./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.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_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/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_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/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_f04a0282-2870-4a1e-8264-eb295feaf223/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 3fb71e8e4e407700549b8952f3afdeeffa0973a11e08bb7f18bca04e4b75e49d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:25:47,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:25:47,922 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:25:47,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:25:47,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:25:47,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:25:47,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:25:47,984 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:25:47,985 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:25:47,985 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:25:47,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:25:47,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:25:47,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:25:47,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:25:47,987 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:25:47,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:25:47,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:25:47,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:25:47,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:25:47,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:25:47,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:25:47,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:25:47,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:25:47,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:25:47,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:25:47,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:25:47,990 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:25:47,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:25:47,991 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:25:47,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:25:47,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:25:47,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:25:47,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:25:47,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:25:47,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:25:47,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:25:47,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:25:47,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:25:47,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:25:47,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:25:47,993 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:25:47,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:25:47,994 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:25:47,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:25:47,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:25:47,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:25:47,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:25:47,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:25:47,994 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_f04a0282-2870-4a1e-8264-eb295feaf223/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 -> 3fb71e8e4e407700549b8952f3afdeeffa0973a11e08bb7f18bca04e4b75e49d [2024-11-23 23:25:48,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:25:48,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:25:48,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:25:48,393 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:25:48,394 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:25:48,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-23 23:25:51,803 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/data/6f95de7f5/a35810e126044bd7a097039cfc0ae984/FLAG860716864 [2024-11-23 23:25:52,274 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:25:52,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-23 23:25:52,311 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/data/6f95de7f5/a35810e126044bd7a097039cfc0ae984/FLAG860716864 [2024-11-23 23:25:52,338 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/data/6f95de7f5/a35810e126044bd7a097039cfc0ae984 [2024-11-23 23:25:52,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:25:52,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:25:52,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:25:52,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:25:52,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:25:52,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:52" (1/1) ... [2024-11-23 23:25:52,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c61ee07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:52, skipping insertion in model container [2024-11-23 23:25:52,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:52" (1/1) ... [2024-11-23 23:25:52,399 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:25:52,845 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_f04a0282-2870-4a1e-8264-eb295feaf223/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[10378,10391] [2024-11-23 23:25:52,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:25:53,009 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:25:53,152 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_f04a0282-2870-4a1e-8264-eb295feaf223/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[10378,10391] [2024-11-23 23:25:53,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:25:53,221 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:25:53,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53 WrapperNode [2024-11-23 23:25:53,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:25:53,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:25:53,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:25:53,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:25:53,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,299 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 904 [2024-11-23 23:25:53,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:25:53,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:25:53,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:25:53,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:25:53,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,317 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,339 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 23:25:53,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,354 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:25:53,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:25:53,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:25:53,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:25:53,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (1/1) ... [2024-11-23 23:25:53,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:25:53,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:25:53,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:25:53,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:25:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:25:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:25:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:25:53,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:25:53,667 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:25:53,669 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:25:55,063 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2024-11-23 23:25:55,063 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:25:55,087 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:25:55,088 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:25:55,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:55 BoogieIcfgContainer [2024-11-23 23:25:55,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:25:55,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:25:55,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:25:55,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:25:55,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:25:52" (1/3) ... [2024-11-23 23:25:55,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f9409f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:55, skipping insertion in model container [2024-11-23 23:25:55,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:53" (2/3) ... [2024-11-23 23:25:55,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f9409f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:55, skipping insertion in model container [2024-11-23 23:25:55,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:55" (3/3) ... [2024-11-23 23:25:55,098 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-23 23:25:55,114 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:25:55,117 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 201 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:25:55,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:25:55,200 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;@41d70a8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:25:55,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:25:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 199 states have (on average 1.763819095477387) internal successors, (351), 200 states have internal predecessors, (351), 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 23:25:55,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:25:55,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:55,227 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] [2024-11-23 23:25:55,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:55,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1361095482, now seen corresponding path program 1 times [2024-11-23 23:25:55,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:55,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857147198] [2024-11-23 23:25:55,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:55,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:56,837 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 23:25:56,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:56,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857147198] [2024-11-23 23:25:56,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857147198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:56,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:56,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:25:56,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232772867] [2024-11-23 23:25:56,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:56,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:25:56,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:56,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:25:56,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:25:56,879 INFO L87 Difference]: Start difference. First operand has 201 states, 199 states have (on average 1.763819095477387) internal successors, (351), 200 states have internal predecessors, (351), 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 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 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 23:25:57,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:57,999 INFO L93 Difference]: Finished difference Result 1440 states and 2328 transitions. [2024-11-23 23:25:58,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:25:58,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 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 107 [2024-11-23 23:25:58,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:58,023 INFO L225 Difference]: With dead ends: 1440 [2024-11-23 23:25:58,023 INFO L226 Difference]: Without dead ends: 1332 [2024-11-23 23:25:58,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:25:58,031 INFO L435 NwaCegarLoop]: 764 mSDtfsCounter, 2817 mSDsluCounter, 4939 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 5703 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:58,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 5703 Invalid, 420 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:25:58,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2024-11-23 23:25:58,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 303. [2024-11-23 23:25:58,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4503311258278146) internal successors, (438), 302 states have internal predecessors, (438), 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 23:25:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 438 transitions. [2024-11-23 23:25:58,150 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 438 transitions. Word has length 107 [2024-11-23 23:25:58,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:58,152 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 438 transitions. [2024-11-23 23:25:58,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 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 23:25:58,153 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 438 transitions. [2024-11-23 23:25:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:25:58,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:58,157 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] [2024-11-23 23:25:58,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:25:58,157 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:58,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:58,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1847794712, now seen corresponding path program 1 times [2024-11-23 23:25:58,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:58,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469165511] [2024-11-23 23:25:58,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:58,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:58,812 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 23:25:58,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:58,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469165511] [2024-11-23 23:25:58,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469165511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:58,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:58,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:25:58,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134604438] [2024-11-23 23:25:58,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:58,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:25:58,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:58,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:25:58,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:25:58,820 INFO L87 Difference]: Start difference. First operand 303 states and 438 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:25:59,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:59,484 INFO L93 Difference]: Finished difference Result 1559 states and 2435 transitions. [2024-11-23 23:25:59,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:25:59,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 109 [2024-11-23 23:25:59,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:59,495 INFO L225 Difference]: With dead ends: 1559 [2024-11-23 23:25:59,499 INFO L226 Difference]: Without dead ends: 1399 [2024-11-23 23:25:59,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:25:59,502 INFO L435 NwaCegarLoop]: 733 mSDtfsCounter, 1949 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:59,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 3135 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:25:59,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2024-11-23 23:25:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 482. [2024-11-23 23:25:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 1.5051975051975053) internal successors, (724), 481 states have internal predecessors, (724), 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 23:25:59,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 724 transitions. [2024-11-23 23:25:59,571 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 724 transitions. Word has length 109 [2024-11-23 23:25:59,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:59,571 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 724 transitions. [2024-11-23 23:25:59,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:25:59,572 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 724 transitions. [2024-11-23 23:25:59,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:25:59,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:59,578 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] [2024-11-23 23:25:59,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:25:59,578 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:59,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:59,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2013134268, now seen corresponding path program 1 times [2024-11-23 23:25:59,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:59,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231338661] [2024-11-23 23:25:59,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:59,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:00,088 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 23:26:00,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:00,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231338661] [2024-11-23 23:26:00,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231338661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:00,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:00,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:00,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005757540] [2024-11-23 23:26:00,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:00,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:26:00,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:00,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:26:00,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:26:00,092 INFO L87 Difference]: Start difference. First operand 482 states and 724 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:00,624 INFO L93 Difference]: Finished difference Result 1738 states and 2721 transitions. [2024-11-23 23:26:00,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:26:00,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 109 [2024-11-23 23:26:00,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:00,637 INFO L225 Difference]: With dead ends: 1738 [2024-11-23 23:26:00,637 INFO L226 Difference]: Without dead ends: 1578 [2024-11-23 23:26:00,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:26:00,642 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 2229 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:00,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 2685 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:26:00,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-11-23 23:26:00,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 735. [2024-11-23 23:26:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 1.5367847411444142) internal successors, (1128), 734 states have internal predecessors, (1128), 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 23:26:00,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1128 transitions. [2024-11-23 23:26:00,701 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1128 transitions. Word has length 109 [2024-11-23 23:26:00,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:00,703 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 1128 transitions. [2024-11-23 23:26:00,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:00,703 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1128 transitions. [2024-11-23 23:26:00,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:26:00,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:00,709 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] [2024-11-23 23:26:00,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:26:00,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:00,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:00,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1500386704, now seen corresponding path program 1 times [2024-11-23 23:26:00,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:00,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313103025] [2024-11-23 23:26:00,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:00,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:01,173 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 23:26:01,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:01,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313103025] [2024-11-23 23:26:01,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313103025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:01,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:01,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:01,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229111255] [2024-11-23 23:26:01,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:01,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:26:01,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:01,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:26:01,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:26:01,177 INFO L87 Difference]: Start difference. First operand 735 states and 1128 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:01,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:01,590 INFO L93 Difference]: Finished difference Result 1907 states and 2991 transitions. [2024-11-23 23:26:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:26:01,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 109 [2024-11-23 23:26:01,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:01,600 INFO L225 Difference]: With dead ends: 1907 [2024-11-23 23:26:01,600 INFO L226 Difference]: Without dead ends: 1747 [2024-11-23 23:26:01,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:26:01,602 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 2405 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:01,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 2320 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:01,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2024-11-23 23:26:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 899. [2024-11-23 23:26:01,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 898 states have (on average 1.5478841870824054) internal successors, (1390), 898 states have internal predecessors, (1390), 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 23:26:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1390 transitions. [2024-11-23 23:26:01,666 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1390 transitions. Word has length 109 [2024-11-23 23:26:01,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:01,666 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1390 transitions. [2024-11-23 23:26:01,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1390 transitions. [2024-11-23 23:26:01,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:26:01,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:01,669 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] [2024-11-23 23:26:01,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:26:01,669 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:01,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:01,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2131359206, now seen corresponding path program 1 times [2024-11-23 23:26:01,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:01,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137117570] [2024-11-23 23:26:01,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:01,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:02,069 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 23:26:02,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:02,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137117570] [2024-11-23 23:26:02,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137117570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:02,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:02,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:02,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131579485] [2024-11-23 23:26:02,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:02,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:26:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:02,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:26:02,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:26:02,072 INFO L87 Difference]: Start difference. First operand 899 states and 1390 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:02,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:02,460 INFO L93 Difference]: Finished difference Result 2066 states and 3245 transitions. [2024-11-23 23:26:02,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:26:02,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 109 [2024-11-23 23:26:02,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:02,469 INFO L225 Difference]: With dead ends: 2066 [2024-11-23 23:26:02,469 INFO L226 Difference]: Without dead ends: 1906 [2024-11-23 23:26:02,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:26:02,473 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 2913 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:02,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2913 Valid, 2206 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:02,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2024-11-23 23:26:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1058. [2024-11-23 23:26:02,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1057 states have (on average 1.555345316934721) internal successors, (1644), 1057 states have internal predecessors, (1644), 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 23:26:02,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1644 transitions. [2024-11-23 23:26:02,529 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1644 transitions. Word has length 109 [2024-11-23 23:26:02,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:02,530 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1644 transitions. [2024-11-23 23:26:02,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:02,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1644 transitions. [2024-11-23 23:26:02,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:26:02,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:02,532 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] [2024-11-23 23:26:02,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:26:02,532 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:02,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:02,533 INFO L85 PathProgramCache]: Analyzing trace with hash -983368864, now seen corresponding path program 1 times [2024-11-23 23:26:02,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:02,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359708103] [2024-11-23 23:26:02,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:02,657 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 23:26:02,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:02,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359708103] [2024-11-23 23:26:02,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359708103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:02,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:02,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:26:02,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455785451] [2024-11-23 23:26:02,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:02,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:26:02,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:02,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:26:02,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:02,660 INFO L87 Difference]: Start difference. First operand 1058 states and 1644 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 23:26:02,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:02,720 INFO L93 Difference]: Finished difference Result 2729 states and 4305 transitions. [2024-11-23 23:26:02,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:26:02,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 109 [2024-11-23 23:26:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:02,727 INFO L225 Difference]: With dead ends: 2729 [2024-11-23 23:26:02,727 INFO L226 Difference]: Without dead ends: 1858 [2024-11-23 23:26:02,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:02,730 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 115 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:02,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 637 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:26:02,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2024-11-23 23:26:02,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1834. [2024-11-23 23:26:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.55810147299509) internal successors, (2856), 1833 states have internal predecessors, (2856), 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 23:26:02,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2856 transitions. [2024-11-23 23:26:02,839 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2856 transitions. Word has length 109 [2024-11-23 23:26:02,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:02,839 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2856 transitions. [2024-11-23 23:26:02,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 23:26:02,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2856 transitions. [2024-11-23 23:26:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:26:02,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:02,842 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] [2024-11-23 23:26:02,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:26:02,842 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:02,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:02,843 INFO L85 PathProgramCache]: Analyzing trace with hash -739291201, now seen corresponding path program 1 times [2024-11-23 23:26:02,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:02,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145338285] [2024-11-23 23:26:02,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:02,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:03,534 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 23:26:03,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:03,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145338285] [2024-11-23 23:26:03,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145338285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:03,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:03,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:03,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793326422] [2024-11-23 23:26:03,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:03,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:26:03,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:03,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:26:03,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:26:03,537 INFO L87 Difference]: Start difference. First operand 1834 states and 2856 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:04,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:04,164 INFO L93 Difference]: Finished difference Result 3483 states and 5462 transitions. [2024-11-23 23:26:04,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:26:04,165 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 109 [2024-11-23 23:26:04,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:04,173 INFO L225 Difference]: With dead ends: 3483 [2024-11-23 23:26:04,173 INFO L226 Difference]: Without dead ends: 1836 [2024-11-23 23:26:04,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:26:04,179 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 1110 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:04,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1328 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:04,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2024-11-23 23:26:04,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1834. [2024-11-23 23:26:04,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.5548281505728314) internal successors, (2850), 1833 states have internal predecessors, (2850), 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 23:26:04,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2850 transitions. [2024-11-23 23:26:04,240 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2850 transitions. Word has length 109 [2024-11-23 23:26:04,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:04,242 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2850 transitions. [2024-11-23 23:26:04,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:04,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2850 transitions. [2024-11-23 23:26:04,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:26:04,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:04,246 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] [2024-11-23 23:26:04,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:26:04,246 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:04,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:04,247 INFO L85 PathProgramCache]: Analyzing trace with hash 307798176, now seen corresponding path program 1 times [2024-11-23 23:26:04,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:04,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251313090] [2024-11-23 23:26:04,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:04,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:04,720 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 23:26:04,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:04,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251313090] [2024-11-23 23:26:04,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251313090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:04,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:04,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:04,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94001729] [2024-11-23 23:26:04,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:04,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:26:04,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:04,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:26:04,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:26:04,723 INFO L87 Difference]: Start difference. First operand 1834 states and 2850 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:05,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:05,228 INFO L93 Difference]: Finished difference Result 3987 states and 6244 transitions. [2024-11-23 23:26:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:26:05,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 109 [2024-11-23 23:26:05,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:05,243 INFO L225 Difference]: With dead ends: 3987 [2024-11-23 23:26:05,243 INFO L226 Difference]: Without dead ends: 3686 [2024-11-23 23:26:05,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:26:05,246 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 2206 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:05,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 2613 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:26:05,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2024-11-23 23:26:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 2133. [2024-11-23 23:26:05,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 2132 states have (on average 1.5581613508442778) internal successors, (3322), 2132 states have internal predecessors, (3322), 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 23:26:05,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 3322 transitions. [2024-11-23 23:26:05,336 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 3322 transitions. Word has length 109 [2024-11-23 23:26:05,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:05,336 INFO L471 AbstractCegarLoop]: Abstraction has 2133 states and 3322 transitions. [2024-11-23 23:26:05,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:05,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 3322 transitions. [2024-11-23 23:26:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:26:05,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:05,343 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] [2024-11-23 23:26:05,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:26:05,343 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:05,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:05,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2133931794, now seen corresponding path program 1 times [2024-11-23 23:26:05,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:05,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988036141] [2024-11-23 23:26:05,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:05,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:05,714 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 23:26:05,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:05,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988036141] [2024-11-23 23:26:05,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988036141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:05,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:05,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:05,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733465727] [2024-11-23 23:26:05,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:05,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:26:05,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:05,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:26:05,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:26:05,716 INFO L87 Difference]: Start difference. First operand 2133 states and 3322 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:06,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:06,151 INFO L93 Difference]: Finished difference Result 4292 states and 6725 transitions. [2024-11-23 23:26:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:26:06,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 109 [2024-11-23 23:26:06,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:06,165 INFO L225 Difference]: With dead ends: 4292 [2024-11-23 23:26:06,165 INFO L226 Difference]: Without dead ends: 3991 [2024-11-23 23:26:06,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:26:06,168 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 2156 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:06,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 3130 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:06,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2024-11-23 23:26:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 2443. [2024-11-23 23:26:06,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2442 states have (on average 1.5606060606060606) internal successors, (3811), 2442 states have internal predecessors, (3811), 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 23:26:06,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3811 transitions. [2024-11-23 23:26:06,259 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3811 transitions. Word has length 109 [2024-11-23 23:26:06,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:06,260 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3811 transitions. [2024-11-23 23:26:06,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:06,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3811 transitions. [2024-11-23 23:26:06,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:26:06,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:06,262 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] [2024-11-23 23:26:06,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:26:06,262 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:06,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:06,263 INFO L85 PathProgramCache]: Analyzing trace with hash 763996610, now seen corresponding path program 1 times [2024-11-23 23:26:06,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:06,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755315988] [2024-11-23 23:26:06,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:06,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:06,639 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 23:26:06,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:06,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755315988] [2024-11-23 23:26:06,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755315988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:06,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:06,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:06,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941130688] [2024-11-23 23:26:06,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:06,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:26:06,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:06,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:26:06,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:26:06,641 INFO L87 Difference]: Start difference. First operand 2443 states and 3811 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:07,071 INFO L93 Difference]: Finished difference Result 4607 states and 7222 transitions. [2024-11-23 23:26:07,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:26:07,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 109 [2024-11-23 23:26:07,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:07,092 INFO L225 Difference]: With dead ends: 4607 [2024-11-23 23:26:07,092 INFO L226 Difference]: Without dead ends: 4306 [2024-11-23 23:26:07,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:26:07,095 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 2332 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:07,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 3271 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:07,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2024-11-23 23:26:07,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 2763. [2024-11-23 23:26:07,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.562635771180304) internal successors, (4316), 2762 states have internal predecessors, (4316), 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 23:26:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4316 transitions. [2024-11-23 23:26:07,202 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4316 transitions. Word has length 109 [2024-11-23 23:26:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:07,206 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4316 transitions. [2024-11-23 23:26:07,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 23:26:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4316 transitions. [2024-11-23 23:26:07,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:26:07,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:07,209 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] [2024-11-23 23:26:07,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:26:07,209 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:07,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:07,211 INFO L85 PathProgramCache]: Analyzing trace with hash -186015446, now seen corresponding path program 1 times [2024-11-23 23:26:07,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:07,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494171480] [2024-11-23 23:26:07,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:07,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:07,390 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 23:26:07,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:07,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494171480] [2024-11-23 23:26:07,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494171480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:07,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:07,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:26:07,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604503082] [2024-11-23 23:26:07,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:07,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:26:07,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:07,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:26:07,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:26:07,392 INFO L87 Difference]: Start difference. First operand 2763 states and 4316 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 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 23:26:07,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:07,810 INFO L93 Difference]: Finished difference Result 8111 states and 12741 transitions. [2024-11-23 23:26:07,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:26:07,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 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 110 [2024-11-23 23:26:07,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:07,828 INFO L225 Difference]: With dead ends: 8111 [2024-11-23 23:26:07,828 INFO L226 Difference]: Without dead ends: 5404 [2024-11-23 23:26:07,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:26:07,833 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 1081 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:07,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 239 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:26:07,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2024-11-23 23:26:07,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 5402. [2024-11-23 23:26:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 1.563784484354749) internal successors, (8446), 5401 states have internal predecessors, (8446), 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 23:26:07,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 8446 transitions. [2024-11-23 23:26:07,970 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 8446 transitions. Word has length 110 [2024-11-23 23:26:07,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:07,971 INFO L471 AbstractCegarLoop]: Abstraction has 5402 states and 8446 transitions. [2024-11-23 23:26:07,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 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 23:26:07,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 8446 transitions. [2024-11-23 23:26:07,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:26:07,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:07,973 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] [2024-11-23 23:26:07,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:26:07,974 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:07,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:07,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1618909482, now seen corresponding path program 1 times [2024-11-23 23:26:07,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:07,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913115970] [2024-11-23 23:26:07,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:07,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:08,224 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 23:26:08,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:08,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913115970] [2024-11-23 23:26:08,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913115970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:08,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:08,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:26:08,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058638362] [2024-11-23 23:26:08,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:08,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:26:08,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:08,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:26:08,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:26:08,227 INFO L87 Difference]: Start difference. First operand 5402 states and 8446 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 23:26:08,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:08,519 INFO L93 Difference]: Finished difference Result 10732 states and 16816 transitions. [2024-11-23 23:26:08,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:26:08,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 111 [2024-11-23 23:26:08,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:08,542 INFO L225 Difference]: With dead ends: 10732 [2024-11-23 23:26:08,543 INFO L226 Difference]: Without dead ends: 5402 [2024-11-23 23:26:08,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:26:08,549 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 695 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:08,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 182 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:08,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2024-11-23 23:26:08,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5402. [2024-11-23 23:26:08,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 1.551009072394001) internal successors, (8377), 5401 states have internal predecessors, (8377), 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 23:26:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 8377 transitions. [2024-11-23 23:26:08,694 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 8377 transitions. Word has length 111 [2024-11-23 23:26:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:08,695 INFO L471 AbstractCegarLoop]: Abstraction has 5402 states and 8377 transitions. [2024-11-23 23:26:08,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 23:26:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 8377 transitions. [2024-11-23 23:26:08,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:26:08,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:08,698 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] [2024-11-23 23:26:08,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:26:08,698 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:08,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:08,699 INFO L85 PathProgramCache]: Analyzing trace with hash -716601046, now seen corresponding path program 1 times [2024-11-23 23:26:08,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:08,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872955516] [2024-11-23 23:26:08,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:08,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:08,874 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 23:26:08,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:08,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872955516] [2024-11-23 23:26:08,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872955516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:08,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:08,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:26:08,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001246778] [2024-11-23 23:26:08,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:08,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:26:08,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:08,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:26:08,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:26:08,877 INFO L87 Difference]: Start difference. First operand 5402 states and 8377 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 23:26:09,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:09,138 INFO L93 Difference]: Finished difference Result 10724 states and 16669 transitions. [2024-11-23 23:26:09,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:26:09,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 112 [2024-11-23 23:26:09,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:09,152 INFO L225 Difference]: With dead ends: 10724 [2024-11-23 23:26:09,152 INFO L226 Difference]: Without dead ends: 5402 [2024-11-23 23:26:09,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:26:09,160 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 667 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:09,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 202 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:09,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2024-11-23 23:26:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5402. [2024-11-23 23:26:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 1.5382336604332532) internal successors, (8308), 5401 states have internal predecessors, (8308), 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 23:26:09,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 8308 transitions. [2024-11-23 23:26:09,305 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 8308 transitions. Word has length 112 [2024-11-23 23:26:09,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:09,305 INFO L471 AbstractCegarLoop]: Abstraction has 5402 states and 8308 transitions. [2024-11-23 23:26:09,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 23:26:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 8308 transitions. [2024-11-23 23:26:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:26:09,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:09,309 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] [2024-11-23 23:26:09,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:26:09,309 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:09,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:09,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1447492906, now seen corresponding path program 1 times [2024-11-23 23:26:09,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:09,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383597796] [2024-11-23 23:26:09,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:09,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:09,526 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 23:26:09,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:09,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383597796] [2024-11-23 23:26:09,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383597796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:09,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:09,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:26:09,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397351716] [2024-11-23 23:26:09,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:09,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:26:09,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:09,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:26:09,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:26:09,528 INFO L87 Difference]: Start difference. First operand 5402 states and 8308 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 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 23:26:09,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:09,802 INFO L93 Difference]: Finished difference Result 10736 states and 16545 transitions. [2024-11-23 23:26:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:26:09,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 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 113 [2024-11-23 23:26:09,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:09,814 INFO L225 Difference]: With dead ends: 10736 [2024-11-23 23:26:09,815 INFO L226 Difference]: Without dead ends: 5402 [2024-11-23 23:26:09,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:26:09,821 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 694 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:09,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 174 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:09,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2024-11-23 23:26:09,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5402. [2024-11-23 23:26:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 1.525458248472505) internal successors, (8239), 5401 states have internal predecessors, (8239), 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 23:26:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 8239 transitions. [2024-11-23 23:26:10,011 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 8239 transitions. Word has length 113 [2024-11-23 23:26:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:10,011 INFO L471 AbstractCegarLoop]: Abstraction has 5402 states and 8239 transitions. [2024-11-23 23:26:10,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 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 23:26:10,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 8239 transitions. [2024-11-23 23:26:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 23:26:10,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:10,015 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] [2024-11-23 23:26:10,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:26:10,016 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:10,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:10,016 INFO L85 PathProgramCache]: Analyzing trace with hash 912210718, now seen corresponding path program 1 times [2024-11-23 23:26:10,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:10,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652964316] [2024-11-23 23:26:10,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:10,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:10,200 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 23:26:10,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:10,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652964316] [2024-11-23 23:26:10,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652964316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:10,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:10,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:26:10,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202008000] [2024-11-23 23:26:10,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:10,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:26:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:10,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:26:10,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:26:10,204 INFO L87 Difference]: Start difference. First operand 5402 states and 8239 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 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 23:26:10,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:10,440 INFO L93 Difference]: Finished difference Result 10744 states and 16417 transitions. [2024-11-23 23:26:10,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:26:10,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 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 114 [2024-11-23 23:26:10,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:10,452 INFO L225 Difference]: With dead ends: 10744 [2024-11-23 23:26:10,453 INFO L226 Difference]: Without dead ends: 5402 [2024-11-23 23:26:10,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:26:10,461 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 710 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:10,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 158 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:10,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2024-11-23 23:26:10,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5402. [2024-11-23 23:26:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 1.512682836511757) internal successors, (8170), 5401 states have internal predecessors, (8170), 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 23:26:10,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 8170 transitions. [2024-11-23 23:26:10,580 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 8170 transitions. Word has length 114 [2024-11-23 23:26:10,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:10,580 INFO L471 AbstractCegarLoop]: Abstraction has 5402 states and 8170 transitions. [2024-11-23 23:26:10,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 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 23:26:10,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 8170 transitions. [2024-11-23 23:26:10,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:26:10,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:10,583 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] [2024-11-23 23:26:10,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:26:10,583 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:10,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:10,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1260402774, now seen corresponding path program 1 times [2024-11-23 23:26:10,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:10,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497007410] [2024-11-23 23:26:10,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:10,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:10,775 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 23:26:10,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:10,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497007410] [2024-11-23 23:26:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497007410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:10,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:26:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395327040] [2024-11-23 23:26:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:10,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:26:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:10,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:26:10,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:26:10,777 INFO L87 Difference]: Start difference. First operand 5402 states and 8170 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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 23:26:11,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:11,029 INFO L93 Difference]: Finished difference Result 10740 states and 16275 transitions. [2024-11-23 23:26:11,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:26:11,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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 115 [2024-11-23 23:26:11,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:11,042 INFO L225 Difference]: With dead ends: 10740 [2024-11-23 23:26:11,042 INFO L226 Difference]: Without dead ends: 5402 [2024-11-23 23:26:11,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:26:11,049 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 692 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:11,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 166 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:11,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2024-11-23 23:26:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5402. [2024-11-23 23:26:11,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 1.4999074245510091) internal successors, (8101), 5401 states have internal predecessors, (8101), 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 23:26:11,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 8101 transitions. [2024-11-23 23:26:11,160 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 8101 transitions. Word has length 115 [2024-11-23 23:26:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:11,160 INFO L471 AbstractCegarLoop]: Abstraction has 5402 states and 8101 transitions. [2024-11-23 23:26:11,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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 23:26:11,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 8101 transitions. [2024-11-23 23:26:11,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 23:26:11,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:11,163 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] [2024-11-23 23:26:11,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:26:11,164 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:11,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:11,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1805227026, now seen corresponding path program 1 times [2024-11-23 23:26:11,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:11,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373019223] [2024-11-23 23:26:11,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:11,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:11,456 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 23:26:11,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:11,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373019223] [2024-11-23 23:26:11,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373019223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:11,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:11,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:26:11,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603056279] [2024-11-23 23:26:11,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:11,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:26:11,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:11,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:26:11,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:26:11,459 INFO L87 Difference]: Start difference. First operand 5402 states and 8101 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 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 23:26:11,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:11,722 INFO L93 Difference]: Finished difference Result 10728 states and 16125 transitions. [2024-11-23 23:26:11,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:26:11,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 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 116 [2024-11-23 23:26:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:11,737 INFO L225 Difference]: With dead ends: 10728 [2024-11-23 23:26:11,737 INFO L226 Difference]: Without dead ends: 5402 [2024-11-23 23:26:11,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:26:11,745 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 650 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:11,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 190 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:26:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2024-11-23 23:26:11,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5402. [2024-11-23 23:26:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 1.487132012590261) internal successors, (8032), 5401 states have internal predecessors, (8032), 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 23:26:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 8032 transitions. [2024-11-23 23:26:11,891 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 8032 transitions. Word has length 116 [2024-11-23 23:26:11,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:11,892 INFO L471 AbstractCegarLoop]: Abstraction has 5402 states and 8032 transitions. [2024-11-23 23:26:11,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 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 23:26:11,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 8032 transitions. [2024-11-23 23:26:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-23 23:26:11,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:11,895 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] [2024-11-23 23:26:11,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:26:11,896 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:11,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:11,896 INFO L85 PathProgramCache]: Analyzing trace with hash 695724750, now seen corresponding path program 1 times [2024-11-23 23:26:11,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:11,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250271419] [2024-11-23 23:26:11,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:11,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:12,847 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 23:26:12,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:12,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250271419] [2024-11-23 23:26:12,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250271419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:12,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:12,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:26:12,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350085009] [2024-11-23 23:26:12,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:12,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:26:12,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:12,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:26:12,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:26:12,849 INFO L87 Difference]: Start difference. First operand 5402 states and 8032 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 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 23:26:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:14,082 INFO L93 Difference]: Finished difference Result 15791 states and 23456 transitions. [2024-11-23 23:26:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:26:14,083 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 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 117 [2024-11-23 23:26:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:14,105 INFO L225 Difference]: With dead ends: 15791 [2024-11-23 23:26:14,105 INFO L226 Difference]: Without dead ends: 10692 [2024-11-23 23:26:14,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:26:14,110 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 742 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:14,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 843 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:26:14,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2024-11-23 23:26:14,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 5402. [2024-11-23 23:26:14,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 1.4847250509164969) internal successors, (8019), 5401 states have internal predecessors, (8019), 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 23:26:14,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 8019 transitions. [2024-11-23 23:26:14,231 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 8019 transitions. Word has length 117 [2024-11-23 23:26:14,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:14,231 INFO L471 AbstractCegarLoop]: Abstraction has 5402 states and 8019 transitions. [2024-11-23 23:26:14,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 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 23:26:14,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 8019 transitions. [2024-11-23 23:26:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 23:26:14,235 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:14,235 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] [2024-11-23 23:26:14,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:26:14,236 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:14,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:14,237 INFO L85 PathProgramCache]: Analyzing trace with hash -524174812, now seen corresponding path program 1 times [2024-11-23 23:26:14,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:14,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120991517] [2024-11-23 23:26:14,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:14,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:15,110 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 23:26:15,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:15,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120991517] [2024-11-23 23:26:15,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120991517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:15,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:15,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:26:15,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708021959] [2024-11-23 23:26:15,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:15,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:26:15,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:15,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:26:15,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:26:15,113 INFO L87 Difference]: Start difference. First operand 5402 states and 8019 transitions. Second operand has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 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 23:26:16,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:16,212 INFO L93 Difference]: Finished difference Result 16185 states and 23925 transitions. [2024-11-23 23:26:16,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:26:16,213 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 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 118 [2024-11-23 23:26:16,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:16,238 INFO L225 Difference]: With dead ends: 16185 [2024-11-23 23:26:16,239 INFO L226 Difference]: Without dead ends: 11013 [2024-11-23 23:26:16,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:26:16,246 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 947 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:16,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 934 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:26:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11013 states. [2024-11-23 23:26:16,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11013 to 5435. [2024-11-23 23:26:16,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 1.4834376150165625) internal successors, (8061), 5434 states have internal predecessors, (8061), 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 23:26:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 8061 transitions. [2024-11-23 23:26:16,429 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 8061 transitions. Word has length 118 [2024-11-23 23:26:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:16,429 INFO L471 AbstractCegarLoop]: Abstraction has 5435 states and 8061 transitions. [2024-11-23 23:26:16,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 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 23:26:16,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 8061 transitions. [2024-11-23 23:26:16,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 23:26:16,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:16,432 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] [2024-11-23 23:26:16,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:26:16,432 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:16,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:16,433 INFO L85 PathProgramCache]: Analyzing trace with hash -624003670, now seen corresponding path program 1 times [2024-11-23 23:26:16,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:16,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891266699] [2024-11-23 23:26:16,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:16,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:16,889 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 23:26:16,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:16,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891266699] [2024-11-23 23:26:16,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891266699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:16,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:16,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:26:16,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322622973] [2024-11-23 23:26:16,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:16,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:26:16,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:16,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:26:16,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:26:16,892 INFO L87 Difference]: Start difference. First operand 5435 states and 8061 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 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 23:26:17,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:17,483 INFO L93 Difference]: Finished difference Result 15715 states and 23394 transitions. [2024-11-23 23:26:17,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:26:17,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 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 118 [2024-11-23 23:26:17,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:17,504 INFO L225 Difference]: With dead ends: 15715 [2024-11-23 23:26:17,504 INFO L226 Difference]: Without dead ends: 10521 [2024-11-23 23:26:17,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:26:17,511 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 579 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:17,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 645 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:26:17,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2024-11-23 23:26:17,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 5435. [2024-11-23 23:26:17,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 1.4832535885167464) internal successors, (8060), 5434 states have internal predecessors, (8060), 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 23:26:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 8060 transitions. [2024-11-23 23:26:17,631 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 8060 transitions. Word has length 118 [2024-11-23 23:26:17,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:17,631 INFO L471 AbstractCegarLoop]: Abstraction has 5435 states and 8060 transitions. [2024-11-23 23:26:17,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 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 23:26:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 8060 transitions. [2024-11-23 23:26:17,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:26:17,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:17,634 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] [2024-11-23 23:26:17,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:26:17,634 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:17,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:17,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1133247616, now seen corresponding path program 1 times [2024-11-23 23:26:17,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:17,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40136829] [2024-11-23 23:26:17,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:17,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:18,391 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 23:26:18,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:18,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40136829] [2024-11-23 23:26:18,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40136829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:18,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:18,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:26:18,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987055617] [2024-11-23 23:26:18,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:18,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:26:18,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:18,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:26:18,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:26:18,393 INFO L87 Difference]: Start difference. First operand 5435 states and 8060 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 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 23:26:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:19,420 INFO L93 Difference]: Finished difference Result 16288 states and 24048 transitions. [2024-11-23 23:26:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:26:19,421 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 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 119 [2024-11-23 23:26:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:19,443 INFO L225 Difference]: With dead ends: 16288 [2024-11-23 23:26:19,443 INFO L226 Difference]: Without dead ends: 11202 [2024-11-23 23:26:19,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:26:19,449 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1497 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:19,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 934 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:26:19,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11202 states. [2024-11-23 23:26:19,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11202 to 5599. [2024-11-23 23:26:19,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5599 states, 5598 states have (on average 1.482315112540193) internal successors, (8298), 5598 states have internal predecessors, (8298), 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 23:26:19,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5599 states to 5599 states and 8298 transitions. [2024-11-23 23:26:19,566 INFO L78 Accepts]: Start accepts. Automaton has 5599 states and 8298 transitions. Word has length 119 [2024-11-23 23:26:19,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:19,566 INFO L471 AbstractCegarLoop]: Abstraction has 5599 states and 8298 transitions. [2024-11-23 23:26:19,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 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 23:26:19,566 INFO L276 IsEmpty]: Start isEmpty. Operand 5599 states and 8298 transitions. [2024-11-23 23:26:19,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:26:19,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:19,569 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] [2024-11-23 23:26:19,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:26:19,569 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:19,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:19,570 INFO L85 PathProgramCache]: Analyzing trace with hash 637140820, now seen corresponding path program 1 times [2024-11-23 23:26:19,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:19,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405381182] [2024-11-23 23:26:19,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:19,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:20,028 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 23:26:20,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:20,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405381182] [2024-11-23 23:26:20,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405381182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:20,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:20,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:20,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489041903] [2024-11-23 23:26:20,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:20,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:26:20,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:20,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:26:20,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:26:20,031 INFO L87 Difference]: Start difference. First operand 5599 states and 8298 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 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 23:26:20,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:20,796 INFO L93 Difference]: Finished difference Result 16188 states and 23984 transitions. [2024-11-23 23:26:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:26:20,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 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 119 [2024-11-23 23:26:20,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:20,821 INFO L225 Difference]: With dead ends: 16188 [2024-11-23 23:26:20,821 INFO L226 Difference]: Without dead ends: 11102 [2024-11-23 23:26:20,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:26:20,832 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 1023 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:20,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 747 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:26:20,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11102 states. [2024-11-23 23:26:20,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11102 to 5480. [2024-11-23 23:26:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5479 states have (on average 1.482022266837014) internal successors, (8120), 5479 states have internal predecessors, (8120), 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 23:26:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 8120 transitions. [2024-11-23 23:26:20,974 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 8120 transitions. Word has length 119 [2024-11-23 23:26:20,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:20,975 INFO L471 AbstractCegarLoop]: Abstraction has 5480 states and 8120 transitions. [2024-11-23 23:26:20,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 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 23:26:20,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 8120 transitions. [2024-11-23 23:26:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 23:26:20,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:20,977 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] [2024-11-23 23:26:20,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 23:26:20,978 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:20,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:20,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1869611533, now seen corresponding path program 1 times [2024-11-23 23:26:20,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:20,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979380685] [2024-11-23 23:26:20,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:20,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:21,674 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 23:26:21,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:21,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979380685] [2024-11-23 23:26:21,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979380685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:21,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:21,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:26:21,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177635170] [2024-11-23 23:26:21,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:21,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:26:21,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:21,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:26:21,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:26:21,676 INFO L87 Difference]: Start difference. First operand 5480 states and 8120 transitions. Second operand has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 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 23:26:23,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:23,404 INFO L93 Difference]: Finished difference Result 13625 states and 20166 transitions. [2024-11-23 23:26:23,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:26:23,404 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 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 120 [2024-11-23 23:26:23,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:23,418 INFO L225 Difference]: With dead ends: 13625 [2024-11-23 23:26:23,418 INFO L226 Difference]: Without dead ends: 8342 [2024-11-23 23:26:23,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:26:23,422 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 1183 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:23,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 2014 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:26:23,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8342 states. [2024-11-23 23:26:23,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8342 to 5447. [2024-11-23 23:26:23,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 1.4827396254131473) internal successors, (8075), 5446 states have internal predecessors, (8075), 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 23:26:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 8075 transitions. [2024-11-23 23:26:23,505 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 8075 transitions. Word has length 120 [2024-11-23 23:26:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:23,505 INFO L471 AbstractCegarLoop]: Abstraction has 5447 states and 8075 transitions. [2024-11-23 23:26:23,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 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 23:26:23,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 8075 transitions. [2024-11-23 23:26:23,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 23:26:23,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:23,507 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] [2024-11-23 23:26:23,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 23:26:23,508 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:23,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:23,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2004710829, now seen corresponding path program 1 times [2024-11-23 23:26:23,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:23,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575990717] [2024-11-23 23:26:23,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:23,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:23,878 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 23:26:23,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:23,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575990717] [2024-11-23 23:26:23,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575990717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:23,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:23,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:23,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269970732] [2024-11-23 23:26:23,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:23,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:26:23,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:23,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:26:23,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:26:23,880 INFO L87 Difference]: Start difference. First operand 5447 states and 8075 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 9 states have internal predecessors, (120), 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 23:26:24,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:24,558 INFO L93 Difference]: Finished difference Result 16089 states and 23861 transitions. [2024-11-23 23:26:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:26:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 9 states have internal predecessors, (120), 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 120 [2024-11-23 23:26:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:24,578 INFO L225 Difference]: With dead ends: 16089 [2024-11-23 23:26:24,579 INFO L226 Difference]: Without dead ends: 10851 [2024-11-23 23:26:24,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:26:24,585 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 695 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:24,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 689 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:26:24,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10851 states. [2024-11-23 23:26:24,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10851 to 5447. [2024-11-23 23:26:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 1.4810870363569593) internal successors, (8066), 5446 states have internal predecessors, (8066), 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 23:26:24,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 8066 transitions. [2024-11-23 23:26:24,695 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 8066 transitions. Word has length 120 [2024-11-23 23:26:24,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:24,696 INFO L471 AbstractCegarLoop]: Abstraction has 5447 states and 8066 transitions. [2024-11-23 23:26:24,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 9 states have internal predecessors, (120), 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 23:26:24,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 8066 transitions. [2024-11-23 23:26:24,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:26:24,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:24,698 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] [2024-11-23 23:26:24,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 23:26:24,699 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:24,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:24,700 INFO L85 PathProgramCache]: Analyzing trace with hash -750192654, now seen corresponding path program 1 times [2024-11-23 23:26:24,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:24,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911546228] [2024-11-23 23:26:24,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:24,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:25,111 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 23:26:25,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:25,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911546228] [2024-11-23 23:26:25,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911546228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:25,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:25,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:26:25,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471933539] [2024-11-23 23:26:25,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:25,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:26:25,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:25,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:26:25,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:26:25,113 INFO L87 Difference]: Start difference. First operand 5447 states and 8066 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 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 23:26:26,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:26,065 INFO L93 Difference]: Finished difference Result 16014 states and 23732 transitions. [2024-11-23 23:26:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:26:26,066 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 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 121 [2024-11-23 23:26:26,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:26,085 INFO L225 Difference]: With dead ends: 16014 [2024-11-23 23:26:26,086 INFO L226 Difference]: Without dead ends: 10821 [2024-11-23 23:26:26,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:26:26,092 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 775 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:26,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1053 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:26:26,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10821 states. [2024-11-23 23:26:26,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10821 to 5447. [2024-11-23 23:26:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 1.479067205288285) internal successors, (8055), 5446 states have internal predecessors, (8055), 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 23:26:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 8055 transitions. [2024-11-23 23:26:26,210 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 8055 transitions. Word has length 121 [2024-11-23 23:26:26,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:26,210 INFO L471 AbstractCegarLoop]: Abstraction has 5447 states and 8055 transitions. [2024-11-23 23:26:26,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 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 23:26:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 8055 transitions. [2024-11-23 23:26:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:26:26,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:26,213 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] [2024-11-23 23:26:26,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 23:26:26,214 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:26,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:26,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1822130246, now seen corresponding path program 1 times [2024-11-23 23:26:26,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:26,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083345566] [2024-11-23 23:26:26,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:26,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:27,058 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 23:26:27,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:27,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083345566] [2024-11-23 23:26:27,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083345566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:27,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:27,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:26:27,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988883577] [2024-11-23 23:26:27,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:27,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:26:27,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:27,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:26:27,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:26:27,061 INFO L87 Difference]: Start difference. First operand 5447 states and 8055 transitions. Second operand has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 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 23:26:30,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:30,202 INFO L93 Difference]: Finished difference Result 32290 states and 47757 transitions. [2024-11-23 23:26:30,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 23:26:30,203 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 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 122 [2024-11-23 23:26:30,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:30,259 INFO L225 Difference]: With dead ends: 32290 [2024-11-23 23:26:30,259 INFO L226 Difference]: Without dead ends: 27022 [2024-11-23 23:26:30,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-11-23 23:26:30,270 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 1863 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:30,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 2802 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 23:26:30,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27022 states. [2024-11-23 23:26:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27022 to 5456. [2024-11-23 23:26:30,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 5455 states have (on average 1.4777268560953254) internal successors, (8061), 5455 states have internal predecessors, (8061), 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 23:26:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 8061 transitions. [2024-11-23 23:26:30,482 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 8061 transitions. Word has length 122 [2024-11-23 23:26:30,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:30,482 INFO L471 AbstractCegarLoop]: Abstraction has 5456 states and 8061 transitions. [2024-11-23 23:26:30,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 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 23:26:30,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 8061 transitions. [2024-11-23 23:26:30,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:26:30,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:30,485 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] [2024-11-23 23:26:30,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 23:26:30,487 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:30,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:30,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1982702915, now seen corresponding path program 1 times [2024-11-23 23:26:30,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:30,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417171502] [2024-11-23 23:26:30,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:30,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:31,820 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 23:26:31,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:31,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417171502] [2024-11-23 23:26:31,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417171502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:31,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:31,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:26:31,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789527252] [2024-11-23 23:26:31,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:31,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:26:31,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:31,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:26:31,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:26:31,824 INFO L87 Difference]: Start difference. First operand 5456 states and 8061 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 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 23:26:32,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:32,980 INFO L93 Difference]: Finished difference Result 11913 states and 17675 transitions. [2024-11-23 23:26:32,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:26:32,981 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 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 123 [2024-11-23 23:26:32,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:32,987 INFO L225 Difference]: With dead ends: 11913 [2024-11-23 23:26:32,987 INFO L226 Difference]: Without dead ends: 10639 [2024-11-23 23:26:32,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:26:32,991 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 1117 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:32,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 2334 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:26:32,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10639 states. [2024-11-23 23:26:33,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10639 to 5413. [2024-11-23 23:26:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5413 states, 5412 states have (on average 1.4774575018477458) internal successors, (7996), 5412 states have internal predecessors, (7996), 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 23:26:33,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5413 states to 5413 states and 7996 transitions. [2024-11-23 23:26:33,107 INFO L78 Accepts]: Start accepts. Automaton has 5413 states and 7996 transitions. Word has length 123 [2024-11-23 23:26:33,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:33,108 INFO L471 AbstractCegarLoop]: Abstraction has 5413 states and 7996 transitions. [2024-11-23 23:26:33,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 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 23:26:33,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5413 states and 7996 transitions. [2024-11-23 23:26:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:26:33,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:33,110 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] [2024-11-23 23:26:33,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 23:26:33,111 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:33,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash 676674274, now seen corresponding path program 1 times [2024-11-23 23:26:33,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:33,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069328269] [2024-11-23 23:26:33,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:33,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:38,368 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 23:26:38,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:38,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069328269] [2024-11-23 23:26:38,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069328269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:38,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:38,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2024-11-23 23:26:38,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616314092] [2024-11-23 23:26:38,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:38,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-23 23:26:38,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:38,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-23 23:26:38,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1761, Unknown=0, NotChecked=0, Total=1892 [2024-11-23 23:26:38,371 INFO L87 Difference]: Start difference. First operand 5413 states and 7996 transitions. Second operand has 44 states, 44 states have (on average 2.7954545454545454) internal successors, (123), 44 states have internal predecessors, (123), 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 23:26:59,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:59,070 INFO L93 Difference]: Finished difference Result 10996 states and 16274 transitions. [2024-11-23 23:26:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-23 23:26:59,070 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.7954545454545454) internal successors, (123), 44 states have internal predecessors, (123), 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 123 [2024-11-23 23:26:59,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:59,078 INFO L225 Difference]: With dead ends: 10996 [2024-11-23 23:26:59,078 INFO L226 Difference]: Without dead ends: 9798 [2024-11-23 23:26:59,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=936, Invalid=6036, Unknown=0, NotChecked=0, Total=6972 [2024-11-23 23:26:59,082 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 2147 mSDsluCounter, 21542 mSDsCounter, 0 mSdLazyCounter, 14920 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2147 SdHoareTripleChecker+Valid, 22413 SdHoareTripleChecker+Invalid, 14943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 14920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:59,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2147 Valid, 22413 Invalid, 14943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 14920 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2024-11-23 23:26:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9798 states. [2024-11-23 23:26:59,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9798 to 5445. [2024-11-23 23:26:59,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5444 states have (on average 1.476487876561352) internal successors, (8038), 5444 states have internal predecessors, (8038), 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 23:26:59,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8038 transitions. [2024-11-23 23:26:59,223 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8038 transitions. Word has length 123 [2024-11-23 23:26:59,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:59,224 INFO L471 AbstractCegarLoop]: Abstraction has 5445 states and 8038 transitions. [2024-11-23 23:26:59,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.7954545454545454) internal successors, (123), 44 states have internal predecessors, (123), 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 23:26:59,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8038 transitions. [2024-11-23 23:26:59,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:26:59,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:59,226 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] [2024-11-23 23:26:59,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 23:26:59,227 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:59,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:59,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1499704734, now seen corresponding path program 1 times [2024-11-23 23:26:59,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:59,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573064795] [2024-11-23 23:26:59,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:59,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:59,364 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 23:26:59,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:59,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573064795] [2024-11-23 23:26:59,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573064795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:59,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:59,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:26:59,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488741017] [2024-11-23 23:26:59,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:59,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:26:59,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:59,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:26:59,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:59,366 INFO L87 Difference]: Start difference. First operand 5445 states and 8038 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 23:26:59,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:59,424 INFO L93 Difference]: Finished difference Result 15345 states and 22872 transitions. [2024-11-23 23:26:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:26:59,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 123 [2024-11-23 23:26:59,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:59,436 INFO L225 Difference]: With dead ends: 15345 [2024-11-23 23:26:59,436 INFO L226 Difference]: Without dead ends: 10259 [2024-11-23 23:26:59,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:26:59,442 INFO L435 NwaCegarLoop]: 360 mSDtfsCounter, 131 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:59,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 555 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:26:59,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2024-11-23 23:26:59,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 9985. [2024-11-23 23:26:59,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9985 states, 9984 states have (on average 1.4748597756410255) internal successors, (14725), 9984 states have internal predecessors, (14725), 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 23:26:59,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9985 states to 9985 states and 14725 transitions. [2024-11-23 23:26:59,587 INFO L78 Accepts]: Start accepts. Automaton has 9985 states and 14725 transitions. Word has length 123 [2024-11-23 23:26:59,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:59,587 INFO L471 AbstractCegarLoop]: Abstraction has 9985 states and 14725 transitions. [2024-11-23 23:26:59,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 23:26:59,588 INFO L276 IsEmpty]: Start isEmpty. Operand 9985 states and 14725 transitions. [2024-11-23 23:26:59,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:26:59,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:59,589 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] [2024-11-23 23:26:59,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 23:26:59,590 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:59,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:59,590 INFO L85 PathProgramCache]: Analyzing trace with hash 507218245, now seen corresponding path program 1 times [2024-11-23 23:26:59,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:59,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475271044] [2024-11-23 23:26:59,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:59,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:01,225 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 23:27:01,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:01,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475271044] [2024-11-23 23:27:01,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475271044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:01,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:01,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-23 23:27:01,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523003636] [2024-11-23 23:27:01,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:01,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 23:27:01,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:01,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 23:27:01,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:27:01,227 INFO L87 Difference]: Start difference. First operand 9985 states and 14725 transitions. Second operand has 18 states, 18 states have (on average 6.833333333333333) internal successors, (123), 18 states have internal predecessors, (123), 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 23:27:03,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:03,039 INFO L93 Difference]: Finished difference Result 31573 states and 46768 transitions. [2024-11-23 23:27:03,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 23:27:03,040 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.833333333333333) internal successors, (123), 18 states have internal predecessors, (123), 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 123 [2024-11-23 23:27:03,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:03,066 INFO L225 Difference]: With dead ends: 31573 [2024-11-23 23:27:03,066 INFO L226 Difference]: Without dead ends: 29307 [2024-11-23 23:27:03,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=244, Invalid=878, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 23:27:03,075 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 1497 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3908 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:03,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 3908 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:27:03,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29307 states. [2024-11-23 23:27:03,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29307 to 9997. [2024-11-23 23:27:03,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9996 states have (on average 1.4749899959983994) internal successors, (14744), 9996 states have internal predecessors, (14744), 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 23:27:03,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 14744 transitions. [2024-11-23 23:27:03,340 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 14744 transitions. Word has length 123 [2024-11-23 23:27:03,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:03,340 INFO L471 AbstractCegarLoop]: Abstraction has 9997 states and 14744 transitions. [2024-11-23 23:27:03,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.833333333333333) internal successors, (123), 18 states have internal predecessors, (123), 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 23:27:03,341 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 14744 transitions. [2024-11-23 23:27:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:27:03,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:03,342 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] [2024-11-23 23:27:03,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 23:27:03,342 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:03,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:03,343 INFO L85 PathProgramCache]: Analyzing trace with hash 931032642, now seen corresponding path program 1 times [2024-11-23 23:27:03,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:03,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801768578] [2024-11-23 23:27:03,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:03,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:04,543 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 23:27:04,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:04,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801768578] [2024-11-23 23:27:04,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801768578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:04,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:04,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:27:04,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025658109] [2024-11-23 23:27:04,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:04,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:27:04,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:04,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:27:04,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:27:04,546 INFO L87 Difference]: Start difference. First operand 9997 states and 14744 transitions. Second operand has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 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 23:27:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:05,590 INFO L93 Difference]: Finished difference Result 41589 states and 61555 transitions. [2024-11-23 23:27:05,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:27:05,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 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 123 [2024-11-23 23:27:05,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:05,620 INFO L225 Difference]: With dead ends: 41589 [2024-11-23 23:27:05,620 INFO L226 Difference]: Without dead ends: 39263 [2024-11-23 23:27:05,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:27:05,636 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 1326 mSDsluCounter, 3521 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:05,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 4130 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:27:05,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39263 states. [2024-11-23 23:27:05,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39263 to 9962. [2024-11-23 23:27:05,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9962 states, 9961 states have (on average 1.4749523140246963) internal successors, (14692), 9961 states have internal predecessors, (14692), 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 23:27:05,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9962 states to 9962 states and 14692 transitions. [2024-11-23 23:27:05,914 INFO L78 Accepts]: Start accepts. Automaton has 9962 states and 14692 transitions. Word has length 123 [2024-11-23 23:27:05,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:05,914 INFO L471 AbstractCegarLoop]: Abstraction has 9962 states and 14692 transitions. [2024-11-23 23:27:05,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 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 23:27:05,915 INFO L276 IsEmpty]: Start isEmpty. Operand 9962 states and 14692 transitions. [2024-11-23 23:27:05,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:27:05,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:05,916 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] [2024-11-23 23:27:05,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-23 23:27:05,916 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:05,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash -480767036, now seen corresponding path program 1 times [2024-11-23 23:27:05,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:05,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115847079] [2024-11-23 23:27:05,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:05,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:06,778 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 23:27:06,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:06,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115847079] [2024-11-23 23:27:06,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115847079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:06,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:06,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:27:06,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794220888] [2024-11-23 23:27:06,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:06,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:27:06,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:06,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:27:06,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:27:06,780 INFO L87 Difference]: Start difference. First operand 9962 states and 14692 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 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 23:27:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:07,830 INFO L93 Difference]: Finished difference Result 13383 states and 19763 transitions. [2024-11-23 23:27:07,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:27:07,831 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 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 123 [2024-11-23 23:27:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:07,842 INFO L225 Difference]: With dead ends: 13383 [2024-11-23 23:27:07,842 INFO L226 Difference]: Without dead ends: 11032 [2024-11-23 23:27:07,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:27:07,847 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 1115 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:07,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 2719 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:27:07,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11032 states. [2024-11-23 23:27:07,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11032 to 9892. [2024-11-23 23:27:07,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9892 states, 9891 states have (on average 1.4760893741785461) internal successors, (14600), 9891 states have internal predecessors, (14600), 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 23:27:07,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9892 states to 9892 states and 14600 transitions. [2024-11-23 23:27:07,989 INFO L78 Accepts]: Start accepts. Automaton has 9892 states and 14600 transitions. Word has length 123 [2024-11-23 23:27:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:07,990 INFO L471 AbstractCegarLoop]: Abstraction has 9892 states and 14600 transitions. [2024-11-23 23:27:07,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 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 23:27:07,990 INFO L276 IsEmpty]: Start isEmpty. Operand 9892 states and 14600 transitions. [2024-11-23 23:27:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:27:07,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:07,991 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] [2024-11-23 23:27:07,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-23 23:27:07,991 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:07,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1272203549, now seen corresponding path program 1 times [2024-11-23 23:27:07,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:07,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743653400] [2024-11-23 23:27:07,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:07,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:08,422 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 23:27:08,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:08,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743653400] [2024-11-23 23:27:08,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743653400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:08,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:08,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:27:08,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149437841] [2024-11-23 23:27:08,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:08,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:27:08,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:08,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:27:08,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:27:08,424 INFO L87 Difference]: Start difference. First operand 9892 states and 14600 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 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 23:27:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:09,288 INFO L93 Difference]: Finished difference Result 29633 states and 43721 transitions. [2024-11-23 23:27:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:27:09,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 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 123 [2024-11-23 23:27:09,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:09,302 INFO L225 Difference]: With dead ends: 29633 [2024-11-23 23:27:09,302 INFO L226 Difference]: Without dead ends: 19901 [2024-11-23 23:27:09,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:27:09,311 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 785 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:09,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1080 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:27:09,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19901 states. [2024-11-23 23:27:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19901 to 9886. [2024-11-23 23:27:09,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9886 states, 9885 states have (on average 1.476074860900354) internal successors, (14591), 9885 states have internal predecessors, (14591), 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 23:27:09,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9886 states to 9886 states and 14591 transitions. [2024-11-23 23:27:09,459 INFO L78 Accepts]: Start accepts. Automaton has 9886 states and 14591 transitions. Word has length 123 [2024-11-23 23:27:09,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:09,460 INFO L471 AbstractCegarLoop]: Abstraction has 9886 states and 14591 transitions. [2024-11-23 23:27:09,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 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 23:27:09,460 INFO L276 IsEmpty]: Start isEmpty. Operand 9886 states and 14591 transitions. [2024-11-23 23:27:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:27:09,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:09,461 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] [2024-11-23 23:27:09,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-23 23:27:09,462 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:09,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:09,462 INFO L85 PathProgramCache]: Analyzing trace with hash 910555589, now seen corresponding path program 1 times [2024-11-23 23:27:09,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:09,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78899707] [2024-11-23 23:27:09,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:09,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:10,921 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 23:27:10,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:10,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78899707] [2024-11-23 23:27:10,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78899707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:10,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:10,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 23:27:10,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68670971] [2024-11-23 23:27:10,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:10,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:27:10,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:10,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:27:10,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:27:10,924 INFO L87 Difference]: Start difference. First operand 9886 states and 14591 transitions. Second operand has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 17 states have internal predecessors, (123), 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 23:27:12,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:12,516 INFO L93 Difference]: Finished difference Result 14463 states and 21368 transitions. [2024-11-23 23:27:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:27:12,517 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 17 states have internal predecessors, (123), 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 123 [2024-11-23 23:27:12,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:12,525 INFO L225 Difference]: With dead ends: 14463 [2024-11-23 23:27:12,525 INFO L226 Difference]: Without dead ends: 12160 [2024-11-23 23:27:12,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-11-23 23:27:12,530 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 1262 mSDsluCounter, 3516 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:12,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 3973 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:27:12,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12160 states. [2024-11-23 23:27:12,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12160 to 9886. [2024-11-23 23:27:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9886 states, 9885 states have (on average 1.4759736975214972) internal successors, (14590), 9885 states have internal predecessors, (14590), 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 23:27:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9886 states to 9886 states and 14590 transitions. [2024-11-23 23:27:12,655 INFO L78 Accepts]: Start accepts. Automaton has 9886 states and 14590 transitions. Word has length 123 [2024-11-23 23:27:12,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:12,655 INFO L471 AbstractCegarLoop]: Abstraction has 9886 states and 14590 transitions. [2024-11-23 23:27:12,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 17 states have internal predecessors, (123), 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 23:27:12,655 INFO L276 IsEmpty]: Start isEmpty. Operand 9886 states and 14590 transitions. [2024-11-23 23:27:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 23:27:12,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:12,657 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] [2024-11-23 23:27:12,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 23:27:12,657 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:12,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:12,658 INFO L85 PathProgramCache]: Analyzing trace with hash -357902790, now seen corresponding path program 1 times [2024-11-23 23:27:12,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:12,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451898732] [2024-11-23 23:27:12,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:12,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:13,643 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 23:27:13,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:13,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451898732] [2024-11-23 23:27:13,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451898732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:13,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:13,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:27:13,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127348287] [2024-11-23 23:27:13,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:13,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:27:13,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:13,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:27:13,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:27:13,646 INFO L87 Difference]: Start difference. First operand 9886 states and 14590 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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 23:27:14,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:14,470 INFO L93 Difference]: Finished difference Result 21815 states and 32294 transitions. [2024-11-23 23:27:14,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:27:14,471 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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 124 [2024-11-23 23:27:14,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:14,485 INFO L225 Difference]: With dead ends: 21815 [2024-11-23 23:27:14,485 INFO L226 Difference]: Without dead ends: 19519 [2024-11-23 23:27:14,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:27:14,490 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 1265 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:14,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 1605 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:27:14,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19519 states. [2024-11-23 23:27:14,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19519 to 9839. [2024-11-23 23:27:14,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9839 states, 9838 states have (on average 1.4767229111608051) internal successors, (14528), 9838 states have internal predecessors, (14528), 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 23:27:14,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9839 states to 9839 states and 14528 transitions. [2024-11-23 23:27:14,713 INFO L78 Accepts]: Start accepts. Automaton has 9839 states and 14528 transitions. Word has length 124 [2024-11-23 23:27:14,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:14,714 INFO L471 AbstractCegarLoop]: Abstraction has 9839 states and 14528 transitions. [2024-11-23 23:27:14,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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 23:27:14,714 INFO L276 IsEmpty]: Start isEmpty. Operand 9839 states and 14528 transitions. [2024-11-23 23:27:14,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 23:27:14,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:14,718 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] [2024-11-23 23:27:14,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-23 23:27:14,719 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:14,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:14,720 INFO L85 PathProgramCache]: Analyzing trace with hash -739623582, now seen corresponding path program 1 times [2024-11-23 23:27:14,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:14,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72386237] [2024-11-23 23:27:14,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:14,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:20,102 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 23:27:20,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:20,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72386237] [2024-11-23 23:27:20,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72386237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:20,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:20,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2024-11-23 23:27:20,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804589128] [2024-11-23 23:27:20,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:20,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-23 23:27:20,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:20,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-23 23:27:20,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1693, Unknown=0, NotChecked=0, Total=1806 [2024-11-23 23:27:20,105 INFO L87 Difference]: Start difference. First operand 9839 states and 14528 transitions. Second operand has 43 states, 43 states have (on average 2.883720930232558) internal successors, (124), 43 states have internal predecessors, (124), 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 23:27:37,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:37,842 INFO L93 Difference]: Finished difference Result 27522 states and 40700 transitions. [2024-11-23 23:27:37,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-23 23:27:37,843 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.883720930232558) internal successors, (124), 43 states have internal predecessors, (124), 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 124 [2024-11-23 23:27:37,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:37,956 INFO L225 Difference]: With dead ends: 27522 [2024-11-23 23:27:37,957 INFO L226 Difference]: Without dead ends: 17896 [2024-11-23 23:27:37,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=910, Invalid=5732, Unknown=0, NotChecked=0, Total=6642 [2024-11-23 23:27:37,987 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 2528 mSDsluCounter, 14394 mSDsCounter, 0 mSdLazyCounter, 10854 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2528 SdHoareTripleChecker+Valid, 14982 SdHoareTripleChecker+Invalid, 10875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 10854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:37,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2528 Valid, 14982 Invalid, 10875 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 10854 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-23 23:27:38,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17896 states. [2024-11-23 23:27:38,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17896 to 9870. [2024-11-23 23:27:38,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9870 states, 9869 states have (on average 1.475833417772824) internal successors, (14565), 9869 states have internal predecessors, (14565), 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 23:27:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9870 states to 9870 states and 14565 transitions. [2024-11-23 23:27:38,208 INFO L78 Accepts]: Start accepts. Automaton has 9870 states and 14565 transitions. Word has length 124 [2024-11-23 23:27:38,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:38,208 INFO L471 AbstractCegarLoop]: Abstraction has 9870 states and 14565 transitions. [2024-11-23 23:27:38,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.883720930232558) internal successors, (124), 43 states have internal predecessors, (124), 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 23:27:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 9870 states and 14565 transitions. [2024-11-23 23:27:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 23:27:38,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:38,210 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] [2024-11-23 23:27:38,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-23 23:27:38,210 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:38,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:38,211 INFO L85 PathProgramCache]: Analyzing trace with hash 931990942, now seen corresponding path program 1 times [2024-11-23 23:27:38,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:38,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859319661] [2024-11-23 23:27:38,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:38,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:39,284 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 23:27:39,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:39,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859319661] [2024-11-23 23:27:39,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859319661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:39,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:39,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:27:39,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423484847] [2024-11-23 23:27:39,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:39,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:27:39,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:39,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:27:39,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:27:39,289 INFO L87 Difference]: Start difference. First operand 9870 states and 14565 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 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 23:27:40,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:40,330 INFO L93 Difference]: Finished difference Result 41122 states and 60930 transitions. [2024-11-23 23:27:40,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:27:40,331 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 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 124 [2024-11-23 23:27:40,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:40,486 INFO L225 Difference]: With dead ends: 41122 [2024-11-23 23:27:40,486 INFO L226 Difference]: Without dead ends: 38816 [2024-11-23 23:27:40,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:27:40,506 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 1052 mSDsluCounter, 3716 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 4297 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:40,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 4297 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:27:40,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38816 states. [2024-11-23 23:27:40,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38816 to 9829. [2024-11-23 23:27:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9829 states, 9828 states have (on average 1.4768009768009769) internal successors, (14514), 9828 states have internal predecessors, (14514), 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 23:27:40,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9829 states to 9829 states and 14514 transitions. [2024-11-23 23:27:40,970 INFO L78 Accepts]: Start accepts. Automaton has 9829 states and 14514 transitions. Word has length 124 [2024-11-23 23:27:40,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:40,970 INFO L471 AbstractCegarLoop]: Abstraction has 9829 states and 14514 transitions. [2024-11-23 23:27:40,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 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 23:27:40,971 INFO L276 IsEmpty]: Start isEmpty. Operand 9829 states and 14514 transitions. [2024-11-23 23:27:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:27:40,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:40,972 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] [2024-11-23 23:27:40,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-23 23:27:40,972 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:40,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:40,973 INFO L85 PathProgramCache]: Analyzing trace with hash -835295381, now seen corresponding path program 1 times [2024-11-23 23:27:40,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:40,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658586252] [2024-11-23 23:27:40,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:40,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:41,182 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 23:27:41,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:41,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658586252] [2024-11-23 23:27:41,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658586252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:41,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:41,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:27:41,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371999282] [2024-11-23 23:27:41,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:41,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:27:41,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:41,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:27:41,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:27:41,183 INFO L87 Difference]: Start difference. First operand 9829 states and 14514 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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 23:27:41,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:41,312 INFO L93 Difference]: Finished difference Result 23907 states and 35432 transitions. [2024-11-23 23:27:41,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:27:41,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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 125 [2024-11-23 23:27:41,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:41,326 INFO L225 Difference]: With dead ends: 23907 [2024-11-23 23:27:41,326 INFO L226 Difference]: Without dead ends: 14281 [2024-11-23 23:27:41,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:27:41,334 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 115 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:41,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 590 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:27:41,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14281 states. [2024-11-23 23:27:41,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14281 to 14215. [2024-11-23 23:27:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14215 states, 14214 states have (on average 1.47150696496412) internal successors, (20916), 14214 states have internal predecessors, (20916), 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 23:27:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14215 states to 14215 states and 20916 transitions. [2024-11-23 23:27:41,668 INFO L78 Accepts]: Start accepts. Automaton has 14215 states and 20916 transitions. Word has length 125 [2024-11-23 23:27:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:41,668 INFO L471 AbstractCegarLoop]: Abstraction has 14215 states and 20916 transitions. [2024-11-23 23:27:41,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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 23:27:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 14215 states and 20916 transitions. [2024-11-23 23:27:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:27:41,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:41,670 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] [2024-11-23 23:27:41,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-23 23:27:41,670 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:41,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:41,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2094379857, now seen corresponding path program 1 times [2024-11-23 23:27:41,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:41,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847360826] [2024-11-23 23:27:41,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:41,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:42,226 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 23:27:42,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:42,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847360826] [2024-11-23 23:27:42,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847360826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:42,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:42,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:27:42,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595349338] [2024-11-23 23:27:42,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:42,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:27:42,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:42,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:27:42,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:27:42,228 INFO L87 Difference]: Start difference. First operand 14215 states and 20916 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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 23:27:42,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:42,293 INFO L93 Difference]: Finished difference Result 14281 states and 21013 transitions. [2024-11-23 23:27:42,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:27:42,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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 125 [2024-11-23 23:27:42,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:42,307 INFO L225 Difference]: With dead ends: 14281 [2024-11-23 23:27:42,307 INFO L226 Difference]: Without dead ends: 14279 [2024-11-23 23:27:42,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:27:42,312 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:42,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 965 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:27:42,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14279 states. [2024-11-23 23:27:42,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14279 to 14279. [2024-11-23 23:27:42,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14279 states, 14278 states have (on average 1.4644908250455246) internal successors, (20910), 14278 states have internal predecessors, (20910), 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 23:27:42,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14279 states to 14279 states and 20910 transitions. [2024-11-23 23:27:42,601 INFO L78 Accepts]: Start accepts. Automaton has 14279 states and 20910 transitions. Word has length 125 [2024-11-23 23:27:42,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:42,601 INFO L471 AbstractCegarLoop]: Abstraction has 14279 states and 20910 transitions. [2024-11-23 23:27:42,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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 23:27:42,602 INFO L276 IsEmpty]: Start isEmpty. Operand 14279 states and 20910 transitions. [2024-11-23 23:27:42,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:27:42,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:42,602 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] [2024-11-23 23:27:42,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-23 23:27:42,603 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:42,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:42,603 INFO L85 PathProgramCache]: Analyzing trace with hash 2073770533, now seen corresponding path program 1 times [2024-11-23 23:27:42,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:42,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584813727] [2024-11-23 23:27:42,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:42,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:43,569 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 23:27:43,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:43,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584813727] [2024-11-23 23:27:43,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584813727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:43,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:43,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:27:43,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054372419] [2024-11-23 23:27:43,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:43,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:27:43,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:43,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:27:43,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:27:43,571 INFO L87 Difference]: Start difference. First operand 14279 states and 20910 transitions. Second operand has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 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 23:27:44,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:44,417 INFO L93 Difference]: Finished difference Result 30637 states and 44974 transitions. [2024-11-23 23:27:44,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:27:44,418 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 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 125 [2024-11-23 23:27:44,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:44,443 INFO L225 Difference]: With dead ends: 30637 [2024-11-23 23:27:44,443 INFO L226 Difference]: Without dead ends: 27776 [2024-11-23 23:27:44,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:27:44,452 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 773 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:44,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1902 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:27:44,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27776 states. [2024-11-23 23:27:44,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27776 to 13974. [2024-11-23 23:27:44,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13974 states, 13973 states have (on average 1.4654691190152438) internal successors, (20477), 13973 states have internal predecessors, (20477), 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 23:27:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13974 states to 13974 states and 20477 transitions. [2024-11-23 23:27:44,708 INFO L78 Accepts]: Start accepts. Automaton has 13974 states and 20477 transitions. Word has length 125 [2024-11-23 23:27:44,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:44,708 INFO L471 AbstractCegarLoop]: Abstraction has 13974 states and 20477 transitions. [2024-11-23 23:27:44,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 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 23:27:44,708 INFO L276 IsEmpty]: Start isEmpty. Operand 13974 states and 20477 transitions. [2024-11-23 23:27:44,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:27:44,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:44,709 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] [2024-11-23 23:27:44,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-23 23:27:44,709 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:44,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:44,710 INFO L85 PathProgramCache]: Analyzing trace with hash 370765968, now seen corresponding path program 1 times [2024-11-23 23:27:44,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:44,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163098180] [2024-11-23 23:27:44,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:44,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:45,614 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 23:27:45,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:45,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163098180] [2024-11-23 23:27:45,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163098180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:45,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:45,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:27:45,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347044415] [2024-11-23 23:27:45,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:45,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:27:45,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:45,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:27:45,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:27:45,615 INFO L87 Difference]: Start difference. First operand 13974 states and 20477 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 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 23:27:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:46,451 INFO L93 Difference]: Finished difference Result 30620 states and 44964 transitions. [2024-11-23 23:27:46,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:27:46,452 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 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 125 [2024-11-23 23:27:46,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:46,479 INFO L225 Difference]: With dead ends: 30620 [2024-11-23 23:27:46,479 INFO L226 Difference]: Without dead ends: 27790 [2024-11-23 23:27:46,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:27:46,487 INFO L435 NwaCegarLoop]: 326 mSDtfsCounter, 1052 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:46,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 2166 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:27:46,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27790 states. [2024-11-23 23:27:46,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27790 to 13976. [2024-11-23 23:27:46,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13976 states, 13975 states have (on average 1.465474060822898) internal successors, (20480), 13975 states have internal predecessors, (20480), 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 23:27:46,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13976 states to 13976 states and 20480 transitions. [2024-11-23 23:27:46,816 INFO L78 Accepts]: Start accepts. Automaton has 13976 states and 20480 transitions. Word has length 125 [2024-11-23 23:27:46,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:46,816 INFO L471 AbstractCegarLoop]: Abstraction has 13976 states and 20480 transitions. [2024-11-23 23:27:46,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 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 23:27:46,817 INFO L276 IsEmpty]: Start isEmpty. Operand 13976 states and 20480 transitions. [2024-11-23 23:27:46,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-23 23:27:46,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:46,821 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] [2024-11-23 23:27:46,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-23 23:27:46,821 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:46,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:46,821 INFO L85 PathProgramCache]: Analyzing trace with hash -636702584, now seen corresponding path program 1 times [2024-11-23 23:27:46,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:46,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364251160] [2024-11-23 23:27:46,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:46,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:27:47,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:47,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364251160] [2024-11-23 23:27:47,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364251160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:47,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:47,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:27:47,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552970596] [2024-11-23 23:27:47,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:47,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:27:47,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:47,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:27:47,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:27:47,097 INFO L87 Difference]: Start difference. First operand 13976 states and 20480 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 23:27:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:47,220 INFO L93 Difference]: Finished difference Result 28964 states and 42581 transitions. [2024-11-23 23:27:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:27:47,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 161 [2024-11-23 23:27:47,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:47,247 INFO L225 Difference]: With dead ends: 28964 [2024-11-23 23:27:47,247 INFO L226 Difference]: Without dead ends: 19272 [2024-11-23 23:27:47,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:27:47,258 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 108 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:47,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 537 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:27:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19272 states. [2024-11-23 23:27:47,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19272 to 18718. [2024-11-23 23:27:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18718 states, 18717 states have (on average 1.4619864294491638) internal successors, (27364), 18717 states have internal predecessors, (27364), 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 23:27:47,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18718 states to 18718 states and 27364 transitions. [2024-11-23 23:27:47,704 INFO L78 Accepts]: Start accepts. Automaton has 18718 states and 27364 transitions. Word has length 161 [2024-11-23 23:27:47,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:47,704 INFO L471 AbstractCegarLoop]: Abstraction has 18718 states and 27364 transitions. [2024-11-23 23:27:47,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 23:27:47,705 INFO L276 IsEmpty]: Start isEmpty. Operand 18718 states and 27364 transitions. [2024-11-23 23:27:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-23 23:27:47,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:47,708 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:27:47,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-23 23:27:47,709 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:47,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:47,709 INFO L85 PathProgramCache]: Analyzing trace with hash -577368140, now seen corresponding path program 1 times [2024-11-23 23:27:47,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:47,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005770553] [2024-11-23 23:27:47,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:47,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:27:47,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:47,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005770553] [2024-11-23 23:27:47,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005770553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:47,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:47,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:27:47,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679625324] [2024-11-23 23:27:47,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:47,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:27:47,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:47,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:27:47,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:27:47,991 INFO L87 Difference]: Start difference. First operand 18718 states and 27364 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 23:27:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:48,523 INFO L93 Difference]: Finished difference Result 80058 states and 117842 transitions. [2024-11-23 23:27:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:27:48,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 161 [2024-11-23 23:27:48,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:48,582 INFO L225 Difference]: With dead ends: 80058 [2024-11-23 23:27:48,582 INFO L226 Difference]: Without dead ends: 61532 [2024-11-23 23:27:48,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:27:48,601 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1423 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:48,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 488 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:27:48,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61532 states. [2024-11-23 23:27:49,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61532 to 39882. [2024-11-23 23:27:49,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39882 states, 39881 states have (on average 1.4596925854416891) internal successors, (58214), 39881 states have internal predecessors, (58214), 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 23:27:49,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39882 states to 39882 states and 58214 transitions. [2024-11-23 23:27:49,186 INFO L78 Accepts]: Start accepts. Automaton has 39882 states and 58214 transitions. Word has length 161 [2024-11-23 23:27:49,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:49,187 INFO L471 AbstractCegarLoop]: Abstraction has 39882 states and 58214 transitions. [2024-11-23 23:27:49,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 23:27:49,187 INFO L276 IsEmpty]: Start isEmpty. Operand 39882 states and 58214 transitions. [2024-11-23 23:27:49,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-23 23:27:49,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:49,189 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:27:49,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-23 23:27:49,189 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:49,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:49,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1637546944, now seen corresponding path program 1 times [2024-11-23 23:27:49,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:49,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770871056] [2024-11-23 23:27:49,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:49,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:27:49,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:49,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770871056] [2024-11-23 23:27:49,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770871056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:49,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:49,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:27:49,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440084848] [2024-11-23 23:27:49,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:49,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:27:49,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:49,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:27:49,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:27:49,398 INFO L87 Difference]: Start difference. First operand 39882 states and 58214 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 23:27:50,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:50,276 INFO L93 Difference]: Finished difference Result 157278 states and 230720 transitions. [2024-11-23 23:27:50,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:27:50,284 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 161 [2024-11-23 23:27:50,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:50,419 INFO L225 Difference]: With dead ends: 157278 [2024-11-23 23:27:50,419 INFO L226 Difference]: Without dead ends: 117588 [2024-11-23 23:27:50,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:27:50,442 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1338 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:50,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 486 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:27:50,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117588 states. [2024-11-23 23:27:51,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117588 to 84850. [2024-11-23 23:27:51,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84850 states, 84849 states have (on average 1.4568232978585487) internal successors, (123610), 84849 states have internal predecessors, (123610), 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 23:27:51,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84850 states to 84850 states and 123610 transitions. [2024-11-23 23:27:51,918 INFO L78 Accepts]: Start accepts. Automaton has 84850 states and 123610 transitions. Word has length 161 [2024-11-23 23:27:51,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:51,918 INFO L471 AbstractCegarLoop]: Abstraction has 84850 states and 123610 transitions. [2024-11-23 23:27:51,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 23:27:51,918 INFO L276 IsEmpty]: Start isEmpty. Operand 84850 states and 123610 transitions. [2024-11-23 23:27:51,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-23 23:27:51,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:51,920 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:27:51,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-23 23:27:51,921 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:51,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:51,921 INFO L85 PathProgramCache]: Analyzing trace with hash -61197795, now seen corresponding path program 1 times [2024-11-23 23:27:51,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:51,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407597586] [2024-11-23 23:27:51,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:51,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:27:52,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:52,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407597586] [2024-11-23 23:27:52,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407597586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:52,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:52,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:27:52,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85407810] [2024-11-23 23:27:52,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:52,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:27:52,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:52,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:27:52,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:27:52,435 INFO L87 Difference]: Start difference. First operand 84850 states and 123610 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 23:27:53,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:53,762 INFO L93 Difference]: Finished difference Result 309078 states and 451724 transitions. [2024-11-23 23:27:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:27:53,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 161 [2024-11-23 23:27:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:54,053 INFO L225 Difference]: With dead ends: 309078 [2024-11-23 23:27:54,053 INFO L226 Difference]: Without dead ends: 224420 [2024-11-23 23:27:54,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:27:54,112 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1253 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:54,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 484 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:27:54,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224420 states. [2024-11-23 23:27:56,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224420 to 180066. [2024-11-23 23:27:56,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180066 states, 180065 states have (on average 1.4538860966873073) internal successors, (261794), 180065 states have internal predecessors, (261794), 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 23:27:57,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180066 states to 180066 states and 261794 transitions. [2024-11-23 23:27:57,428 INFO L78 Accepts]: Start accepts. Automaton has 180066 states and 261794 transitions. Word has length 161 [2024-11-23 23:27:57,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:57,428 INFO L471 AbstractCegarLoop]: Abstraction has 180066 states and 261794 transitions. [2024-11-23 23:27:57,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 23:27:57,428 INFO L276 IsEmpty]: Start isEmpty. Operand 180066 states and 261794 transitions. [2024-11-23 23:27:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-23 23:27:57,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:57,432 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] [2024-11-23 23:27:57,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-23 23:27:57,432 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:57,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:57,439 INFO L85 PathProgramCache]: Analyzing trace with hash 415929941, now seen corresponding path program 1 times [2024-11-23 23:27:57,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:57,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74752094] [2024-11-23 23:27:57,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:57,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:57,691 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:27:57,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:57,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74752094] [2024-11-23 23:27:57,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74752094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:27:57,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615304884] [2024-11-23 23:27:57,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:57,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:27:57,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:27:57,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:27:57,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:27:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:58,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:27:58,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:27:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:27:58,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:27:59,212 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:27:59,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615304884] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:27:59,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:27:59,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-23 23:27:59,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918706274] [2024-11-23 23:27:59,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:27:59,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:27:59,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:59,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:27:59,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:27:59,215 INFO L87 Difference]: Start difference. First operand 180066 states and 261794 transitions. Second operand has 11 states, 11 states have (on average 26.09090909090909) internal successors, (287), 10 states have internal predecessors, (287), 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 23:28:01,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:01,787 INFO L93 Difference]: Finished difference Result 565158 states and 820868 transitions. [2024-11-23 23:28:01,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:28:01,788 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 26.09090909090909) internal successors, (287), 10 states have internal predecessors, (287), 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 161 [2024-11-23 23:28:01,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:02,249 INFO L225 Difference]: With dead ends: 565158 [2024-11-23 23:28:02,249 INFO L226 Difference]: Without dead ends: 385284 [2024-11-23 23:28:02,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 312 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:28:02,315 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 971 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:02,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 644 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:28:02,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385284 states. [2024-11-23 23:28:07,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385284 to 374722. [2024-11-23 23:28:07,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374722 states, 374721 states have (on average 1.447439561700572) internal successors, (542386), 374721 states have internal predecessors, (542386), 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 23:28:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374722 states to 374722 states and 542386 transitions. [2024-11-23 23:28:08,551 INFO L78 Accepts]: Start accepts. Automaton has 374722 states and 542386 transitions. Word has length 161 [2024-11-23 23:28:08,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:08,552 INFO L471 AbstractCegarLoop]: Abstraction has 374722 states and 542386 transitions. [2024-11-23 23:28:08,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 26.09090909090909) internal successors, (287), 10 states have internal predecessors, (287), 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 23:28:08,552 INFO L276 IsEmpty]: Start isEmpty. Operand 374722 states and 542386 transitions. [2024-11-23 23:28:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-23 23:28:08,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:08,559 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:28:08,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:28:08,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04a0282-2870-4a1e-8264-eb295feaf223/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:08,765 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:08,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:08,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1457401507, now seen corresponding path program 1 times [2024-11-23 23:28:08,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:08,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565689080] [2024-11-23 23:28:08,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:08,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:28:08,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:08,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565689080] [2024-11-23 23:28:08,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565689080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:08,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:08,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:28:08,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206526049] [2024-11-23 23:28:08,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:08,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:28:08,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:08,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:28:08,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:28:08,975 INFO L87 Difference]: Start difference. First operand 374722 states and 542386 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 23:28:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:13,871 INFO L93 Difference]: Finished difference Result 1244166 states and 1804148 transitions. [2024-11-23 23:28:13,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:28:13,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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 161 [2024-11-23 23:28:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:15,144 INFO L225 Difference]: With dead ends: 1244166 [2024-11-23 23:28:15,144 INFO L226 Difference]: Without dead ends: 869636 [2024-11-23 23:28:15,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:28:15,386 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1168 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:15,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 482 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:28:16,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869636 states.