [2024-11-24 00:30:57,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:30:57,652 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:57,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:57,653 INFO L85 PathProgramCache]: Analyzing trace with hash 95362910, now seen corresponding path program 1 times [2024-11-24 00:30:57,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:57,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391666578] [2024-11-24 00:30:57,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:57,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:59,034 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 00:30:59,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:59,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391666578] [2024-11-24 00:30:59,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391666578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:59,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:59,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:30:59,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210398438] [2024-11-24 00:30:59,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:59,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:30:59,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:59,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:30:59,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:30:59,036 INFO L87 Difference]: Start difference. First operand 734 states and 944 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:59,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:59,540 INFO L93 Difference]: Finished difference Result 1592 states and 2048 transitions. [2024-11-24 00:30:59,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:30:59,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-24 00:30:59,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:59,545 INFO L225 Difference]: With dead ends: 1592 [2024-11-24 00:30:59,545 INFO L226 Difference]: Without dead ends: 886 [2024-11-24 00:30:59,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:30:59,547 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 56 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:59,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 650 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:30:59,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-24 00:30:59,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 756. [2024-11-24 00:30:59,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 629 states have (on average 1.2257551669316376) internal successors, (771), 638 states have internal predecessors, (771), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-24 00:30:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 971 transitions. [2024-11-24 00:30:59,655 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 971 transitions. Word has length 150 [2024-11-24 00:30:59,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:59,656 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 971 transitions. [2024-11-24 00:30:59,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:30:59,656 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 971 transitions. [2024-11-24 00:30:59,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:30:59,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:59,658 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] [2024-11-24 00:30:59,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:30:59,658 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:59,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:59,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2137056724, now seen corresponding path program 1 times [2024-11-24 00:30:59,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:30:59,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039175074] [2024-11-24 00:30:59,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:59,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:30:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:59,992 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 00:30:59,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:30:59,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039175074] [2024-11-24 00:30:59,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039175074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:30:59,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:30:59,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:30:59,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440728376] [2024-11-24 00:30:59,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:30:59,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:30:59,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:30:59,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:30:59,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:30:59,994 INFO L87 Difference]: Start difference. First operand 756 states and 971 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 00:31:00,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:00,476 INFO L93 Difference]: Finished difference Result 1623 states and 2083 transitions. [2024-11-24 00:31:00,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:31:00,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 150 [2024-11-24 00:31:00,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:00,481 INFO L225 Difference]: With dead ends: 1623 [2024-11-24 00:31:00,481 INFO L226 Difference]: Without dead ends: 895 [2024-11-24 00:31:00,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:00,483 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 45 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:00,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 549 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:31:00,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-11-24 00:31:00,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 764. [2024-11-24 00:31:00,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 637 states have (on average 1.2260596546310831) internal successors, (781), 646 states have internal predecessors, (781), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-24 00:31:00,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 981 transitions. [2024-11-24 00:31:00,561 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 981 transitions. Word has length 150 [2024-11-24 00:31:00,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:00,561 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 981 transitions. [2024-11-24 00:31:00,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 00:31:00,561 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 981 transitions. [2024-11-24 00:31:00,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:31:00,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:00,563 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] [2024-11-24 00:31:00,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:31:00,564 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:00,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:00,565 INFO L85 PathProgramCache]: Analyzing trace with hash -857193046, now seen corresponding path program 1 times [2024-11-24 00:31:00,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:00,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412290988] [2024-11-24 00:31:00,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:00,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:02,836 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 00:31:02,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:02,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412290988] [2024-11-24 00:31:02,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412290988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:02,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:02,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 00:31:02,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764596179] [2024-11-24 00:31:02,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:02,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:31:02,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:02,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:31:02,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:31:02,837 INFO L87 Difference]: Start difference. First operand 764 states and 981 transitions. Second operand has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 00:31:03,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:03,793 INFO L93 Difference]: Finished difference Result 1584 states and 2031 transitions. [2024-11-24 00:31:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:31:03,795 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 150 [2024-11-24 00:31:03,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:03,799 INFO L225 Difference]: With dead ends: 1584 [2024-11-24 00:31:03,799 INFO L226 Difference]: Without dead ends: 848 [2024-11-24 00:31:03,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:31:03,802 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 100 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:03,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1046 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:31:03,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-24 00:31:03,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 768. [2024-11-24 00:31:03,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 641 states have (on average 1.2246489859594383) internal successors, (785), 650 states have internal predecessors, (785), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-24 00:31:03,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 985 transitions. [2024-11-24 00:31:03,888 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 985 transitions. Word has length 150 [2024-11-24 00:31:03,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:03,888 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 985 transitions. [2024-11-24 00:31:03,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 00:31:03,889 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 985 transitions. [2024-11-24 00:31:03,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:31:03,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:03,890 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] [2024-11-24 00:31:03,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:31:03,891 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:03,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1792332638, now seen corresponding path program 1 times [2024-11-24 00:31:03,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:03,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984705408] [2024-11-24 00:31:03,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:03,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:04,486 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 00:31:04,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:04,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984705408] [2024-11-24 00:31:04,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984705408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:04,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:04,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:04,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400693968] [2024-11-24 00:31:04,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:04,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:31:04,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:04,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:31:04,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:31:04,489 INFO L87 Difference]: Start difference. First operand 768 states and 985 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 00:31:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:05,060 INFO L93 Difference]: Finished difference Result 1638 states and 2093 transitions. [2024-11-24 00:31:05,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:31:05,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-24 00:31:05,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:05,065 INFO L225 Difference]: With dead ends: 1638 [2024-11-24 00:31:05,065 INFO L226 Difference]: Without dead ends: 898 [2024-11-24 00:31:05,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:05,067 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 65 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:05,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 463 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:31:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-24 00:31:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 730. [2024-11-24 00:31:05,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 605 states have (on average 1.221487603305785) internal successors, (739), 613 states have internal predecessors, (739), 98 states have call successors, (98), 26 states have call predecessors, (98), 26 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:31:05,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 935 transitions. [2024-11-24 00:31:05,159 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 935 transitions. Word has length 150 [2024-11-24 00:31:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:05,160 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 935 transitions. [2024-11-24 00:31:05,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 00:31:05,160 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 935 transitions. [2024-11-24 00:31:05,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:31:05,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:05,163 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] [2024-11-24 00:31:05,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:31:05,165 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:05,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:05,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1730293024, now seen corresponding path program 1 times [2024-11-24 00:31:05,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:05,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015784303] [2024-11-24 00:31:05,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:05,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:06,435 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 00:31:06,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:06,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015784303] [2024-11-24 00:31:06,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015784303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:06,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:06,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:31:06,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91392035] [2024-11-24 00:31:06,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:06,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:31:06,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:06,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:31:06,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:31:06,437 INFO L87 Difference]: Start difference. First operand 730 states and 935 transitions. Second operand has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:31:07,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:07,262 INFO L93 Difference]: Finished difference Result 1545 states and 1974 transitions. [2024-11-24 00:31:07,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:31:07,262 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-24 00:31:07,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:07,266 INFO L225 Difference]: With dead ends: 1545 [2024-11-24 00:31:07,266 INFO L226 Difference]: Without dead ends: 843 [2024-11-24 00:31:07,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:31:07,268 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 72 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:07,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 937 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:31:07,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-11-24 00:31:07,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 723. [2024-11-24 00:31:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 600 states have (on average 1.2183333333333333) internal successors, (731), 608 states have internal predecessors, (731), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:31:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 923 transitions. [2024-11-24 00:31:07,351 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 923 transitions. Word has length 150 [2024-11-24 00:31:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:07,352 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 923 transitions. [2024-11-24 00:31:07,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:31:07,352 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 923 transitions. [2024-11-24 00:31:07,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:31:07,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:07,354 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] [2024-11-24 00:31:07,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:31:07,354 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:07,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:07,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1543605918, now seen corresponding path program 1 times [2024-11-24 00:31:07,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:07,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037324434] [2024-11-24 00:31:07,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:07,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:08,095 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 00:31:08,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:08,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037324434] [2024-11-24 00:31:08,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037324434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:08,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:08,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:31:08,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98626190] [2024-11-24 00:31:08,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:08,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:31:08,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:08,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:31:08,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:31:08,097 INFO L87 Difference]: Start difference. First operand 723 states and 923 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 00:31:08,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:08,692 INFO L93 Difference]: Finished difference Result 1535 states and 1958 transitions. [2024-11-24 00:31:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:31:08,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-24 00:31:08,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:08,697 INFO L225 Difference]: With dead ends: 1535 [2024-11-24 00:31:08,697 INFO L226 Difference]: Without dead ends: 836 [2024-11-24 00:31:08,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:31:08,699 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 68 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:08,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 842 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:31:08,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-24 00:31:08,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 723. [2024-11-24 00:31:08,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 600 states have (on average 1.215) internal successors, (729), 608 states have internal predecessors, (729), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:31:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 921 transitions. [2024-11-24 00:31:08,786 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 921 transitions. Word has length 150 [2024-11-24 00:31:08,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:08,786 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 921 transitions. [2024-11-24 00:31:08,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 00:31:08,787 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 921 transitions. [2024-11-24 00:31:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:31:08,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:08,788 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] [2024-11-24 00:31:08,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:31:08,789 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:08,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:08,789 INFO L85 PathProgramCache]: Analyzing trace with hash 529010348, now seen corresponding path program 1 times [2024-11-24 00:31:08,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:08,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196567459] [2024-11-24 00:31:08,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:08,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:10,302 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 00:31:10,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:10,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196567459] [2024-11-24 00:31:10,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196567459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:10,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:10,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:31:10,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405261452] [2024-11-24 00:31:10,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:10,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:31:10,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:10,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:31:10,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:31:10,304 INFO L87 Difference]: Start difference. First operand 723 states and 921 transitions. Second operand has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:31:10,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:10,854 INFO L93 Difference]: Finished difference Result 1499 states and 1907 transitions. [2024-11-24 00:31:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:31:10,855 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-24 00:31:10,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:10,859 INFO L225 Difference]: With dead ends: 1499 [2024-11-24 00:31:10,859 INFO L226 Difference]: Without dead ends: 800 [2024-11-24 00:31:10,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:31:10,861 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 114 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:10,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 674 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:31:10,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-24 00:31:10,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 716. [2024-11-24 00:31:10,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 593 states have (on average 1.2074198988195615) internal successors, (716), 601 states have internal predecessors, (716), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:31:10,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 908 transitions. [2024-11-24 00:31:10,944 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 908 transitions. Word has length 150 [2024-11-24 00:31:10,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:10,945 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 908 transitions. [2024-11-24 00:31:10,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:31:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 908 transitions. [2024-11-24 00:31:10,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 00:31:10,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:10,946 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] [2024-11-24 00:31:10,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:31:10,947 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:10,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:10,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1549969260, now seen corresponding path program 1 times [2024-11-24 00:31:10,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:10,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362765629] [2024-11-24 00:31:10,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:10,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:11,851 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 00:31:11,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:11,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362765629] [2024-11-24 00:31:11,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362765629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:11,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:11,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:31:11,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842326677] [2024-11-24 00:31:11,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:11,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:31:11,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:11,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:31:11,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:31:11,853 INFO L87 Difference]: Start difference. First operand 716 states and 908 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 00:31:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:12,499 INFO L93 Difference]: Finished difference Result 1512 states and 1915 transitions. [2024-11-24 00:31:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:31:12,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-24 00:31:12,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:12,502 INFO L225 Difference]: With dead ends: 1512 [2024-11-24 00:31:12,503 INFO L226 Difference]: Without dead ends: 820 [2024-11-24 00:31:12,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:31:12,505 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 60 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:12,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 920 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:31:12,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-24 00:31:12,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 712. [2024-11-24 00:31:12,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 589 states have (on average 1.2054329371816639) internal successors, (710), 597 states have internal predecessors, (710), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:31:12,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 902 transitions. [2024-11-24 00:31:12,589 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 902 transitions. Word has length 150 [2024-11-24 00:31:12,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:12,590 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 902 transitions. [2024-11-24 00:31:12,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 00:31:12,590 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 902 transitions. [2024-11-24 00:31:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 00:31:12,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:12,592 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 00:31:12,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:31:12,592 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:12,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:12,592 INFO L85 PathProgramCache]: Analyzing trace with hash 2053589535, now seen corresponding path program 1 times [2024-11-24 00:31:12,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:12,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241893114] [2024-11-24 00:31:12,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:12,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:13,013 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 00:31:13,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:13,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241893114] [2024-11-24 00:31:13,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241893114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:13,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:13,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:13,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176826678] [2024-11-24 00:31:13,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:13,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:31:13,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:13,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:31:13,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:31:13,014 INFO L87 Difference]: Start difference. First operand 712 states and 902 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 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 00:31:13,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:13,400 INFO L93 Difference]: Finished difference Result 1401 states and 1772 transitions. [2024-11-24 00:31:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:31:13,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 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 00:31:13,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:13,405 INFO L225 Difference]: With dead ends: 1401 [2024-11-24 00:31:13,405 INFO L226 Difference]: Without dead ends: 713 [2024-11-24 00:31:13,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:13,407 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 76 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:13,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 529 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:31:13,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-24 00:31:13,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 642. [2024-11-24 00:31:13,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 544 states have (on average 1.213235294117647) internal successors, (660), 551 states have internal predecessors, (660), 75 states have call successors, (75), 22 states have call predecessors, (75), 22 states have return successors, (75), 68 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 00:31:13,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 810 transitions. [2024-11-24 00:31:13,484 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 810 transitions. Word has length 151 [2024-11-24 00:31:13,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:13,484 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 810 transitions. [2024-11-24 00:31:13,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 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 00:31:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 810 transitions. [2024-11-24 00:31:13,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 00:31:13,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:13,486 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 00:31:13,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 00:31:13,487 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:13,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:13,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2009934197, now seen corresponding path program 1 times [2024-11-24 00:31:13,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:13,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529937377] [2024-11-24 00:31:13,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:13,685 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 00:31:13,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:13,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529937377] [2024-11-24 00:31:13,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529937377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:13,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:13,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:31:13,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783626325] [2024-11-24 00:31:13,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:13,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:31:13,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:13,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:31:13,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:31:13,688 INFO L87 Difference]: Start difference. First operand 642 states and 810 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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 00:31:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:13,963 INFO L93 Difference]: Finished difference Result 1404 states and 1766 transitions. [2024-11-24 00:31:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:31:13,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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 00:31:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:13,968 INFO L225 Difference]: With dead ends: 1404 [2024-11-24 00:31:13,968 INFO L226 Difference]: Without dead ends: 765 [2024-11-24 00:31:13,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:31:13,970 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 90 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:13,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 403 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:31:13,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-24 00:31:14,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 703. [2024-11-24 00:31:14,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 594 states have (on average 1.2053872053872055) internal successors, (716), 602 states have internal predecessors, (716), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-24 00:31:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 882 transitions. [2024-11-24 00:31:14,053 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 882 transitions. Word has length 151 [2024-11-24 00:31:14,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:14,053 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 882 transitions. [2024-11-24 00:31:14,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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 00:31:14,053 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 882 transitions. [2024-11-24 00:31:14,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 00:31:14,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:14,055 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 00:31:14,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 00:31:14,056 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:14,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:14,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1587232371, now seen corresponding path program 1 times [2024-11-24 00:31:14,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:14,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128312436] [2024-11-24 00:31:14,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:14,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:14,574 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 00:31:14,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:14,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128312436] [2024-11-24 00:31:14,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128312436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:14,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:14,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:31:14,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734292598] [2024-11-24 00:31:14,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:14,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:31:14,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:14,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:31:14,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:14,576 INFO L87 Difference]: Start difference. First operand 703 states and 882 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (19), 1 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 00:31:15,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:15,144 INFO L93 Difference]: Finished difference Result 1394 states and 1750 transitions. [2024-11-24 00:31:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:31:15,144 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (19), 1 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 00:31:15,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:15,148 INFO L225 Difference]: With dead ends: 1394 [2024-11-24 00:31:15,149 INFO L226 Difference]: Without dead ends: 694 [2024-11-24 00:31:15,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:31:15,150 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 144 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:15,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 502 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:31:15,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-24 00:31:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 676. [2024-11-24 00:31:15,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 567 states have (on average 1.2045855379188712) internal successors, (683), 575 states have internal predecessors, (683), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-24 00:31:15,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 849 transitions. [2024-11-24 00:31:15,247 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 849 transitions. Word has length 151 [2024-11-24 00:31:15,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:15,247 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 849 transitions. [2024-11-24 00:31:15,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (19), 1 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 00:31:15,247 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 849 transitions. [2024-11-24 00:31:15,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:31:15,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:15,249 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 00:31:15,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 00:31:15,249 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:15,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:15,250 INFO L85 PathProgramCache]: Analyzing trace with hash 325681333, now seen corresponding path program 1 times [2024-11-24 00:31:15,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:15,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814248793] [2024-11-24 00:31:15,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:15,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:16,317 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 00:31:16,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:16,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814248793] [2024-11-24 00:31:16,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814248793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:16,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:16,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:31:16,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173794240] [2024-11-24 00:31:16,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:16,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:31:16,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:16,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:31:16,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:16,319 INFO L87 Difference]: Start difference. First operand 676 states and 849 transitions. Second operand has 7 states, 5 states have (on average 12.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:31:16,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:16,761 INFO L93 Difference]: Finished difference Result 1765 states and 2209 transitions. [2024-11-24 00:31:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:31:16,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-11-24 00:31:16,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:16,766 INFO L225 Difference]: With dead ends: 1765 [2024-11-24 00:31:16,766 INFO L226 Difference]: Without dead ends: 1092 [2024-11-24 00:31:16,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:31:16,768 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 51 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:16,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 498 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:31:16,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-24 00:31:16,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 891. [2024-11-24 00:31:16,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 779 states have (on average 1.2015404364569962) internal successors, (936), 788 states have internal predecessors, (936), 85 states have call successors, (85), 26 states have call predecessors, (85), 26 states have return successors, (85), 76 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-24 00:31:16,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1106 transitions. [2024-11-24 00:31:16,868 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1106 transitions. Word has length 152 [2024-11-24 00:31:16,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:16,868 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1106 transitions. [2024-11-24 00:31:16,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:31:16,869 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1106 transitions. [2024-11-24 00:31:16,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:31:16,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:16,870 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 00:31:16,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 00:31:16,871 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:16,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:16,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1026745911, now seen corresponding path program 1 times [2024-11-24 00:31:16,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:16,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956932663] [2024-11-24 00:31:16,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:16,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:18,737 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 00:31:18,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:18,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956932663] [2024-11-24 00:31:18,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956932663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:18,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:18,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:31:18,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935506465] [2024-11-24 00:31:18,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:18,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:31:18,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:18,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:31:18,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:31:18,739 INFO L87 Difference]: Start difference. First operand 891 states and 1106 transitions. Second operand has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (19), 1 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 00:31:19,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:19,455 INFO L93 Difference]: Finished difference Result 1162 states and 1441 transitions. [2024-11-24 00:31:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:31:19,455 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (19), 1 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 152 [2024-11-24 00:31:19,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:19,459 INFO L225 Difference]: With dead ends: 1162 [2024-11-24 00:31:19,460 INFO L226 Difference]: Without dead ends: 1160 [2024-11-24 00:31:19,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:31:19,460 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 155 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:19,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 779 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:31:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-24 00:31:19,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 841. [2024-11-24 00:31:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 739 states have (on average 1.1975642760487144) internal successors, (885), 746 states have internal predecessors, (885), 77 states have call successors, (77), 24 states have call predecessors, (77), 24 states have return successors, (77), 70 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-24 00:31:19,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1039 transitions. [2024-11-24 00:31:19,562 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1039 transitions. Word has length 152 [2024-11-24 00:31:19,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:19,563 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1039 transitions. [2024-11-24 00:31:19,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (19), 1 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 00:31:19,563 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1039 transitions. [2024-11-24 00:31:19,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:31:19,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:19,565 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 00:31:19,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 00:31:19,565 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:19,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:19,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1028592953, now seen corresponding path program 1 times [2024-11-24 00:31:19,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:19,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473637649] [2024-11-24 00:31:19,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:19,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:19,806 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 00:31:19,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:19,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473637649] [2024-11-24 00:31:19,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473637649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:19,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:19,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:31:19,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850512883] [2024-11-24 00:31:19,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:19,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:31:19,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:19,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:31:19,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:31:19,808 INFO L87 Difference]: Start difference. First operand 841 states and 1039 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 00:31:20,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:20,130 INFO L93 Difference]: Finished difference Result 1735 states and 2143 transitions. [2024-11-24 00:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:31:20,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 00:31:20,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:20,133 INFO L225 Difference]: With dead ends: 1735 [2024-11-24 00:31:20,133 INFO L226 Difference]: Without dead ends: 897 [2024-11-24 00:31:20,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:20,135 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 85 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:20,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 500 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:31:20,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-24 00:31:20,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 896. [2024-11-24 00:31:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 772 states have (on average 1.1787564766839378) internal successors, (910), 780 states have internal predecessors, (910), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-24 00:31:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1098 transitions. [2024-11-24 00:31:20,237 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1098 transitions. Word has length 152 [2024-11-24 00:31:20,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:20,238 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1098 transitions. [2024-11-24 00:31:20,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 00:31:20,238 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1098 transitions. [2024-11-24 00:31:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:31:20,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:20,239 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 00:31:20,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 00:31:20,240 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:20,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:20,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1491366981, now seen corresponding path program 1 times [2024-11-24 00:31:20,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:20,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994625023] [2024-11-24 00:31:20,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:20,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:20,361 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-24 00:31:20,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:20,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994625023] [2024-11-24 00:31:20,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994625023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:20,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903991208] [2024-11-24 00:31:20,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:20,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:20,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:20,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:20,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:31:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:20,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:31:20,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:20,671 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 00:31:20,671 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:31:20,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903991208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:20,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:31:20,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-24 00:31:20,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956514069] [2024-11-24 00:31:20,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:20,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:31:20,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:20,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:31:20,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:31:20,673 INFO L87 Difference]: Start difference. First operand 896 states and 1098 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 00:31:20,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:20,819 INFO L93 Difference]: Finished difference Result 1762 states and 2161 transitions. [2024-11-24 00:31:20,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:31:20,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 00:31:20,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:20,824 INFO L225 Difference]: With dead ends: 1762 [2024-11-24 00:31:20,824 INFO L226 Difference]: Without dead ends: 920 [2024-11-24 00:31:20,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 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 00:31:20,826 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 548 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 00:31:20,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 548 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:31:20,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-24 00:31:20,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2024-11-24 00:31:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 796 states have (on average 1.1733668341708543) internal successors, (934), 804 states have internal predecessors, (934), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-24 00:31:20,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1122 transitions. [2024-11-24 00:31:20,950 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1122 transitions. Word has length 152 [2024-11-24 00:31:20,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:20,950 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1122 transitions. [2024-11-24 00:31:20,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 00:31:20,950 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1122 transitions. [2024-11-24 00:31:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:31:20,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:20,952 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 00:31:20,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:31:21,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-24 00:31:21,156 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:21,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash -820971643, now seen corresponding path program 1 times [2024-11-24 00:31:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365106266] [2024-11-24 00:31:21,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:21,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:22,852 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 00:31:22,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:22,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365106266] [2024-11-24 00:31:22,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365106266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:22,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:22,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:31:22,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639498350] [2024-11-24 00:31:22,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:22,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:31:22,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:22,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:31:22,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:31:22,855 INFO L87 Difference]: Start difference. First operand 920 states and 1122 transitions. Second operand has 14 states, 12 states have (on average 5.0) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:31:23,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:23,754 INFO L93 Difference]: Finished difference Result 1930 states and 2347 transitions. [2024-11-24 00:31:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:31:23,755 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.0) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-11-24 00:31:23,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:23,758 INFO L225 Difference]: With dead ends: 1930 [2024-11-24 00:31:23,758 INFO L226 Difference]: Without dead ends: 1064 [2024-11-24 00:31:23,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:31:23,760 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 54 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:23,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1381 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:31:23,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2024-11-24 00:31:23,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 972. [2024-11-24 00:31:23,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 848 states have (on average 1.1757075471698113) internal successors, (997), 856 states have internal predecessors, (997), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-24 00:31:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1185 transitions. [2024-11-24 00:31:23,874 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1185 transitions. Word has length 152 [2024-11-24 00:31:23,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:23,874 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1185 transitions. [2024-11-24 00:31:23,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.0) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:31:23,874 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1185 transitions. [2024-11-24 00:31:23,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:31:23,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:23,875 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 00:31:23,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 00:31:23,875 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:23,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:23,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1330444733, now seen corresponding path program 1 times [2024-11-24 00:31:23,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:23,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461499658] [2024-11-24 00:31:23,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:23,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:24,073 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 00:31:24,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:24,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461499658] [2024-11-24 00:31:24,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461499658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:24,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:24,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:31:24,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246942958] [2024-11-24 00:31:24,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:24,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:31:24,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:24,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:31:24,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:31:24,074 INFO L87 Difference]: Start difference. First operand 972 states and 1185 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 00:31:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:24,478 INFO L93 Difference]: Finished difference Result 1940 states and 2349 transitions. [2024-11-24 00:31:24,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:31:24,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 00:31:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:24,483 INFO L225 Difference]: With dead ends: 1940 [2024-11-24 00:31:24,483 INFO L226 Difference]: Without dead ends: 1022 [2024-11-24 00:31:24,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 00:31:24,484 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 59 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:24,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 434 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:31:24,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-11-24 00:31:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 916. [2024-11-24 00:31:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 792 states have (on average 1.167929292929293) internal successors, (925), 800 states have internal predecessors, (925), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-24 00:31:24,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1113 transitions. [2024-11-24 00:31:24,560 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1113 transitions. Word has length 152 [2024-11-24 00:31:24,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:24,560 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1113 transitions. [2024-11-24 00:31:24,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 00:31:24,560 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1113 transitions. [2024-11-24 00:31:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:31:24,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:24,562 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 00:31:24,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 00:31:24,562 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:24,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:24,563 INFO L85 PathProgramCache]: Analyzing trace with hash 392114053, now seen corresponding path program 1 times [2024-11-24 00:31:24,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:24,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460645676] [2024-11-24 00:31:24,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:24,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:25,066 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 00:31:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460645676] [2024-11-24 00:31:25,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460645676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:25,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:25,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:31:25,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855755372] [2024-11-24 00:31:25,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:25,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:31:25,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:25,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:31:25,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:31:25,067 INFO L87 Difference]: Start difference. First operand 916 states and 1113 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (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 00:31:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:25,660 INFO L93 Difference]: Finished difference Result 1970 states and 2391 transitions. [2024-11-24 00:31:25,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:31:25,660 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (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 00:31:25,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:25,665 INFO L225 Difference]: With dead ends: 1970 [2024-11-24 00:31:25,665 INFO L226 Difference]: Without dead ends: 1108 [2024-11-24 00:31:25,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:31:25,667 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 117 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:25,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1660 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:31:25,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-24 00:31:25,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1021. [2024-11-24 00:31:25,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 873 states have (on average 1.1557846506300113) internal successors, (1009), 882 states have internal predecessors, (1009), 113 states have call successors, (113), 34 states have call predecessors, (113), 34 states have return successors, (113), 104 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 00:31:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1235 transitions. [2024-11-24 00:31:25,776 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1235 transitions. Word has length 152 [2024-11-24 00:31:25,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:25,776 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1235 transitions. [2024-11-24 00:31:25,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (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 00:31:25,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1235 transitions. [2024-11-24 00:31:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:31:25,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:25,778 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] [2024-11-24 00:31:25,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 00:31:25,778 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:25,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:25,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1671977731, now seen corresponding path program 1 times [2024-11-24 00:31:25,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:25,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921870273] [2024-11-24 00:31:25,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:25,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:26,152 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 00:31:26,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:26,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921870273] [2024-11-24 00:31:26,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921870273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:26,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:26,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:26,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781951763] [2024-11-24 00:31:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:26,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:31:26,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:26,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:31:26,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:31:26,154 INFO L87 Difference]: Start difference. First operand 1021 states and 1235 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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 00:31:26,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:26,563 INFO L93 Difference]: Finished difference Result 2072 states and 2492 transitions. [2024-11-24 00:31:26,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:31:26,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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 00:31:26,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:26,569 INFO L225 Difference]: With dead ends: 2072 [2024-11-24 00:31:26,569 INFO L226 Difference]: Without dead ends: 1105 [2024-11-24 00:31:26,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:26,575 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 45 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:26,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 545 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:31:26,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-11-24 00:31:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 999. [2024-11-24 00:31:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 851 states have (on average 1.1480611045828437) internal successors, (977), 860 states have internal predecessors, (977), 113 states have call successors, (113), 34 states have call predecessors, (113), 34 states have return successors, (113), 104 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 00:31:26,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1203 transitions. [2024-11-24 00:31:26,716 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1203 transitions. Word has length 152 [2024-11-24 00:31:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:26,716 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1203 transitions. [2024-11-24 00:31:26,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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 00:31:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1203 transitions. [2024-11-24 00:31:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 00:31:26,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:26,718 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 00:31:26,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 00:31:26,719 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:26,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:26,719 INFO L85 PathProgramCache]: Analyzing trace with hash 867128544, now seen corresponding path program 1 times [2024-11-24 00:31:26,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:26,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502677609] [2024-11-24 00:31:26,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:26,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:27,216 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 00:31:27,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:27,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502677609] [2024-11-24 00:31:27,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502677609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:27,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:27,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:31:27,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414138938] [2024-11-24 00:31:27,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:27,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:31:27,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:27,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:31:27,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:27,218 INFO L87 Difference]: Start difference. First operand 999 states and 1203 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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 00:31:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:27,881 INFO L93 Difference]: Finished difference Result 2355 states and 2779 transitions. [2024-11-24 00:31:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:31:27,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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 00:31:27,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:27,886 INFO L225 Difference]: With dead ends: 2355 [2024-11-24 00:31:27,886 INFO L226 Difference]: Without dead ends: 1410 [2024-11-24 00:31:27,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:31:27,888 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 43 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:27,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 556 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:31:27,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-24 00:31:28,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1323. [2024-11-24 00:31:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1139 states have (on average 1.112379280070237) internal successors, (1267), 1154 states have internal predecessors, (1267), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-24 00:31:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1541 transitions. [2024-11-24 00:31:28,040 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1541 transitions. Word has length 154 [2024-11-24 00:31:28,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:28,041 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1541 transitions. [2024-11-24 00:31:28,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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 00:31:28,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1541 transitions. [2024-11-24 00:31:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 00:31:28,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:28,042 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 00:31:28,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 00:31:28,042 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:28,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:28,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1963407648, now seen corresponding path program 1 times [2024-11-24 00:31:28,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:28,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983071274] [2024-11-24 00:31:28,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:28,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:28,331 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 00:31:28,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:28,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983071274] [2024-11-24 00:31:28,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983071274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:28,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:28,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:31:28,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129231175] [2024-11-24 00:31:28,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:28,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:31:28,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:28,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:31:28,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:28,332 INFO L87 Difference]: Start difference. First operand 1323 states and 1541 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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 00:31:28,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:28,897 INFO L93 Difference]: Finished difference Result 3032 states and 3519 transitions. [2024-11-24 00:31:28,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:31:28,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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 00:31:28,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:28,904 INFO L225 Difference]: With dead ends: 3032 [2024-11-24 00:31:28,904 INFO L226 Difference]: Without dead ends: 1763 [2024-11-24 00:31:28,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:31:28,907 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 51 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:28,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 629 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:31:28,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-11-24 00:31:29,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1488. [2024-11-24 00:31:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1304 states have (on average 1.10659509202454) internal successors, (1443), 1319 states have internal predecessors, (1443), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-24 00:31:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1717 transitions. [2024-11-24 00:31:29,038 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1717 transitions. Word has length 154 [2024-11-24 00:31:29,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:29,039 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 1717 transitions. [2024-11-24 00:31:29,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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 00:31:29,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1717 transitions. [2024-11-24 00:31:29,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 00:31:29,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:29,041 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 00:31:29,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 00:31:29,041 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:29,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1376601634, now seen corresponding path program 1 times [2024-11-24 00:31:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:29,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839586937] [2024-11-24 00:31:29,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:29,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:30,320 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 00:31:30,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:30,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839586937] [2024-11-24 00:31:30,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839586937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:30,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:30,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:31:30,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650546309] [2024-11-24 00:31:30,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:30,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:31:30,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:30,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:31:30,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:31:30,322 INFO L87 Difference]: Start difference. First operand 1488 states and 1717 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 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 00:31:31,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:31,191 INFO L93 Difference]: Finished difference Result 3177 states and 3649 transitions. [2024-11-24 00:31:31,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:31:31,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 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 154 [2024-11-24 00:31:31,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:31,209 INFO L225 Difference]: With dead ends: 3177 [2024-11-24 00:31:31,212 INFO L226 Difference]: Without dead ends: 1743 [2024-11-24 00:31:31,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:31:31,215 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 43 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:31,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 777 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:31:31,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-24 00:31:31,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1482. [2024-11-24 00:31:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1298 states have (on average 1.1070878274268106) internal successors, (1437), 1313 states have internal predecessors, (1437), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-24 00:31:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1711 transitions. [2024-11-24 00:31:31,422 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1711 transitions. Word has length 154 [2024-11-24 00:31:31,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:31,422 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1711 transitions. [2024-11-24 00:31:31,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 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 00:31:31,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1711 transitions. [2024-11-24 00:31:31,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 00:31:31,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:31,424 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 00:31:31,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-24 00:31:31,424 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:31,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1383117117, now seen corresponding path program 1 times [2024-11-24 00:31:31,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:31,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863767616] [2024-11-24 00:31:31,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:31,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:31,812 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 00:31:31,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:31,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863767616] [2024-11-24 00:31:31,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863767616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:31,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:31,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:31:31,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610474020] [2024-11-24 00:31:31,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:31,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:31:31,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:31,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:31:31,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:31,813 INFO L87 Difference]: Start difference. First operand 1482 states and 1711 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 00:31:32,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:32,604 INFO L93 Difference]: Finished difference Result 4327 states and 4989 transitions. [2024-11-24 00:31:32,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:31:32,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 00:31:32,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:32,609 INFO L225 Difference]: With dead ends: 4327 [2024-11-24 00:31:32,609 INFO L226 Difference]: Without dead ends: 1518 [2024-11-24 00:31:32,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:31:32,613 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 103 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:32,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1049 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:31:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-11-24 00:31:32,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1491. [2024-11-24 00:31:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1307 states have (on average 1.0864575363427698) internal successors, (1420), 1322 states have internal predecessors, (1420), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-24 00:31:32,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1694 transitions. [2024-11-24 00:31:32,783 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1694 transitions. Word has length 155 [2024-11-24 00:31:32,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:32,783 INFO L471 AbstractCegarLoop]: Abstraction has 1491 states and 1694 transitions. [2024-11-24 00:31:32,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 00:31:32,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1694 transitions. [2024-11-24 00:31:32,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 00:31:32,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:32,786 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 00:31:32,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-24 00:31:32,786 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:32,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash 540110917, now seen corresponding path program 1 times [2024-11-24 00:31:32,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:32,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198452580] [2024-11-24 00:31:32,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:32,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:32,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496901780] [2024-11-24 00:31:32,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:32,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:32,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:32,957 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:32,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:31:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:33,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-24 00:31:33,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:33,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:33,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:33,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:33,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:33,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:33,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:33,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:33,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2024-11-24 00:31:33,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:31:33,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 20 [2024-11-24 00:31:33,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:31:33,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 58 [2024-11-24 00:31:34,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:31:34,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 144 treesize of output 44 [2024-11-24 00:31:34,426 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 00:31:34,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:31:34,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:34,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198452580] [2024-11-24 00:31:34,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:34,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496901780] [2024-11-24 00:31:34,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496901780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:34,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:34,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:31:34,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263962455] [2024-11-24 00:31:34,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:34,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:31:34,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:34,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:31:34,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:34,430 INFO L87 Difference]: Start difference. First operand 1491 states and 1694 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 00:31:35,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:35,489 INFO L93 Difference]: Finished difference Result 2958 states and 3348 transitions. [2024-11-24 00:31:35,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:31:35,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 00:31:35,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:35,494 INFO L225 Difference]: With dead ends: 2958 [2024-11-24 00:31:35,494 INFO L226 Difference]: Without dead ends: 1521 [2024-11-24 00:31:35,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:31:35,496 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 113 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:35,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 515 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:31:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-24 00:31:35,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1464. [2024-11-24 00:31:35,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1280 states have (on average 1.08125) internal successors, (1384), 1295 states have internal predecessors, (1384), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-24 00:31:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1658 transitions. [2024-11-24 00:31:35,688 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1658 transitions. Word has length 155 [2024-11-24 00:31:35,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:35,688 INFO L471 AbstractCegarLoop]: Abstraction has 1464 states and 1658 transitions. [2024-11-24 00:31:35,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 00:31:35,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1658 transitions. [2024-11-24 00:31:35,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 00:31:35,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:31:35,689 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 00:31:35,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:31:35,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-24 00:31:35,890 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:31:35,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:31:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash 686579077, now seen corresponding path program 1 times [2024-11-24 00:31:35,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:31:35,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867624832] [2024-11-24 00:31:35,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:35,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:31:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:31:36,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1833129498] [2024-11-24 00:31:36,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:36,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:31:36,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:31:36,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:31:36,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:31:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:36,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-24 00:31:36,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:36,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:36,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:36,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:36,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:36,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:36,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:36,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:36,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:31:36,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:31:36,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:31:36,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 39 [2024-11-24 00:31:37,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:31:37,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 131 treesize of output 41 [2024-11-24 00:31:37,199 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 00:31:37,199 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:31:37,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:31:37,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867624832] [2024-11-24 00:31:37,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:31:37,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833129498] [2024-11-24 00:31:37,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833129498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:31:37,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:31:37,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:31:37,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593246632] [2024-11-24 00:31:37,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:31:37,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:31:37,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:31:37,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:31:37,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:31:37,201 INFO L87 Difference]: Start difference. First operand 1464 states and 1658 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 00:31:38,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:31:38,487 INFO L93 Difference]: Finished difference Result 2875 states and 3242 transitions. [2024-11-24 00:31:38,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:31:38,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 00:31:38,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:31:38,490 INFO L225 Difference]: With dead ends: 2875 [2024-11-24 00:31:38,490 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:31:38,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:31:38,492 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 91 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:31:38,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 450 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:31:38,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:31:38,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:31:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:31:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:31:38,494 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2024-11-24 00:31:38,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:31:38,494 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:31:38,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 00:31:38,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:31:38,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:31:38,496 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:31:38,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:31:38,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168ede78-0f8f-4373-a6da-463d83a371fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-24 00:31:38,700 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:38,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:32:31,000 WARN L286 SmtUtils]: Spent 48.93s on a formula simplification. DAG size of input: 220 DAG size of output: 251 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:33:42,334 WARN L286 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 230 DAG size of output: 263 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:34:54,146 WARN L286 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 230 DAG size of output: 263 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:35:46,123 WARN L286 SmtUtils]: Spent 50.45s on a formula simplification. DAG size of input: 183 DAG size of output: 192 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:36:30,993 WARN L286 SmtUtils]: Spent 43.25s on a formula simplification. DAG size of input: 214 DAG size of output: 247 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:37:02,729 WARN L286 SmtUtils]: Spent 31.72s on a formula simplification. DAG size of input: 173 DAG size of output: 180 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:38:31,697 WARN L286 SmtUtils]: Spent 1.41m on a formula simplification. DAG size of input: 169 DAG size of output: 179 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:39:48,330 WARN L286 SmtUtils]: Spent 1.27m on a formula simplification. DAG size of input: 226 DAG size of output: 257 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:40:44,810 WARN L286 SmtUtils]: Spent 56.28s on a formula simplification. DAG size of input: 163 DAG size of output: 173 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:41:35,230 WARN L286 SmtUtils]: Spent 50.40s on a formula simplification. DAG size of input: 179 DAG size of output: 186 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:42:29,620 WARN L286 SmtUtils]: Spent 54.23s on a formula simplification. DAG size of input: 163 DAG size of output: 173 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:43:02,323 WARN L286 SmtUtils]: Spent 32.70s on a formula simplification. DAG size of input: 173 DAG size of output: 180 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:44:18,406 WARN L286 SmtUtils]: Spent 1.25m on a formula simplification. DAG size of input: 226 DAG size of output: 257 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)