./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem06_label51.c --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_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/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_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem06_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/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_3ecc7524-7e0d-4eba-bc33-652304e1fc34/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 d2321aed76e055f4aaa6eb76f644a08ba2a93e78b93039d713ddf69a43cfc57e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:31:34,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:31:34,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:31:35,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:31:35,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:31:35,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:31:35,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:31:35,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:31:35,040 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:31:35,040 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:31:35,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:31:35,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:31:35,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:31:35,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:31:35,041 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:31:35,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:31:35,043 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:31:35,044 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:31:35,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:31:35,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:31:35,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:31:35,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:31:35,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:31:35,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:31:35,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:31:35,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:31:35,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:31:35,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:31:35,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:31:35,046 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:31:35,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:31:35,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:31:35,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:31:35,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:31:35,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:31:35,047 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:31:35,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:31:35,047 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_3ecc7524-7e0d-4eba-bc33-652304e1fc34/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 -> d2321aed76e055f4aaa6eb76f644a08ba2a93e78b93039d713ddf69a43cfc57e [2024-11-23 23:31:35,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:31:35,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:31:35,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:31:35,366 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:31:35,367 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:31:35,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/eca-rers2012/Problem06_label51.c [2024-11-23 23:31:38,336 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/data/75368f2c6/3be7a62da1e94e08be10afb5c6fd2506/FLAGdf8e6759f [2024-11-23 23:31:39,102 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:31:39,103 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/sv-benchmarks/c/eca-rers2012/Problem06_label51.c [2024-11-23 23:31:39,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/data/75368f2c6/3be7a62da1e94e08be10afb5c6fd2506/FLAGdf8e6759f [2024-11-23 23:31:39,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/data/75368f2c6/3be7a62da1e94e08be10afb5c6fd2506 [2024-11-23 23:31:39,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:31:39,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:31:39,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:31:39,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:31:39,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:31:39,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:39" (1/1) ... [2024-11-23 23:31:39,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488d5790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:39, skipping insertion in model container [2024-11-23 23:31:39,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:39" (1/1) ... [2024-11-23 23:31:39,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:31:41,174 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_3ecc7524-7e0d-4eba-bc33-652304e1fc34/sv-benchmarks/c/eca-rers2012/Problem06_label51.c[336674,336687] [2024-11-23 23:31:41,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:31:41,216 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:31:42,204 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_3ecc7524-7e0d-4eba-bc33-652304e1fc34/sv-benchmarks/c/eca-rers2012/Problem06_label51.c[336674,336687] [2024-11-23 23:31:42,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:31:42,364 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:31:42,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42 WrapperNode [2024-11-23 23:31:42,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:31:42,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:31:42,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:31:42,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:31:42,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:42,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:42,918 INFO L138 Inliner]: procedures = 18, calls = 12, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 10177 [2024-11-23 23:31:42,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:31:42,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:31:42,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:31:42,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:31:42,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:42,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,183 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:31:43,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,431 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:31:43,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:31:43,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:31:43,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:31:43,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (1/1) ... [2024-11-23 23:31:43,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:31:43,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:31:43,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:31:43,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ecc7524-7e0d-4eba-bc33-652304e1fc34/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:31:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:31:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:31:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:31:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:31:43,843 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:31:43,845 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:31:53,648 INFO L? ?]: Removed 929 outVars from TransFormulas that were not future-live. [2024-11-23 23:31:53,649 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:31:53,704 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:31:53,704 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:31:53,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:53 BoogieIcfgContainer [2024-11-23 23:31:53,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:31:53,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:31:53,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:31:53,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:31:53,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:31:39" (1/3) ... [2024-11-23 23:31:53,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560df095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:53, skipping insertion in model container [2024-11-23 23:31:53,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:42" (2/3) ... [2024-11-23 23:31:53,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560df095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:53, skipping insertion in model container [2024-11-23 23:31:53,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:53" (3/3) ... [2024-11-23 23:31:53,718 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem06_label51.c [2024-11-23 23:31:53,741 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:31:53,745 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem06_label51.c that has 1 procedures, 1290 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:31:53,870 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:31:53,890 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;@141dcff4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:31:53,891 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:31:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 1288 states have (on average 1.8571428571428572) internal successors, (2392), 1289 states have internal predecessors, (2392), 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) [2024-11-23 23:31:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 982 [2024-11-23 23:31:54,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:54,005 INFO L218 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:54,006 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:54,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash 265722229, now seen corresponding path program 1 times [2024-11-23 23:31:54,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:54,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668655433] [2024-11-23 23:31:54,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:54,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:31:57,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:57,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668655433] [2024-11-23 23:31:57,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668655433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:57,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:57,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:31:57,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080274020] [2024-11-23 23:31:57,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:57,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:31:57,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:57,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:31:57,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:31:57,403 INFO L87 Difference]: Start difference. First operand has 1290 states, 1288 states have (on average 1.8571428571428572) internal successors, (2392), 1289 states have internal predecessors, (2392), 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) Second operand has 3 states, 3 states have (on average 327.0) internal successors, (981), 2 states have internal predecessors, (981), 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) [2024-11-23 23:32:03,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:03,827 INFO L93 Difference]: Finished difference Result 3664 states and 6878 transitions. [2024-11-23 23:32:03,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:32:03,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 327.0) internal successors, (981), 2 states have internal predecessors, (981), 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) Word has length 981 [2024-11-23 23:32:03,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:03,875 INFO L225 Difference]: With dead ends: 3664 [2024-11-23 23:32:03,875 INFO L226 Difference]: Without dead ends: 2310 [2024-11-23 23:32:03,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:03,889 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 563 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 1120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:03,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 989 Invalid, 4087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1120 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-23 23:32:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2024-11-23 23:32:04,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2301. [2024-11-23 23:32:04,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2300 states have (on average 1.6908695652173913) internal successors, (3889), 2300 states have internal predecessors, (3889), 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) [2024-11-23 23:32:04,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3889 transitions. [2024-11-23 23:32:04,078 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3889 transitions. Word has length 981 [2024-11-23 23:32:04,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:04,084 INFO L471 AbstractCegarLoop]: Abstraction has 2301 states and 3889 transitions. [2024-11-23 23:32:04,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.0) internal successors, (981), 2 states have internal predecessors, (981), 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) [2024-11-23 23:32:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3889 transitions. [2024-11-23 23:32:04,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2024-11-23 23:32:04,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:04,134 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:04,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:32:04,135 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:04,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:04,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2018566392, now seen corresponding path program 1 times [2024-11-23 23:32:04,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:04,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993984696] [2024-11-23 23:32:04,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:04,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:32:06,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:06,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993984696] [2024-11-23 23:32:06,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993984696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:06,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:32:06,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:32:06,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785421034] [2024-11-23 23:32:06,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:06,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:32:06,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:06,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:32:06,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:06,545 INFO L87 Difference]: Start difference. First operand 2301 states and 3889 transitions. Second operand has 3 states, 3 states have (on average 329.6666666666667) internal successors, (989), 2 states have internal predecessors, (989), 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) [2024-11-23 23:32:12,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:12,393 INFO L93 Difference]: Finished difference Result 5632 states and 9380 transitions. [2024-11-23 23:32:12,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:32:12,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 329.6666666666667) internal successors, (989), 2 states have internal predecessors, (989), 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) Word has length 989 [2024-11-23 23:32:12,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:12,410 INFO L225 Difference]: With dead ends: 5632 [2024-11-23 23:32:12,410 INFO L226 Difference]: Without dead ends: 3333 [2024-11-23 23:32:12,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:12,417 INFO L435 NwaCegarLoop]: 943 mSDtfsCounter, 1199 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 3007 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 3663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 3007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:12,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 1131 Invalid, 3663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 3007 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-23 23:32:12,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2024-11-23 23:32:12,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 3324. [2024-11-23 23:32:12,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 3323 states have (on average 1.5865182064399639) internal successors, (5272), 3323 states have internal predecessors, (5272), 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) [2024-11-23 23:32:12,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 5272 transitions. [2024-11-23 23:32:12,513 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 5272 transitions. Word has length 989 [2024-11-23 23:32:12,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:12,513 INFO L471 AbstractCegarLoop]: Abstraction has 3324 states and 5272 transitions. [2024-11-23 23:32:12,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.6666666666667) internal successors, (989), 2 states have internal predecessors, (989), 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) [2024-11-23 23:32:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 5272 transitions. [2024-11-23 23:32:12,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2024-11-23 23:32:12,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:12,529 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:12,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:32:12,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:12,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:12,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1342206863, now seen corresponding path program 1 times [2024-11-23 23:32:12,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:12,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256122297] [2024-11-23 23:32:12,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:12,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:14,176 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:32:14,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:14,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256122297] [2024-11-23 23:32:14,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256122297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:14,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:32:14,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:32:14,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299163048] [2024-11-23 23:32:14,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:14,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:32:14,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:14,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:32:14,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:14,181 INFO L87 Difference]: Start difference. First operand 3324 states and 5272 transitions. Second operand has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 2 states have internal predecessors, (986), 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) [2024-11-23 23:32:16,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:16,189 INFO L93 Difference]: Finished difference Result 9949 states and 15793 transitions. [2024-11-23 23:32:16,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:32:16,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 2 states have internal predecessors, (986), 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) Word has length 993 [2024-11-23 23:32:16,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:16,214 INFO L225 Difference]: With dead ends: 9949 [2024-11-23 23:32:16,214 INFO L226 Difference]: Without dead ends: 6627 [2024-11-23 23:32:16,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:16,220 INFO L435 NwaCegarLoop]: 1736 mSDtfsCounter, 2096 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 3346 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:16,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2096 Valid, 3346 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 23:32:16,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6627 states. [2024-11-23 23:32:16,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6627 to 6623. [2024-11-23 23:32:16,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 6622 states have (on average 1.5850196315312595) internal successors, (10496), 6622 states have internal predecessors, (10496), 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) [2024-11-23 23:32:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 10496 transitions. [2024-11-23 23:32:16,373 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 10496 transitions. Word has length 993 [2024-11-23 23:32:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:16,374 INFO L471 AbstractCegarLoop]: Abstraction has 6623 states and 10496 transitions. [2024-11-23 23:32:16,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 2 states have internal predecessors, (986), 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) [2024-11-23 23:32:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 10496 transitions. [2024-11-23 23:32:16,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2024-11-23 23:32:16,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:16,394 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:16,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:32:16,395 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:16,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:16,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1731214977, now seen corresponding path program 1 times [2024-11-23 23:32:16,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:16,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040861519] [2024-11-23 23:32:16,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:16,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:17,528 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:32:17,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:17,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040861519] [2024-11-23 23:32:17,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040861519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:17,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:32:17,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:32:17,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093735775] [2024-11-23 23:32:17,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:17,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:32:17,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:17,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:32:17,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:17,533 INFO L87 Difference]: Start difference. First operand 6623 states and 10496 transitions. Second operand has 3 states, 3 states have (on average 331.0) internal successors, (993), 2 states have internal predecessors, (993), 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) [2024-11-23 23:32:22,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:22,716 INFO L93 Difference]: Finished difference Result 19385 states and 30869 transitions. [2024-11-23 23:32:22,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:32:22,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 331.0) internal successors, (993), 2 states have internal predecessors, (993), 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) Word has length 993 [2024-11-23 23:32:22,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:22,756 INFO L225 Difference]: With dead ends: 19385 [2024-11-23 23:32:22,757 INFO L226 Difference]: Without dead ends: 12764 [2024-11-23 23:32:22,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:22,768 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 1214 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 3325 mSolverCounterSat, 1044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 4369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 3325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:22,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 906 Invalid, 4369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1044 Valid, 3325 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-23 23:32:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12764 states. [2024-11-23 23:32:22,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12764 to 12634. [2024-11-23 23:32:23,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12634 states, 12633 states have (on average 1.5775350273094277) internal successors, (19929), 12633 states have internal predecessors, (19929), 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) [2024-11-23 23:32:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12634 states to 12634 states and 19929 transitions. [2024-11-23 23:32:23,048 INFO L78 Accepts]: Start accepts. Automaton has 12634 states and 19929 transitions. Word has length 993 [2024-11-23 23:32:23,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:23,048 INFO L471 AbstractCegarLoop]: Abstraction has 12634 states and 19929 transitions. [2024-11-23 23:32:23,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.0) internal successors, (993), 2 states have internal predecessors, (993), 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) [2024-11-23 23:32:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 12634 states and 19929 transitions. [2024-11-23 23:32:23,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2024-11-23 23:32:23,079 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:23,080 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:23,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:32:23,081 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:23,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:23,082 INFO L85 PathProgramCache]: Analyzing trace with hash 815061110, now seen corresponding path program 1 times [2024-11-23 23:32:23,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:23,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553594975] [2024-11-23 23:32:23,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:23,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:24,221 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:32:24,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:24,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553594975] [2024-11-23 23:32:24,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553594975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:24,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:32:24,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:32:24,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893331559] [2024-11-23 23:32:24,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:24,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:32:24,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:24,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:32:24,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:24,226 INFO L87 Difference]: Start difference. First operand 12634 states and 19929 transitions. Second operand has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 2 states have internal predecessors, (998), 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) [2024-11-23 23:32:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:29,053 INFO L93 Difference]: Finished difference Result 37352 states and 59064 transitions. [2024-11-23 23:32:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:32:29,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 2 states have internal predecessors, (998), 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) Word has length 1005 [2024-11-23 23:32:29,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:29,115 INFO L225 Difference]: With dead ends: 37352 [2024-11-23 23:32:29,115 INFO L226 Difference]: Without dead ends: 24720 [2024-11-23 23:32:29,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:29,132 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 1258 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 3097 mSolverCounterSat, 924 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 4021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 924 IncrementalHoareTripleChecker+Valid, 3097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:29,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 1050 Invalid, 4021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [924 Valid, 3097 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-23 23:32:29,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24720 states. [2024-11-23 23:32:29,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24720 to 24654. [2024-11-23 23:32:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24654 states, 24653 states have (on average 1.4455441528414392) internal successors, (35637), 24653 states have internal predecessors, (35637), 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) [2024-11-23 23:32:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24654 states to 24654 states and 35637 transitions. [2024-11-23 23:32:29,804 INFO L78 Accepts]: Start accepts. Automaton has 24654 states and 35637 transitions. Word has length 1005 [2024-11-23 23:32:29,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:29,804 INFO L471 AbstractCegarLoop]: Abstraction has 24654 states and 35637 transitions. [2024-11-23 23:32:29,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 2 states have internal predecessors, (998), 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) [2024-11-23 23:32:29,805 INFO L276 IsEmpty]: Start isEmpty. Operand 24654 states and 35637 transitions. [2024-11-23 23:32:29,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1022 [2024-11-23 23:32:29,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:29,876 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:29,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:32:29,877 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:29,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:29,879 INFO L85 PathProgramCache]: Analyzing trace with hash 120665046, now seen corresponding path program 1 times [2024-11-23 23:32:29,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:29,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584792567] [2024-11-23 23:32:29,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:29,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:30,872 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:32:30,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:30,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584792567] [2024-11-23 23:32:30,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584792567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:30,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:32:30,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:32:30,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670346149] [2024-11-23 23:32:30,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:30,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:32:30,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:30,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:32:30,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:30,879 INFO L87 Difference]: Start difference. First operand 24654 states and 35637 transitions. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 2 states have internal predecessors, (1021), 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) [2024-11-23 23:32:36,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:36,239 INFO L93 Difference]: Finished difference Result 73264 states and 105980 transitions. [2024-11-23 23:32:36,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:32:36,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 2 states have internal predecessors, (1021), 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) Word has length 1021 [2024-11-23 23:32:36,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:36,374 INFO L225 Difference]: With dead ends: 73264 [2024-11-23 23:32:36,375 INFO L226 Difference]: Without dead ends: 48612 [2024-11-23 23:32:36,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:36,403 INFO L435 NwaCegarLoop]: 829 mSDtfsCounter, 1436 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 1309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 4031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:36,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 972 Invalid, 4031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1309 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-23 23:32:36,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48612 states. [2024-11-23 23:32:37,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48612 to 48578. [2024-11-23 23:32:37,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48578 states, 48577 states have (on average 1.346048541490829) internal successors, (65387), 48577 states have internal predecessors, (65387), 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) [2024-11-23 23:32:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48578 states to 48578 states and 65387 transitions. [2024-11-23 23:32:37,368 INFO L78 Accepts]: Start accepts. Automaton has 48578 states and 65387 transitions. Word has length 1021 [2024-11-23 23:32:37,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:37,368 INFO L471 AbstractCegarLoop]: Abstraction has 48578 states and 65387 transitions. [2024-11-23 23:32:37,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 2 states have internal predecessors, (1021), 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) [2024-11-23 23:32:37,369 INFO L276 IsEmpty]: Start isEmpty. Operand 48578 states and 65387 transitions. [2024-11-23 23:32:37,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2024-11-23 23:32:37,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:37,453 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:37,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:32:37,454 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:37,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:37,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2118777731, now seen corresponding path program 1 times [2024-11-23 23:32:37,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:37,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140582174] [2024-11-23 23:32:37,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:37,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:39,353 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-23 23:32:39,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:39,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140582174] [2024-11-23 23:32:39,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140582174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:39,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:32:39,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:32:39,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94198771] [2024-11-23 23:32:39,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:39,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:32:39,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:39,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:32:39,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:39,357 INFO L87 Difference]: Start difference. First operand 48578 states and 65387 transitions. Second operand has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 2 states have internal predecessors, (991), 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) [2024-11-23 23:32:44,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:44,843 INFO L93 Difference]: Finished difference Result 129219 states and 171321 transitions. [2024-11-23 23:32:44,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:32:44,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 2 states have internal predecessors, (991), 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) Word has length 1034 [2024-11-23 23:32:44,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:44,956 INFO L225 Difference]: With dead ends: 129219 [2024-11-23 23:32:44,956 INFO L226 Difference]: Without dead ends: 80643 [2024-11-23 23:32:44,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:32:44,997 INFO L435 NwaCegarLoop]: 1077 mSDtfsCounter, 1323 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 3627 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 3841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 3627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:44,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 1294 Invalid, 3841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 3627 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-23 23:32:45,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80643 states. [2024-11-23 23:32:46,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80643 to 80607. [2024-11-23 23:32:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80607 states, 80606 states have (on average 1.3097039922586409) internal successors, (105570), 80606 states have internal predecessors, (105570), 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) [2024-11-23 23:32:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80607 states to 80607 states and 105570 transitions. [2024-11-23 23:32:46,430 INFO L78 Accepts]: Start accepts. Automaton has 80607 states and 105570 transitions. Word has length 1034 [2024-11-23 23:32:46,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:46,430 INFO L471 AbstractCegarLoop]: Abstraction has 80607 states and 105570 transitions. [2024-11-23 23:32:46,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 2 states have internal predecessors, (991), 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) [2024-11-23 23:32:46,431 INFO L276 IsEmpty]: Start isEmpty. Operand 80607 states and 105570 transitions. [2024-11-23 23:32:46,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2024-11-23 23:32:46,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:46,543 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:46,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:32:46,543 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:46,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:46,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1327083254, now seen corresponding path program 1 times [2024-11-23 23:32:46,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:46,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993148579] [2024-11-23 23:32:46,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:32:46,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:32:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-23 23:32:48,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:32:48,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993148579] [2024-11-23 23:32:48,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993148579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:32:48,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:32:48,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:32:48,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270974561] [2024-11-23 23:32:48,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:32:48,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:32:48,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:32:48,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:32:48,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:32:48,099 INFO L87 Difference]: Start difference. First operand 80607 states and 105570 transitions. Second operand has 4 states, 4 states have (on average 257.0) internal successors, (1028), 3 states have internal predecessors, (1028), 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) [2024-11-23 23:32:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:32:55,767 INFO L93 Difference]: Finished difference Result 225250 states and 291820 transitions. [2024-11-23 23:32:55,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:32:55,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 257.0) internal successors, (1028), 3 states have internal predecessors, (1028), 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) Word has length 1071 [2024-11-23 23:32:55,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:32:55,992 INFO L225 Difference]: With dead ends: 225250 [2024-11-23 23:32:55,993 INFO L226 Difference]: Without dead ends: 144645 [2024-11-23 23:32:56,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:32:56,042 INFO L435 NwaCegarLoop]: 982 mSDtfsCounter, 3943 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 4742 mSolverCounterSat, 1017 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3943 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 5759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1017 IncrementalHoareTripleChecker+Valid, 4742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:32:56,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3943 Valid, 1314 Invalid, 5759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1017 Valid, 4742 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-23 23:32:56,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144645 states. [2024-11-23 23:32:58,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144645 to 144552. [2024-11-23 23:32:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144552 states, 144551 states have (on average 1.2861204695920472) internal successors, (185910), 144551 states have internal predecessors, (185910), 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) [2024-11-23 23:32:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144552 states to 144552 states and 185910 transitions. [2024-11-23 23:32:58,762 INFO L78 Accepts]: Start accepts. Automaton has 144552 states and 185910 transitions. Word has length 1071 [2024-11-23 23:32:58,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:32:58,762 INFO L471 AbstractCegarLoop]: Abstraction has 144552 states and 185910 transitions. [2024-11-23 23:32:58,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 257.0) internal successors, (1028), 3 states have internal predecessors, (1028), 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) [2024-11-23 23:32:58,763 INFO L276 IsEmpty]: Start isEmpty. Operand 144552 states and 185910 transitions. [2024-11-23 23:32:58,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1079 [2024-11-23 23:32:58,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:32:58,921 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:32:58,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:32:58,922 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:32:58,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:32:58,923 INFO L85 PathProgramCache]: Analyzing trace with hash 385145592, now seen corresponding path program 2 times [2024-11-23 23:32:58,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:32:58,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668548176] [2024-11-23 23:32:58,923 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:32:58,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:32:59,557 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:32:59,557 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:33:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-23 23:33:00,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:33:00,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668548176] [2024-11-23 23:33:00,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668548176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:33:00,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:33:00,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:33:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513716370] [2024-11-23 23:33:00,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:33:00,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:33:00,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:33:00,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:33:00,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:33:00,560 INFO L87 Difference]: Start difference. First operand 144552 states and 185910 transitions. Second operand has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 2 states have internal predecessors, (1027), 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) [2024-11-23 23:33:07,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:33:07,162 INFO L93 Difference]: Finished difference Result 360969 states and 458286 transitions. [2024-11-23 23:33:07,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:33:07,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 2 states have internal predecessors, (1027), 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) Word has length 1078 [2024-11-23 23:33:07,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:33:07,515 INFO L225 Difference]: With dead ends: 360969 [2024-11-23 23:33:07,515 INFO L226 Difference]: Without dead ends: 216419 [2024-11-23 23:33:07,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:33:07,573 INFO L435 NwaCegarLoop]: 943 mSDtfsCounter, 1307 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 3452 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 3651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 3452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:33:07,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1134 Invalid, 3651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 3452 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-23 23:33:07,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216419 states. [2024-11-23 23:33:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216419 to 216391. [2024-11-23 23:33:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216391 states, 216390 states have (on average 1.2563658209713942) internal successors, (271865), 216390 states have internal predecessors, (271865), 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) [2024-11-23 23:33:10,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216391 states to 216391 states and 271865 transitions. [2024-11-23 23:33:10,656 INFO L78 Accepts]: Start accepts. Automaton has 216391 states and 271865 transitions. Word has length 1078 [2024-11-23 23:33:10,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:33:10,656 INFO L471 AbstractCegarLoop]: Abstraction has 216391 states and 271865 transitions. [2024-11-23 23:33:10,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 2 states have internal predecessors, (1027), 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) [2024-11-23 23:33:10,657 INFO L276 IsEmpty]: Start isEmpty. Operand 216391 states and 271865 transitions. [2024-11-23 23:33:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1083 [2024-11-23 23:33:11,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:33:11,396 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:33:11,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:33:11,396 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:33:11,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:33:11,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1446355002, now seen corresponding path program 1 times [2024-11-23 23:33:11,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:33:11,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857761376] [2024-11-23 23:33:11,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:33:11,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:33:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:33:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-23 23:33:12,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:33:12,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857761376] [2024-11-23 23:33:12,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857761376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:33:12,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:33:12,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:33:12,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127670069] [2024-11-23 23:33:12,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:33:13,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:33:13,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:33:13,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:33:13,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:33:13,003 INFO L87 Difference]: Start difference. First operand 216391 states and 271865 transitions. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 2 states have internal predecessors, (1009), 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) [2024-11-23 23:33:20,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:33:20,157 INFO L93 Difference]: Finished difference Result 576456 states and 716111 transitions. [2024-11-23 23:33:20,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:33:20,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 2 states have internal predecessors, (1009), 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) Word has length 1082 [2024-11-23 23:33:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:33:20,567 INFO L225 Difference]: With dead ends: 576456 [2024-11-23 23:33:20,567 INFO L226 Difference]: Without dead ends: 360067 [2024-11-23 23:33:20,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:33:20,633 INFO L435 NwaCegarLoop]: 844 mSDtfsCounter, 1320 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 3296 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 3647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 3296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:33:20,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 1030 Invalid, 3647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 3296 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-23 23:33:20,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360067 states. [2024-11-23 23:33:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360067 to 360043. [2024-11-23 23:33:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360043 states, 360042 states have (on average 1.2327645108070726) internal successors, (443847), 360042 states have internal predecessors, (443847), 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) [2024-11-23 23:33:26,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360043 states to 360043 states and 443847 transitions. [2024-11-23 23:33:26,782 INFO L78 Accepts]: Start accepts. Automaton has 360043 states and 443847 transitions. Word has length 1082 [2024-11-23 23:33:26,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:33:26,783 INFO L471 AbstractCegarLoop]: Abstraction has 360043 states and 443847 transitions. [2024-11-23 23:33:26,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 2 states have internal predecessors, (1009), 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) [2024-11-23 23:33:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 360043 states and 443847 transitions. [2024-11-23 23:33:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2024-11-23 23:33:27,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:33:27,108 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:33:27,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:33:27,108 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:33:27,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:33:27,109 INFO L85 PathProgramCache]: Analyzing trace with hash -648048562, now seen corresponding path program 1 times [2024-11-23 23:33:27,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:33:27,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563421121] [2024-11-23 23:33:27,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:33:27,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:33:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:33:28,771 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-23 23:33:28,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:33:28,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563421121] [2024-11-23 23:33:28,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563421121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:33:28,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:33:28,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:33:28,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097222343] [2024-11-23 23:33:28,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:33:28,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:33:28,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:33:28,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:33:28,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:33:28,776 INFO L87 Difference]: Start difference. First operand 360043 states and 443847 transitions. Second operand has 3 states, 3 states have (on average 355.0) internal successors, (1065), 2 states have internal predecessors, (1065), 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)