./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.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_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/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_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/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_76b663f6-533e-44af-b850-93fe440bb178/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 24a2674686e3cd976907355f3a5c851b85884bd28355ffc3fa271cccc21387fd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:37:51,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:37:51,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:37:51,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:37:51,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:37:51,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:37:51,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:37:51,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:37:51,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:37:51,280 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:37:51,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:37:51,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:37:51,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:37:51,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:37:51,284 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:37:51,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:37:51,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:37:51,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:37:51,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:37:51,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:37:51,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:37:51,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:37:51,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:37:51,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:37:51,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:37:51,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:37:51,285 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:37:51,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:37:51,285 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:37:51,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:37:51,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:37:51,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:37:51,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:37:51,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:37:51,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:37:51,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:37:51,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:37:51,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:37:51,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:37:51,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:37:51,288 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:37:51,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:37:51,289 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:37:51,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:37:51,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:37:51,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:37:51,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:37:51,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:37:51,290 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_76b663f6-533e-44af-b850-93fe440bb178/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 -> 24a2674686e3cd976907355f3a5c851b85884bd28355ffc3fa271cccc21387fd [2024-11-24 01:37:51,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:37:51,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:37:51,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:37:51,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:37:51,737 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:37:51,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-24 01:37:55,167 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/data/c6845e0ff/ac46802cf91a44d188f017559703adf3/FLAGc8b2194af [2024-11-24 01:37:55,899 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:37:55,899 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-24 01:37:55,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/data/c6845e0ff/ac46802cf91a44d188f017559703adf3/FLAGc8b2194af [2024-11-24 01:37:55,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/data/c6845e0ff/ac46802cf91a44d188f017559703adf3 [2024-11-24 01:37:55,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:37:55,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:37:55,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:37:55,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:37:55,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:37:55,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:37:55" (1/1) ... [2024-11-24 01:37:55,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48199630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:55, skipping insertion in model container [2024-11-24 01:37:55,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:37:55" (1/1) ... [2024-11-24 01:37:56,125 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:37:56,557 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_76b663f6-533e-44af-b850-93fe440bb178/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c[11742,11755] [2024-11-24 01:37:56,649 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_76b663f6-533e-44af-b850-93fe440bb178/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c[17297,17310] [2024-11-24 01:37:57,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:37:57,676 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:37:57,741 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_76b663f6-533e-44af-b850-93fe440bb178/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c[11742,11755] [2024-11-24 01:37:57,765 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_76b663f6-533e-44af-b850-93fe440bb178/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c[17297,17310] [2024-11-24 01:37:58,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:37:58,420 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:37:58,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58 WrapperNode [2024-11-24 01:37:58,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:37:58,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:37:58,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:37:58,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:37:58,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:58,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:58,977 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5093 [2024-11-24 01:37:58,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:37:58,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:37:58,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:37:58,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:37:58,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:58,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,418 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]. [2024-11-24 01:37:59,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,604 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:37:59,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:37:59,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:37:59,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:37:59,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (1/1) ... [2024-11-24 01:37:59,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:37:59,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:37:59,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:37:59,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:37:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:37:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:37:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:37:59,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:38:00,112 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:38:00,115 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:38:07,580 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-24 01:38:07,581 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:38:07,633 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:38:07,633 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 01:38:07,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:38:07 BoogieIcfgContainer [2024-11-24 01:38:07,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:38:07,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:38:07,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:38:07,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:38:07,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:37:55" (1/3) ... [2024-11-24 01:38:07,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe82b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:38:07, skipping insertion in model container [2024-11-24 01:38:07,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:37:58" (2/3) ... [2024-11-24 01:38:07,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe82b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:38:07, skipping insertion in model container [2024-11-24 01:38:07,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:38:07" (3/3) ... [2024-11-24 01:38:07,649 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-24 01:38:07,670 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:38:07,673 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c that has 1 procedures, 899 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-24 01:38:07,779 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:38:07,804 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;@6d531cc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:38:07,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 01:38:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:07,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-24 01:38:07,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:07,828 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] [2024-11-24 01:38:07,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:07,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:07,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1798739915, now seen corresponding path program 1 times [2024-11-24 01:38:07,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:07,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979575884] [2024-11-24 01:38:07,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:08,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:08,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979575884] [2024-11-24 01:38:08,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979575884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:08,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:08,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:38:08,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112600541] [2024-11-24 01:38:08,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:08,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:38:08,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:08,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:38:08,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:38:08,243 INFO L87 Difference]: Start difference. First operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 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 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:08,365 INFO L93 Difference]: Finished difference Result 1759 states and 3342 transitions. [2024-11-24 01:38:08,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:38:08,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2024-11-24 01:38:08,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:08,389 INFO L225 Difference]: With dead ends: 1759 [2024-11-24 01:38:08,390 INFO L226 Difference]: Without dead ends: 833 [2024-11-24 01:38:08,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:38:08,400 INFO L435 NwaCegarLoop]: 1638 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:08,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1638 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:08,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-24 01:38:08,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-11-24 01:38:08,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 1.8941034897713598) internal successors, (1574), 832 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1574 transitions. [2024-11-24 01:38:08,543 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1574 transitions. Word has length 24 [2024-11-24 01:38:08,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:08,544 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1574 transitions. [2024-11-24 01:38:08,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1574 transitions. [2024-11-24 01:38:08,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-24 01:38:08,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:08,546 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] [2024-11-24 01:38:08,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:38:08,547 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:08,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash 502082675, now seen corresponding path program 1 times [2024-11-24 01:38:08,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:08,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573151614] [2024-11-24 01:38:08,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:08,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:08,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:08,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:08,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573151614] [2024-11-24 01:38:08,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573151614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:08,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:08,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:38:08,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511050183] [2024-11-24 01:38:08,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:08,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:38:08,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:08,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:38:08,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:38:08,987 INFO L87 Difference]: Start difference. First operand 833 states and 1574 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:09,181 INFO L93 Difference]: Finished difference Result 879 states and 1645 transitions. [2024-11-24 01:38:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:38:09,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-24 01:38:09,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:09,189 INFO L225 Difference]: With dead ends: 879 [2024-11-24 01:38:09,190 INFO L226 Difference]: Without dead ends: 833 [2024-11-24 01:38:09,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:38:09,194 INFO L435 NwaCegarLoop]: 1572 mSDtfsCounter, 0 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6252 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:09,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6252 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:38:09,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-24 01:38:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-11-24 01:38:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 1.8567990373044525) internal successors, (1543), 832 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:09,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1543 transitions. [2024-11-24 01:38:09,239 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1543 transitions. Word has length 24 [2024-11-24 01:38:09,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:09,240 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1543 transitions. [2024-11-24 01:38:09,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:09,240 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1543 transitions. [2024-11-24 01:38:09,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-24 01:38:09,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:09,243 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] [2024-11-24 01:38:09,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:38:09,243 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:09,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1974059925, now seen corresponding path program 1 times [2024-11-24 01:38:09,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:09,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558457276] [2024-11-24 01:38:09,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:09,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:09,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:09,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558457276] [2024-11-24 01:38:09,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558457276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:09,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:09,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:38:09,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099986529] [2024-11-24 01:38:09,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:09,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:09,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:09,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:09,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:09,437 INFO L87 Difference]: Start difference. First operand 833 states and 1543 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:15,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:15,589 INFO L93 Difference]: Finished difference Result 2337 states and 4416 transitions. [2024-11-24 01:38:15,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:15,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 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 48 [2024-11-24 01:38:15,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:15,600 INFO L225 Difference]: With dead ends: 2337 [2024-11-24 01:38:15,600 INFO L226 Difference]: Without dead ends: 1584 [2024-11-24 01:38:15,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:15,603 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 871 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:15,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 181 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-24 01:38:15,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-11-24 01:38:15,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1584. [2024-11-24 01:38:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1582 states have (on average 1.8445006321112516) internal successors, (2918), 1583 states have internal predecessors, (2918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:15,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2918 transitions. [2024-11-24 01:38:15,657 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2918 transitions. Word has length 48 [2024-11-24 01:38:15,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:15,657 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 2918 transitions. [2024-11-24 01:38:15,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:15,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2918 transitions. [2024-11-24 01:38:15,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 01:38:15,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:15,660 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] [2024-11-24 01:38:15,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:38:15,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:15,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:15,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1518044022, now seen corresponding path program 1 times [2024-11-24 01:38:15,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:15,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285950450] [2024-11-24 01:38:15,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:15,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:15,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:15,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:15,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285950450] [2024-11-24 01:38:15,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285950450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:15,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:15,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:38:15,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323686010] [2024-11-24 01:38:15,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:15,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:38:15,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:15,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:38:16,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:38:16,002 INFO L87 Difference]: Start difference. First operand 1584 states and 2918 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:16,351 INFO L93 Difference]: Finished difference Result 2004 states and 3588 transitions. [2024-11-24 01:38:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:38:16,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2024-11-24 01:38:16,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:16,362 INFO L225 Difference]: With dead ends: 2004 [2024-11-24 01:38:16,362 INFO L226 Difference]: Without dead ends: 1962 [2024-11-24 01:38:16,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:38:16,365 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 7953 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7953 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:16,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7953 Valid, 2746 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:38:16,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-24 01:38:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1624. [2024-11-24 01:38:16,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1622 states have (on average 1.8384710234278667) internal successors, (2982), 1623 states have internal predecessors, (2982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:16,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2982 transitions. [2024-11-24 01:38:16,430 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2982 transitions. Word has length 54 [2024-11-24 01:38:16,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:16,431 INFO L471 AbstractCegarLoop]: Abstraction has 1624 states and 2982 transitions. [2024-11-24 01:38:16,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2982 transitions. [2024-11-24 01:38:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-24 01:38:16,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:16,436 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] [2024-11-24 01:38:16,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:38:16,437 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:16,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:16,437 INFO L85 PathProgramCache]: Analyzing trace with hash 32878714, now seen corresponding path program 1 times [2024-11-24 01:38:16,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:16,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451143650] [2024-11-24 01:38:16,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:16,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:16,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:16,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451143650] [2024-11-24 01:38:16,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451143650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:16,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:16,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:16,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976043739] [2024-11-24 01:38:16,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:16,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:16,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:16,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:16,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:16,644 INFO L87 Difference]: Start difference. First operand 1624 states and 2982 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:16,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:16,702 INFO L93 Difference]: Finished difference Result 1777 states and 3225 transitions. [2024-11-24 01:38:16,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:16,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2024-11-24 01:38:16,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:16,712 INFO L225 Difference]: With dead ends: 1777 [2024-11-24 01:38:16,712 INFO L226 Difference]: Without dead ends: 1695 [2024-11-24 01:38:16,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:16,714 INFO L435 NwaCegarLoop]: 1541 mSDtfsCounter, 1482 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1603 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 [2024-11-24 01:38:16,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1603 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:16,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2024-11-24 01:38:16,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1693. [2024-11-24 01:38:16,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1691 states have (on average 1.8273211117681845) internal successors, (3090), 1692 states have internal predecessors, (3090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 3090 transitions. [2024-11-24 01:38:16,774 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 3090 transitions. Word has length 56 [2024-11-24 01:38:16,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:16,775 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 3090 transitions. [2024-11-24 01:38:16,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:16,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 3090 transitions. [2024-11-24 01:38:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-24 01:38:16,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:16,778 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] [2024-11-24 01:38:16,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:38:16,778 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:16,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash 99372226, now seen corresponding path program 1 times [2024-11-24 01:38:16,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:16,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906418669] [2024-11-24 01:38:16,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:17,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:17,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906418669] [2024-11-24 01:38:17,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906418669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:17,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:17,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:38:17,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529300003] [2024-11-24 01:38:17,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:17,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:38:17,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:17,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:38:17,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:38:17,275 INFO L87 Difference]: Start difference. First operand 1693 states and 3090 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:17,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:17,546 INFO L93 Difference]: Finished difference Result 1846 states and 3330 transitions. [2024-11-24 01:38:17,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:38:17,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2024-11-24 01:38:17,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:17,555 INFO L225 Difference]: With dead ends: 1846 [2024-11-24 01:38:17,555 INFO L226 Difference]: Without dead ends: 1695 [2024-11-24 01:38:17,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:38:17,558 INFO L435 NwaCegarLoop]: 1536 mSDtfsCounter, 4479 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4479 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:17,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4479 Valid, 1795 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:38:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2024-11-24 01:38:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1693. [2024-11-24 01:38:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1691 states have (on average 1.8261383796570076) internal successors, (3088), 1692 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:17,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 3088 transitions. [2024-11-24 01:38:17,618 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 3088 transitions. Word has length 56 [2024-11-24 01:38:17,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:17,618 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 3088 transitions. [2024-11-24 01:38:17,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:17,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 3088 transitions. [2024-11-24 01:38:17,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 01:38:17,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:17,620 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] [2024-11-24 01:38:17,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:38:17,620 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:17,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:17,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1629151369, now seen corresponding path program 1 times [2024-11-24 01:38:17,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:17,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110410485] [2024-11-24 01:38:17,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:17,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:18,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:18,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110410485] [2024-11-24 01:38:18,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110410485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:18,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:38:18,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134688542] [2024-11-24 01:38:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:18,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:38:18,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:18,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:38:18,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:38:18,196 INFO L87 Difference]: Start difference. First operand 1693 states and 3088 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:18,308 INFO L93 Difference]: Finished difference Result 1701 states and 3097 transitions. [2024-11-24 01:38:18,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:38:18,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2024-11-24 01:38:18,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:18,318 INFO L225 Difference]: With dead ends: 1701 [2024-11-24 01:38:18,319 INFO L226 Difference]: Without dead ends: 1699 [2024-11-24 01:38:18,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:38:18,320 INFO L435 NwaCegarLoop]: 1537 mSDtfsCounter, 0 mSDsluCounter, 9209 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10746 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:18,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10746 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:18,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2024-11-24 01:38:18,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2024-11-24 01:38:18,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1697 states have (on average 1.8226281673541544) internal successors, (3093), 1698 states have internal predecessors, (3093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 3093 transitions. [2024-11-24 01:38:18,379 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 3093 transitions. Word has length 57 [2024-11-24 01:38:18,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:18,380 INFO L471 AbstractCegarLoop]: Abstraction has 1699 states and 3093 transitions. [2024-11-24 01:38:18,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 3093 transitions. [2024-11-24 01:38:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:38:18,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:18,381 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] [2024-11-24 01:38:18,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:38:18,382 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:18,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:18,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1409361730, now seen corresponding path program 1 times [2024-11-24 01:38:18,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:18,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314649875] [2024-11-24 01:38:18,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:18,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:18,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:18,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:18,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314649875] [2024-11-24 01:38:18,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314649875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:18,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:18,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:18,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723349299] [2024-11-24 01:38:18,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:18,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:18,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:18,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:18,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:18,510 INFO L87 Difference]: Start difference. First operand 1699 states and 3093 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:18,552 INFO L93 Difference]: Finished difference Result 1869 states and 3354 transitions. [2024-11-24 01:38:18,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:18,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-24 01:38:18,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:18,560 INFO L225 Difference]: With dead ends: 1869 [2024-11-24 01:38:18,561 INFO L226 Difference]: Without dead ends: 1781 [2024-11-24 01:38:18,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:18,562 INFO L435 NwaCegarLoop]: 1595 mSDtfsCounter, 1496 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:18,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:18,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-24 01:38:18,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1779. [2024-11-24 01:38:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1777 states have (on average 1.8086662915025324) internal successors, (3214), 1778 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 3214 transitions. [2024-11-24 01:38:18,617 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 3214 transitions. Word has length 58 [2024-11-24 01:38:18,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:18,617 INFO L471 AbstractCegarLoop]: Abstraction has 1779 states and 3214 transitions. [2024-11-24 01:38:18,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 3214 transitions. [2024-11-24 01:38:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:38:18,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:18,618 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] [2024-11-24 01:38:18,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:38:18,619 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:18,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:18,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1383487166, now seen corresponding path program 1 times [2024-11-24 01:38:18,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:18,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743512325] [2024-11-24 01:38:18,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:18,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:18,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:18,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743512325] [2024-11-24 01:38:18,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743512325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:18,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:18,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:18,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220547067] [2024-11-24 01:38:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:18,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:18,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:18,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:18,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:18,709 INFO L87 Difference]: Start difference. First operand 1779 states and 3214 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:18,762 INFO L93 Difference]: Finished difference Result 2225 states and 3894 transitions. [2024-11-24 01:38:18,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:18,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-24 01:38:18,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:18,773 INFO L225 Difference]: With dead ends: 2225 [2024-11-24 01:38:18,774 INFO L226 Difference]: Without dead ends: 1990 [2024-11-24 01:38:18,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:18,776 INFO L435 NwaCegarLoop]: 1587 mSDtfsCounter, 1492 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:18,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:18,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-11-24 01:38:18,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1988. [2024-11-24 01:38:18,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1986 states have (on average 1.7754279959718027) internal successors, (3526), 1987 states have internal predecessors, (3526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 3526 transitions. [2024-11-24 01:38:18,842 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 3526 transitions. Word has length 58 [2024-11-24 01:38:18,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:18,842 INFO L471 AbstractCegarLoop]: Abstraction has 1988 states and 3526 transitions. [2024-11-24 01:38:18,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 3526 transitions. [2024-11-24 01:38:18,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:38:18,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:18,844 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] [2024-11-24 01:38:18,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:38:18,845 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:18,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:18,846 INFO L85 PathProgramCache]: Analyzing trace with hash 696011330, now seen corresponding path program 1 times [2024-11-24 01:38:18,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:18,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755890440] [2024-11-24 01:38:18,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:18,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:18,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:18,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755890440] [2024-11-24 01:38:18,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755890440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:18,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:18,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:18,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941069385] [2024-11-24 01:38:18,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:18,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:18,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:18,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:18,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:18,942 INFO L87 Difference]: Start difference. First operand 1988 states and 3526 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:18,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:19,000 INFO L93 Difference]: Finished difference Result 2828 states and 4788 transitions. [2024-11-24 01:38:19,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:19,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-24 01:38:19,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:19,012 INFO L225 Difference]: With dead ends: 2828 [2024-11-24 01:38:19,012 INFO L226 Difference]: Without dead ends: 2384 [2024-11-24 01:38:19,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:19,015 INFO L435 NwaCegarLoop]: 1585 mSDtfsCounter, 1490 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:19,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:19,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-11-24 01:38:19,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2382. [2024-11-24 01:38:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2380 states have (on average 1.723529411764706) internal successors, (4102), 2381 states have internal predecessors, (4102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 4102 transitions. [2024-11-24 01:38:19,101 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 4102 transitions. Word has length 58 [2024-11-24 01:38:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:19,101 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 4102 transitions. [2024-11-24 01:38:19,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:19,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 4102 transitions. [2024-11-24 01:38:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:38:19,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:19,102 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] [2024-11-24 01:38:19,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:38:19,102 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:19,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:19,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1818023102, now seen corresponding path program 1 times [2024-11-24 01:38:19,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:19,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729910356] [2024-11-24 01:38:19,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:19,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:19,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:19,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729910356] [2024-11-24 01:38:19,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729910356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:19,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:19,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:19,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018898408] [2024-11-24 01:38:19,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:19,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:19,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:19,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:19,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:19,200 INFO L87 Difference]: Start difference. First operand 2382 states and 4102 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:19,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:19,341 INFO L93 Difference]: Finished difference Result 3962 states and 6432 transitions. [2024-11-24 01:38:19,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:19,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-24 01:38:19,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:19,355 INFO L225 Difference]: With dead ends: 3962 [2024-11-24 01:38:19,355 INFO L226 Difference]: Without dead ends: 3124 [2024-11-24 01:38:19,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:19,360 INFO L435 NwaCegarLoop]: 1583 mSDtfsCounter, 1488 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:19,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1667 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2024-11-24 01:38:19,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 3122. [2024-11-24 01:38:19,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3120 states have (on average 1.653205128205128) internal successors, (5158), 3121 states have internal predecessors, (5158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 5158 transitions. [2024-11-24 01:38:19,482 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 5158 transitions. Word has length 58 [2024-11-24 01:38:19,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:19,482 INFO L471 AbstractCegarLoop]: Abstraction has 3122 states and 5158 transitions. [2024-11-24 01:38:19,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 5158 transitions. [2024-11-24 01:38:19,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:38:19,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:19,483 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] [2024-11-24 01:38:19,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:38:19,483 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:19,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:19,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1673218114, now seen corresponding path program 1 times [2024-11-24 01:38:19,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:19,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587465348] [2024-11-24 01:38:19,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:19,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:19,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:19,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587465348] [2024-11-24 01:38:19,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587465348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:19,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:19,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:19,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181575508] [2024-11-24 01:38:19,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:19,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:19,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:19,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:19,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:19,564 INFO L87 Difference]: Start difference. First operand 3122 states and 5158 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:19,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:19,665 INFO L93 Difference]: Finished difference Result 6086 states and 9432 transitions. [2024-11-24 01:38:19,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:19,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-24 01:38:19,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:19,683 INFO L225 Difference]: With dead ends: 6086 [2024-11-24 01:38:19,683 INFO L226 Difference]: Without dead ends: 4508 [2024-11-24 01:38:19,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:19,687 INFO L435 NwaCegarLoop]: 1597 mSDtfsCounter, 1494 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:19,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:19,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2024-11-24 01:38:19,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 4506. [2024-11-24 01:38:19,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4506 states, 4504 states have (on average 1.5714920071047958) internal successors, (7078), 4505 states have internal predecessors, (7078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:19,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4506 states to 4506 states and 7078 transitions. [2024-11-24 01:38:19,858 INFO L78 Accepts]: Start accepts. Automaton has 4506 states and 7078 transitions. Word has length 58 [2024-11-24 01:38:19,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:19,859 INFO L471 AbstractCegarLoop]: Abstraction has 4506 states and 7078 transitions. [2024-11-24 01:38:19,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:19,860 INFO L276 IsEmpty]: Start isEmpty. Operand 4506 states and 7078 transitions. [2024-11-24 01:38:19,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:38:19,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:19,863 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:19,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:38:19,863 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:19,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:19,864 INFO L85 PathProgramCache]: Analyzing trace with hash 273219202, now seen corresponding path program 1 times [2024-11-24 01:38:19,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:19,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520767967] [2024-11-24 01:38:19,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:19,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:20,117 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:38:20,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:20,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520767967] [2024-11-24 01:38:20,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520767967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:20,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:20,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:38:20,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93557399] [2024-11-24 01:38:20,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:20,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:38:20,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:20,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:38:20,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:38:20,120 INFO L87 Difference]: Start difference. First operand 4506 states and 7078 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:20,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:20,640 INFO L93 Difference]: Finished difference Result 19110 states and 27884 transitions. [2024-11-24 01:38:20,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:38:20,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 77 [2024-11-24 01:38:20,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:20,687 INFO L225 Difference]: With dead ends: 19110 [2024-11-24 01:38:20,687 INFO L226 Difference]: Without dead ends: 16996 [2024-11-24 01:38:20,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:38:20,695 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6307 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:20,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6307 Valid, 3568 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:38:20,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16996 states. [2024-11-24 01:38:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16996 to 7050. [2024-11-24 01:38:21,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 7048 states have (on average 1.5127695800227015) internal successors, (10662), 7049 states have internal predecessors, (10662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 10662 transitions. [2024-11-24 01:38:21,078 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 10662 transitions. Word has length 77 [2024-11-24 01:38:21,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:21,079 INFO L471 AbstractCegarLoop]: Abstraction has 7050 states and 10662 transitions. [2024-11-24 01:38:21,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:21,079 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 10662 transitions. [2024-11-24 01:38:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:38:21,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:21,082 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:21,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:38:21,083 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:21,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1775337602, now seen corresponding path program 1 times [2024-11-24 01:38:21,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:21,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672614003] [2024-11-24 01:38:21,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:21,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:21,324 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 01:38:21,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:21,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672614003] [2024-11-24 01:38:21,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672614003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:21,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:21,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:38:21,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700213298] [2024-11-24 01:38:21,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:21,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:38:21,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:21,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:38:21,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:38:21,327 INFO L87 Difference]: Start difference. First operand 7050 states and 10662 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:22,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:22,067 INFO L93 Difference]: Finished difference Result 22070 states and 32076 transitions. [2024-11-24 01:38:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:38:22,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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 77 [2024-11-24 01:38:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:22,119 INFO L225 Difference]: With dead ends: 22070 [2024-11-24 01:38:22,120 INFO L226 Difference]: Without dead ends: 19108 [2024-11-24 01:38:22,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:38:22,129 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6351 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6351 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:22,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6351 Valid, 3615 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:38:22,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19108 states. [2024-11-24 01:38:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19108 to 11066. [2024-11-24 01:38:22,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11066 states, 11064 states have (on average 1.4741503976861894) internal successors, (16310), 11065 states have internal predecessors, (16310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:22,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11066 states to 11066 states and 16310 transitions. [2024-11-24 01:38:22,680 INFO L78 Accepts]: Start accepts. Automaton has 11066 states and 16310 transitions. Word has length 77 [2024-11-24 01:38:22,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:22,680 INFO L471 AbstractCegarLoop]: Abstraction has 11066 states and 16310 transitions. [2024-11-24 01:38:22,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:22,680 INFO L276 IsEmpty]: Start isEmpty. Operand 11066 states and 16310 transitions. [2024-11-24 01:38:22,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:38:22,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:22,685 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:22,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:38:22,686 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:22,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:22,687 INFO L85 PathProgramCache]: Analyzing trace with hash -440131198, now seen corresponding path program 1 times [2024-11-24 01:38:22,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:22,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308400042] [2024-11-24 01:38:22,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:22,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:22,951 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 01:38:22,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:22,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308400042] [2024-11-24 01:38:22,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308400042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:22,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:22,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:38:22,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124716665] [2024-11-24 01:38:22,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:22,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:38:22,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:22,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:38:22,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:38:22,953 INFO L87 Difference]: Start difference. First operand 11066 states and 16310 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:23,774 INFO L93 Difference]: Finished difference Result 25030 states and 36252 transitions. [2024-11-24 01:38:23,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:38:23,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 77 [2024-11-24 01:38:23,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:23,836 INFO L225 Difference]: With dead ends: 25030 [2024-11-24 01:38:23,836 INFO L226 Difference]: Without dead ends: 22068 [2024-11-24 01:38:23,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:38:23,848 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 6399 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6399 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:23,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6399 Valid, 3562 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:38:23,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22068 states. [2024-11-24 01:38:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22068 to 14026. [2024-11-24 01:38:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14026 states, 14024 states have (on average 1.460781517398745) internal successors, (20486), 14025 states have internal predecessors, (20486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14026 states to 14026 states and 20486 transitions. [2024-11-24 01:38:24,656 INFO L78 Accepts]: Start accepts. Automaton has 14026 states and 20486 transitions. Word has length 77 [2024-11-24 01:38:24,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:24,657 INFO L471 AbstractCegarLoop]: Abstraction has 14026 states and 20486 transitions. [2024-11-24 01:38:24,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:24,657 INFO L276 IsEmpty]: Start isEmpty. Operand 14026 states and 20486 transitions. [2024-11-24 01:38:24,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:38:24,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:24,660 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:24,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:38:24,661 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:24,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:24,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1340801666, now seen corresponding path program 1 times [2024-11-24 01:38:24,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:24,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730946330] [2024-11-24 01:38:24,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:24,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:24,929 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 01:38:24,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:24,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730946330] [2024-11-24 01:38:24,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730946330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:24,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:24,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:38:24,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111440443] [2024-11-24 01:38:24,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:24,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:38:24,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:24,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:38:24,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:38:24,932 INFO L87 Difference]: Start difference. First operand 14026 states and 20486 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:25,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:25,687 INFO L93 Difference]: Finished difference Result 27990 states and 40428 transitions. [2024-11-24 01:38:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:38:25,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 77 [2024-11-24 01:38:25,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:25,759 INFO L225 Difference]: With dead ends: 27990 [2024-11-24 01:38:25,760 INFO L226 Difference]: Without dead ends: 25028 [2024-11-24 01:38:25,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:38:25,773 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 6355 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6355 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:25,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6355 Valid, 3604 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:38:25,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25028 states. [2024-11-24 01:38:26,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25028 to 16986. [2024-11-24 01:38:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16986 states, 16984 states have (on average 1.4520725388601037) internal successors, (24662), 16985 states have internal predecessors, (24662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16986 states to 16986 states and 24662 transitions. [2024-11-24 01:38:26,509 INFO L78 Accepts]: Start accepts. Automaton has 16986 states and 24662 transitions. Word has length 77 [2024-11-24 01:38:26,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:26,510 INFO L471 AbstractCegarLoop]: Abstraction has 16986 states and 24662 transitions. [2024-11-24 01:38:26,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 16986 states and 24662 transitions. [2024-11-24 01:38:26,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:38:26,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:26,513 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:26,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:38:26,514 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:26,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:26,514 INFO L85 PathProgramCache]: Analyzing trace with hash 537075586, now seen corresponding path program 1 times [2024-11-24 01:38:26,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:26,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910860471] [2024-11-24 01:38:26,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:26,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 01:38:26,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:26,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910860471] [2024-11-24 01:38:26,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910860471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:26,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:26,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:38:26,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925791679] [2024-11-24 01:38:26,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:26,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:38:26,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:26,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:38:26,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:38:26,740 INFO L87 Difference]: Start difference. First operand 16986 states and 24662 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:27,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:27,660 INFO L93 Difference]: Finished difference Result 30950 states and 44604 transitions. [2024-11-24 01:38:27,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:38:27,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 77 [2024-11-24 01:38:27,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:27,723 INFO L225 Difference]: With dead ends: 30950 [2024-11-24 01:38:27,723 INFO L226 Difference]: Without dead ends: 27988 [2024-11-24 01:38:27,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:38:27,736 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 6307 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:27,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6307 Valid, 3698 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:38:27,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27988 states. [2024-11-24 01:38:28,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27988 to 19946. [2024-11-24 01:38:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19946 states, 19944 states have (on average 1.4459486562374648) internal successors, (28838), 19945 states have internal predecessors, (28838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19946 states to 19946 states and 28838 transitions. [2024-11-24 01:38:28,568 INFO L78 Accepts]: Start accepts. Automaton has 19946 states and 28838 transitions. Word has length 77 [2024-11-24 01:38:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:28,569 INFO L471 AbstractCegarLoop]: Abstraction has 19946 states and 28838 transitions. [2024-11-24 01:38:28,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 19946 states and 28838 transitions. [2024-11-24 01:38:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-24 01:38:28,573 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:28,573 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:28,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:38:28,574 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:28,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:28,574 INFO L85 PathProgramCache]: Analyzing trace with hash 895246760, now seen corresponding path program 1 times [2024-11-24 01:38:28,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:28,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676800863] [2024-11-24 01:38:28,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:28,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:28,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:28,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676800863] [2024-11-24 01:38:28,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676800863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:28,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:28,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:28,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91064032] [2024-11-24 01:38:28,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:28,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:28,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:28,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:28,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:28,718 INFO L87 Difference]: Start difference. First operand 19946 states and 28838 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:29,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:29,422 INFO L93 Difference]: Finished difference Result 38350 states and 54824 transitions. [2024-11-24 01:38:29,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:29,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-11-24 01:38:29,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:29,477 INFO L225 Difference]: With dead ends: 38350 [2024-11-24 01:38:29,477 INFO L226 Difference]: Without dead ends: 19948 [2024-11-24 01:38:29,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:29,494 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 45 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:29,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19948 states. [2024-11-24 01:38:30,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19948 to 19946. [2024-11-24 01:38:30,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19946 states, 19944 states have (on average 1.4311070998796631) internal successors, (28542), 19945 states have internal predecessors, (28542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19946 states to 19946 states and 28542 transitions. [2024-11-24 01:38:30,232 INFO L78 Accepts]: Start accepts. Automaton has 19946 states and 28542 transitions. Word has length 78 [2024-11-24 01:38:30,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:30,233 INFO L471 AbstractCegarLoop]: Abstraction has 19946 states and 28542 transitions. [2024-11-24 01:38:30,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:30,233 INFO L276 IsEmpty]: Start isEmpty. Operand 19946 states and 28542 transitions. [2024-11-24 01:38:30,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 01:38:30,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:30,237 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:30,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:38:30,237 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:30,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:30,238 INFO L85 PathProgramCache]: Analyzing trace with hash -615640646, now seen corresponding path program 1 times [2024-11-24 01:38:30,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:30,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783730839] [2024-11-24 01:38:30,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:30,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:30,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783730839] [2024-11-24 01:38:30,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783730839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:30,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:30,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:30,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320988201] [2024-11-24 01:38:30,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:30,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:30,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:30,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:30,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:30,385 INFO L87 Difference]: Start difference. First operand 19946 states and 28542 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:30,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:30,640 INFO L93 Difference]: Finished difference Result 26833 states and 38236 transitions. [2024-11-24 01:38:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:30,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2024-11-24 01:38:30,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:30,659 INFO L225 Difference]: With dead ends: 26833 [2024-11-24 01:38:30,659 INFO L226 Difference]: Without dead ends: 8431 [2024-11-24 01:38:30,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:30,673 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 39 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:30,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:30,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8431 states. [2024-11-24 01:38:31,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8431 to 8423. [2024-11-24 01:38:31,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8423 states, 8421 states have (on average 1.4766654791592448) internal successors, (12435), 8422 states have internal predecessors, (12435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:31,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8423 states to 8423 states and 12435 transitions. [2024-11-24 01:38:31,129 INFO L78 Accepts]: Start accepts. Automaton has 8423 states and 12435 transitions. Word has length 79 [2024-11-24 01:38:31,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:31,130 INFO L471 AbstractCegarLoop]: Abstraction has 8423 states and 12435 transitions. [2024-11-24 01:38:31,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:31,130 INFO L276 IsEmpty]: Start isEmpty. Operand 8423 states and 12435 transitions. [2024-11-24 01:38:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-24 01:38:31,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:31,133 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:31,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:38:31,134 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:31,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:31,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1683802150, now seen corresponding path program 1 times [2024-11-24 01:38:31,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:31,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456701930] [2024-11-24 01:38:31,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:31,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:31,326 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:31,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:31,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456701930] [2024-11-24 01:38:31,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456701930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:31,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:31,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:31,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145966615] [2024-11-24 01:38:31,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:31,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:31,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:31,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:31,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:31,328 INFO L87 Difference]: Start difference. First operand 8423 states and 12435 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:31,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:31,513 INFO L93 Difference]: Finished difference Result 11859 states and 17221 transitions. [2024-11-24 01:38:31,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:31,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2024-11-24 01:38:31,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:31,525 INFO L225 Difference]: With dead ends: 11859 [2024-11-24 01:38:31,525 INFO L226 Difference]: Without dead ends: 4993 [2024-11-24 01:38:31,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:31,535 INFO L435 NwaCegarLoop]: 1569 mSDtfsCounter, 41 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:31,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3084 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2024-11-24 01:38:31,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4991. [2024-11-24 01:38:31,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4991 states, 4989 states have (on average 1.5231509320505112) internal successors, (7599), 4990 states have internal predecessors, (7599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:31,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7599 transitions. [2024-11-24 01:38:31,779 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7599 transitions. Word has length 80 [2024-11-24 01:38:31,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:31,780 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7599 transitions. [2024-11-24 01:38:31,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:31,780 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7599 transitions. [2024-11-24 01:38:31,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-24 01:38:31,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:31,783 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:31,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:38:31,784 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:31,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash 263472268, now seen corresponding path program 1 times [2024-11-24 01:38:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:31,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460385829] [2024-11-24 01:38:31,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:31,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:31,968 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:31,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:31,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460385829] [2024-11-24 01:38:31,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460385829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:31,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:31,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:31,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685096329] [2024-11-24 01:38:31,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:31,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:31,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:31,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:31,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:31,972 INFO L87 Difference]: Start difference. First operand 4991 states and 7599 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:32,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:32,095 INFO L93 Difference]: Finished difference Result 6711 states and 9967 transitions. [2024-11-24 01:38:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:32,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2024-11-24 01:38:32,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:32,106 INFO L225 Difference]: With dead ends: 6711 [2024-11-24 01:38:32,106 INFO L226 Difference]: Without dead ends: 3277 [2024-11-24 01:38:32,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:32,111 INFO L435 NwaCegarLoop]: 1562 mSDtfsCounter, 38 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:32,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3069 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:32,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2024-11-24 01:38:32,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3275. [2024-11-24 01:38:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3273 states have (on average 1.590895203177513) internal successors, (5207), 3274 states have internal predecessors, (5207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 5207 transitions. [2024-11-24 01:38:32,253 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 5207 transitions. Word has length 82 [2024-11-24 01:38:32,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:32,255 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 5207 transitions. [2024-11-24 01:38:32,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 5207 transitions. [2024-11-24 01:38:32,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:38:32,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:32,257 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:32,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:38:32,258 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:32,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:32,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1956730946, now seen corresponding path program 1 times [2024-11-24 01:38:32,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:32,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936305863] [2024-11-24 01:38:32,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:32,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:32,436 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:32,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:32,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936305863] [2024-11-24 01:38:32,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936305863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:32,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:32,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:38:32,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086052334] [2024-11-24 01:38:32,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:32,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:38:32,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:32,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:38:32,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:32,441 INFO L87 Difference]: Start difference. First operand 3275 states and 5207 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:32,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:32,523 INFO L93 Difference]: Finished difference Result 4137 states and 6379 transitions. [2024-11-24 01:38:32,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:38:32,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2024-11-24 01:38:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:32,536 INFO L225 Difference]: With dead ends: 4137 [2024-11-24 01:38:32,536 INFO L226 Difference]: Without dead ends: 2419 [2024-11-24 01:38:32,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:38:32,542 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 35 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:32,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3054 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:38:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2024-11-24 01:38:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2417. [2024-11-24 01:38:32,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2415 states have (on average 1.6662525879917185) internal successors, (4024), 2416 states have internal predecessors, (4024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:32,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 4024 transitions. [2024-11-24 01:38:32,632 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 4024 transitions. Word has length 84 [2024-11-24 01:38:32,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:32,632 INFO L471 AbstractCegarLoop]: Abstraction has 2417 states and 4024 transitions. [2024-11-24 01:38:32,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 4024 transitions. [2024-11-24 01:38:32,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 01:38:32,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:32,635 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:38:32,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:38:32,635 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:32,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1389986160, now seen corresponding path program 1 times [2024-11-24 01:38:32,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:32,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443896750] [2024-11-24 01:38:32,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:32,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:34,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:34,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443896750] [2024-11-24 01:38:34,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443896750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:38:34,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772357282] [2024-11-24 01:38:34,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:34,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:38:34,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:38:34,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:38:34,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:38:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:35,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 01:38:35,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:38:35,713 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:35,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:38:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772357282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:38:36,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:38:36,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 6] total 22 [2024-11-24 01:38:36,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754963336] [2024-11-24 01:38:36,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:38:36,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 01:38:36,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:36,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 01:38:36,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:38:36,366 INFO L87 Difference]: Start difference. First operand 2417 states and 4024 transitions. Second operand has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 22 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:42,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:42,536 INFO L93 Difference]: Finished difference Result 9420 states and 13221 transitions. [2024-11-24 01:38:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-24 01:38:42,536 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 22 states have internal predecessors, (245), 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 86 [2024-11-24 01:38:42,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:42,555 INFO L225 Difference]: With dead ends: 9420 [2024-11-24 01:38:42,555 INFO L226 Difference]: Without dead ends: 8474 [2024-11-24 01:38:42,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2341 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1137, Invalid=6173, Unknown=0, NotChecked=0, Total=7310 [2024-11-24 01:38:42,562 INFO L435 NwaCegarLoop]: 1538 mSDtfsCounter, 14385 mSDsluCounter, 9715 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14385 SdHoareTripleChecker+Valid, 11253 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:42,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14385 Valid, 11253 Invalid, 2151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [95 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 01:38:42,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2024-11-24 01:38:42,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 7756. [2024-11-24 01:38:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7756 states, 7754 states have (on average 1.4108847046685582) internal successors, (10940), 7755 states have internal predecessors, (10940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:42,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 10940 transitions. [2024-11-24 01:38:42,886 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 10940 transitions. Word has length 86 [2024-11-24 01:38:42,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:42,887 INFO L471 AbstractCegarLoop]: Abstraction has 7756 states and 10940 transitions. [2024-11-24 01:38:42,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 22 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:42,887 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 10940 transitions. [2024-11-24 01:38:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 01:38:42,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:42,889 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] [2024-11-24 01:38:42,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:38:43,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:38:43,090 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:43,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:43,091 INFO L85 PathProgramCache]: Analyzing trace with hash -629409436, now seen corresponding path program 1 times [2024-11-24 01:38:43,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:43,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064000482] [2024-11-24 01:38:43,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:43,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:44,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:44,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064000482] [2024-11-24 01:38:44,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064000482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:38:44,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145543328] [2024-11-24 01:38:44,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:44,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:38:44,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:38:44,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:38:44,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:38:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:44,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:38:44,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:38:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:45,538 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:38:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:47,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145543328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:38:47,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:38:47,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-24 01:38:47,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920553016] [2024-11-24 01:38:47,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:38:47,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-24 01:38:47,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:47,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-24 01:38:47,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:38:47,110 INFO L87 Difference]: Start difference. First operand 7756 states and 10940 transitions. Second operand has 28 states, 28 states have (on average 7.821428571428571) internal successors, (219), 27 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:49,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:49,721 INFO L93 Difference]: Finished difference Result 33198 states and 44208 transitions. [2024-11-24 01:38:49,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 01:38:49,722 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.821428571428571) internal successors, (219), 27 states have internal predecessors, (219), 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 87 [2024-11-24 01:38:49,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:49,752 INFO L225 Difference]: With dead ends: 33198 [2024-11-24 01:38:49,753 INFO L226 Difference]: Without dead ends: 27268 [2024-11-24 01:38:49,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=612, Invalid=2358, Unknown=0, NotChecked=0, Total=2970 [2024-11-24 01:38:49,765 INFO L435 NwaCegarLoop]: 1505 mSDtfsCounter, 21020 mSDsluCounter, 4958 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21020 SdHoareTripleChecker+Valid, 6463 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:49,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21020 Valid, 6463 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:38:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27268 states. [2024-11-24 01:38:50,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27268 to 27076. [2024-11-24 01:38:50,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27076 states, 27074 states have (on average 1.3288025411834232) internal successors, (35976), 27075 states have internal predecessors, (35976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27076 states to 27076 states and 35976 transitions. [2024-11-24 01:38:50,785 INFO L78 Accepts]: Start accepts. Automaton has 27076 states and 35976 transitions. Word has length 87 [2024-11-24 01:38:50,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:50,785 INFO L471 AbstractCegarLoop]: Abstraction has 27076 states and 35976 transitions. [2024-11-24 01:38:50,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.821428571428571) internal successors, (219), 27 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:50,785 INFO L276 IsEmpty]: Start isEmpty. Operand 27076 states and 35976 transitions. [2024-11-24 01:38:50,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 01:38:50,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:50,789 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] [2024-11-24 01:38:50,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:38:50,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:38:50,991 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:50,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:50,991 INFO L85 PathProgramCache]: Analyzing trace with hash -6722204, now seen corresponding path program 1 times [2024-11-24 01:38:50,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:50,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846865813] [2024-11-24 01:38:50,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:50,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:51,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:51,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846865813] [2024-11-24 01:38:51,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846865813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:38:51,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82656776] [2024-11-24 01:38:51,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:51,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:38:51,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:38:51,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:38:51,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:38:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:51,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:38:51,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:38:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:52,451 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:38:53,911 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:38:53,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82656776] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:38:53,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:38:53,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-24 01:38:53,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078759561] [2024-11-24 01:38:53,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:38:53,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 01:38:53,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:53,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 01:38:53,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:38:53,914 INFO L87 Difference]: Start difference. First operand 27076 states and 35976 transitions. Second operand has 25 states, 25 states have (on average 9.48) internal successors, (237), 24 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:38:57,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:57,746 INFO L93 Difference]: Finished difference Result 81574 states and 106985 transitions. [2024-11-24 01:38:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-24 01:38:57,747 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.48) internal successors, (237), 24 states have internal predecessors, (237), 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 87 [2024-11-24 01:38:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:57,807 INFO L225 Difference]: With dead ends: 81574 [2024-11-24 01:38:57,807 INFO L226 Difference]: Without dead ends: 56182 [2024-11-24 01:38:57,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=649, Invalid=2431, Unknown=0, NotChecked=0, Total=3080 [2024-11-24 01:38:57,823 INFO L435 NwaCegarLoop]: 1508 mSDtfsCounter, 17206 mSDsluCounter, 6406 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17206 SdHoareTripleChecker+Valid, 7914 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:57,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17206 Valid, 7914 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:38:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56182 states. [2024-11-24 01:39:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56182 to 52194. [2024-11-24 01:39:00,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52194 states, 52192 states have (on average 1.2841240036787247) internal successors, (67021), 52193 states have internal predecessors, (67021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52194 states to 52194 states and 67021 transitions. [2024-11-24 01:39:00,763 INFO L78 Accepts]: Start accepts. Automaton has 52194 states and 67021 transitions. Word has length 87 [2024-11-24 01:39:00,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:39:00,763 INFO L471 AbstractCegarLoop]: Abstraction has 52194 states and 67021 transitions. [2024-11-24 01:39:00,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.48) internal successors, (237), 24 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:00,764 INFO L276 IsEmpty]: Start isEmpty. Operand 52194 states and 67021 transitions. [2024-11-24 01:39:00,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 01:39:00,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:39:00,768 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] [2024-11-24 01:39:00,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:39:00,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:39:00,972 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:39:00,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:39:00,972 INFO L85 PathProgramCache]: Analyzing trace with hash 771056786, now seen corresponding path program 1 times [2024-11-24 01:39:00,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:39:00,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360711923] [2024-11-24 01:39:00,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:39:00,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:39:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:39:01,444 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:01,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:39:01,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360711923] [2024-11-24 01:39:01,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360711923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:39:01,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693783904] [2024-11-24 01:39:01,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:39:01,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:39:01,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:39:01,447 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:39:01,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:39:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:39:01,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:39:01,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:39:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:02,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:39:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:03,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693783904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:39:03,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:39:03,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-24 01:39:03,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044535476] [2024-11-24 01:39:03,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:39:03,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 01:39:03,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:39:03,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 01:39:03,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:39:03,487 INFO L87 Difference]: Start difference. First operand 52194 states and 67021 transitions. Second operand has 23 states, 23 states have (on average 8.391304347826088) internal successors, (193), 22 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:06,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:39:06,436 INFO L93 Difference]: Finished difference Result 102986 states and 131812 transitions. [2024-11-24 01:39:06,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:39:06,436 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.391304347826088) internal successors, (193), 22 states have internal predecessors, (193), 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 88 [2024-11-24 01:39:06,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:39:06,510 INFO L225 Difference]: With dead ends: 102986 [2024-11-24 01:39:06,510 INFO L226 Difference]: Without dead ends: 54118 [2024-11-24 01:39:06,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:39:06,544 INFO L435 NwaCegarLoop]: 1535 mSDtfsCounter, 10829 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10829 SdHoareTripleChecker+Valid, 4870 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:39:06,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10829 Valid, 4870 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:39:06,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54118 states. [2024-11-24 01:39:09,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54118 to 52834. [2024-11-24 01:39:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52834 states, 52832 states have (on average 1.2744170199878861) internal successors, (67330), 52833 states have internal predecessors, (67330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52834 states to 52834 states and 67330 transitions. [2024-11-24 01:39:09,190 INFO L78 Accepts]: Start accepts. Automaton has 52834 states and 67330 transitions. Word has length 88 [2024-11-24 01:39:09,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:39:09,191 INFO L471 AbstractCegarLoop]: Abstraction has 52834 states and 67330 transitions. [2024-11-24 01:39:09,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.391304347826088) internal successors, (193), 22 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:09,191 INFO L276 IsEmpty]: Start isEmpty. Operand 52834 states and 67330 transitions. [2024-11-24 01:39:09,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-24 01:39:09,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:39:09,193 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] [2024-11-24 01:39:09,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:39:09,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:39:09,394 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:39:09,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:39:09,394 INFO L85 PathProgramCache]: Analyzing trace with hash -861720172, now seen corresponding path program 1 times [2024-11-24 01:39:09,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:39:09,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049084592] [2024-11-24 01:39:09,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:39:09,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:39:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:39:10,124 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:10,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:39:10,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049084592] [2024-11-24 01:39:10,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049084592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:39:10,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692062064] [2024-11-24 01:39:10,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:39:10,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:39:10,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:39:10,129 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:39:10,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:39:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:39:10,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 01:39:10,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:39:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:11,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:39:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:12,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692062064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:39:12,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:39:12,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 30 [2024-11-24 01:39:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140515742] [2024-11-24 01:39:12,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:39:12,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 01:39:12,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:39:12,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 01:39:12,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:39:12,924 INFO L87 Difference]: Start difference. First operand 52834 states and 67330 transitions. Second operand has 30 states, 30 states have (on average 8.3) internal successors, (249), 30 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:17,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:39:17,673 INFO L93 Difference]: Finished difference Result 156448 states and 198441 transitions. [2024-11-24 01:39:17,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:39:17,674 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.3) internal successors, (249), 30 states have internal predecessors, (249), 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 89 [2024-11-24 01:39:17,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:39:17,807 INFO L225 Difference]: With dead ends: 156448 [2024-11-24 01:39:17,807 INFO L226 Difference]: Without dead ends: 108030 [2024-11-24 01:39:17,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=472, Invalid=1508, Unknown=0, NotChecked=0, Total=1980 [2024-11-24 01:39:17,844 INFO L435 NwaCegarLoop]: 1520 mSDtfsCounter, 13820 mSDsluCounter, 4968 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13820 SdHoareTripleChecker+Valid, 6488 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:39:17,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13820 Valid, 6488 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:39:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108030 states. [2024-11-24 01:39:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108030 to 106618. [2024-11-24 01:39:21,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106618 states, 106616 states have (on average 1.2515007128385984) internal successors, (133430), 106617 states have internal predecessors, (133430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:22,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106618 states to 106618 states and 133430 transitions. [2024-11-24 01:39:22,045 INFO L78 Accepts]: Start accepts. Automaton has 106618 states and 133430 transitions. Word has length 89 [2024-11-24 01:39:22,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:39:22,046 INFO L471 AbstractCegarLoop]: Abstraction has 106618 states and 133430 transitions. [2024-11-24 01:39:22,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.3) internal successors, (249), 30 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand 106618 states and 133430 transitions. [2024-11-24 01:39:22,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-24 01:39:22,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:39:22,051 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] [2024-11-24 01:39:22,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:39:22,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-24 01:39:22,256 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:39:22,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:39:22,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1712352226, now seen corresponding path program 1 times [2024-11-24 01:39:22,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:39:22,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337590588] [2024-11-24 01:39:22,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:39:22,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:39:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:39:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:23,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:39:23,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337590588] [2024-11-24 01:39:23,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337590588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:39:23,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706968924] [2024-11-24 01:39:23,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:39:23,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:39:23,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:39:23,387 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:39:23,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:39:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:39:23,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:39:23,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:39:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:24,458 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:39:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:26,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706968924] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:39:26,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:39:26,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 26 [2024-11-24 01:39:26,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698871719] [2024-11-24 01:39:26,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:39:26,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 01:39:26,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:39:26,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 01:39:26,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:39:26,119 INFO L87 Difference]: Start difference. First operand 106618 states and 133430 transitions. Second operand has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:31,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:39:31,317 INFO L93 Difference]: Finished difference Result 130640 states and 164457 transitions. [2024-11-24 01:39:31,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:39:31,318 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 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 90 [2024-11-24 01:39:31,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:39:31,470 INFO L225 Difference]: With dead ends: 130640 [2024-11-24 01:39:31,471 INFO L226 Difference]: Without dead ends: 99918 [2024-11-24 01:39:31,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=324, Invalid=1158, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 01:39:31,493 INFO L435 NwaCegarLoop]: 1504 mSDtfsCounter, 6677 mSDsluCounter, 13669 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6677 SdHoareTripleChecker+Valid, 15173 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:39:31,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6677 Valid, 15173 Invalid, 627 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [17 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:39:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99918 states. [2024-11-24 01:39:36,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99918 to 99914. [2024-11-24 01:39:36,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99914 states, 99912 states have (on average 1.2496396829209704) internal successors, (124854), 99913 states have internal predecessors, (124854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99914 states to 99914 states and 124854 transitions. [2024-11-24 01:39:36,197 INFO L78 Accepts]: Start accepts. Automaton has 99914 states and 124854 transitions. Word has length 90 [2024-11-24 01:39:36,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:39:36,197 INFO L471 AbstractCegarLoop]: Abstraction has 99914 states and 124854 transitions. [2024-11-24 01:39:36,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:39:36,197 INFO L276 IsEmpty]: Start isEmpty. Operand 99914 states and 124854 transitions. [2024-11-24 01:39:36,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-24 01:39:36,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:39:36,201 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] [2024-11-24 01:39:36,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:39:36,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:39:36,402 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:39:36,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:39:36,402 INFO L85 PathProgramCache]: Analyzing trace with hash 693585914, now seen corresponding path program 1 times [2024-11-24 01:39:36,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:39:36,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470281596] [2024-11-24 01:39:36,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:39:36,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:39:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:39:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:37,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:39:37,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470281596] [2024-11-24 01:39:37,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470281596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:39:37,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273236924] [2024-11-24 01:39:37,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:39:37,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:39:37,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:39:37,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:39:37,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b663f6-533e-44af-b850-93fe440bb178/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:39:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:39:37,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-24 01:39:37,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:39:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:39:53,357 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:40:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:40:06,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273236924] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:40:06,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:40:06,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 34, 34] total 79 [2024-11-24 01:40:06,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213741894] [2024-11-24 01:40:06,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:40:06,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2024-11-24 01:40:06,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:06,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2024-11-24 01:40:06,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=966, Invalid=5196, Unknown=0, NotChecked=0, Total=6162 [2024-11-24 01:40:06,569 INFO L87 Difference]: Start difference. First operand 99914 states and 124854 transitions. Second operand has 79 states, 79 states have (on average 3.1012658227848102) internal successors, (245), 79 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:40:14,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:40:28,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:40:32,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:40:41,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:40:45,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:40:54,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:40:58,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:41:02,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:41:31,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:51:08,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:51:08,495 INFO L93 Difference]: Finished difference Result 251970 states and 316064 transitions. [2024-11-24 01:51:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 330 states. [2024-11-24 01:51:08,497 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 3.1012658227848102) internal successors, (245), 79 states have internal predecessors, (245), 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 90 [2024-11-24 01:51:08,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:51:09,241 INFO L225 Difference]: With dead ends: 251970 [2024-11-24 01:51:09,242 INFO L226 Difference]: Without dead ends: 206394 [2024-11-24 01:51:09,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 390 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68761 ImplicationChecksByTransitivity, 598.9s TimeCoverageRelationStatistics Valid=28579, Invalid=124680, Unknown=13, NotChecked=0, Total=153272 [2024-11-24 01:51:09,406 INFO L435 NwaCegarLoop]: 1582 mSDtfsCounter, 29443 mSDsluCounter, 20906 mSDsCounter, 0 mSdLazyCounter, 8270 mSolverCounterSat, 216 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29443 SdHoareTripleChecker+Valid, 22488 SdHoareTripleChecker+Invalid, 8495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 8270 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:51:09,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29443 Valid, 22488 Invalid, 8495 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [216 Valid, 8270 Invalid, 9 Unknown, 0 Unchecked, 58.3s Time] [2024-11-24 01:51:09,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206394 states.