./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-42.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB --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 747883b17e6817a37cce043de685bd7a3db8df180c0d456a62fc3a4b558b3195 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:20:18,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:20:18,397 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:20:18,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:20:18,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:20:18,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:20:18,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:20:18,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:20:18,436 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:20:18,436 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:20:18,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:20:18,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:20:18,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:20:18,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:20:18,437 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:20:18,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:20:18,437 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:20:18,437 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:20:18,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:20:18,438 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:20:18,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:20:18,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:20:18,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:20:18,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:20:18,439 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:20:18,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:20:18,439 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:20:18,439 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:20:18,439 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:20:18,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:20:18,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:20:18,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:20:18,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:20:18,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:20:18,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:20:18,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:20:18,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:20:18,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:20:18,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:20:18,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:20:18,441 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:20:18,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:20:18,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:20:18,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:20:18,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:20:18,442 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:20:18,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:20:18,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:20:18,442 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_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 747883b17e6817a37cce043de685bd7a3db8df180c0d456a62fc3a4b558b3195 [2024-11-27 23:20:18,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:20:18,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:20:18,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:20:18,712 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:20:18,712 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:20:18,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-42.i [2024-11-27 23:20:21,908 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/data/7f8b3e821/8778a7976a8042b5bc9adb3f08bdd7ff/FLAGe69583448 [2024-11-27 23:20:22,240 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:20:22,241 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-42.i [2024-11-27 23:20:22,258 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/data/7f8b3e821/8778a7976a8042b5bc9adb3f08bdd7ff/FLAGe69583448 [2024-11-27 23:20:22,280 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/data/7f8b3e821/8778a7976a8042b5bc9adb3f08bdd7ff [2024-11-27 23:20:22,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:20:22,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:20:22,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:20:22,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:20:22,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:20:22,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:22,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d24fc17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22, skipping insertion in model container [2024-11-27 23:20:22,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:22,349 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:20:22,517 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_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-42.i[916,929] [2024-11-27 23:20:22,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:20:22,818 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:20:22,830 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_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-42.i[916,929] [2024-11-27 23:20:22,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:20:22,994 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:20:22,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22 WrapperNode [2024-11-27 23:20:22,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:20:22,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:20:22,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:20:22,996 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:20:23,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,145 INFO L138 Inliner]: procedures = 26, calls = 119, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 894 [2024-11-27 23:20:23,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:20:23,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:20:23,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:20:23,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:20:23,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,174 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,253 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]. [2024-11-27 23:20:23,253 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,279 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:20:23,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:20:23,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:20:23,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:20:23,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (1/1) ... [2024-11-27 23:20:23,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:20:23,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:23,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:20:23,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:20:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:20:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:20:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:20:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:20:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:20:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:20:23,618 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:20:23,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:20:25,488 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-27 23:20:25,488 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:20:25,516 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:20:25,520 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:20:25,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:20:25 BoogieIcfgContainer [2024-11-27 23:20:25,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:20:25,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:20:25,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:20:25,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:20:25,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:20:22" (1/3) ... [2024-11-27 23:20:25,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2b79f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:20:25, skipping insertion in model container [2024-11-27 23:20:25,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:22" (2/3) ... [2024-11-27 23:20:25,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2b79f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:20:25, skipping insertion in model container [2024-11-27 23:20:25,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:20:25" (3/3) ... [2024-11-27 23:20:25,536 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-42.i [2024-11-27 23:20:25,554 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:20:25,559 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-42.i that has 2 procedures, 367 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:20:25,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:20:25,672 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;@7e3a9a20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:20:25,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:20:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 367 states, 258 states have (on average 1.6007751937984496) internal successors, (413), 259 states have internal predecessors, (413), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-27 23:20:25,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-27 23:20:25,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:25,756 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:25,757 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:25,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:25,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1219021893, now seen corresponding path program 1 times [2024-11-27 23:20:25,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:25,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039521598] [2024-11-27 23:20:25,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:25,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:26,835 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 22050 trivial. 0 not checked. [2024-11-27 23:20:26,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:26,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039521598] [2024-11-27 23:20:26,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039521598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:26,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360476160] [2024-11-27 23:20:26,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:26,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:26,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:26,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:26,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:20:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:27,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:20:27,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:27,614 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 22050 trivial. 0 not checked. [2024-11-27 23:20:27,615 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:20:27,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360476160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:27,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:20:27,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:20:27,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750733029] [2024-11-27 23:20:27,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:27,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:20:27,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:27,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:20:27,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:20:27,653 INFO L87 Difference]: Start difference. First operand has 367 states, 258 states have (on average 1.6007751937984496) internal successors, (413), 259 states have internal predecessors, (413), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 2 states have call successors, (106) [2024-11-27 23:20:27,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:27,761 INFO L93 Difference]: Finished difference Result 722 states and 1342 transitions. [2024-11-27 23:20:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:20:27,763 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 2 states have call successors, (106) Word has length 685 [2024-11-27 23:20:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:27,775 INFO L225 Difference]: With dead ends: 722 [2024-11-27 23:20:27,776 INFO L226 Difference]: Without dead ends: 358 [2024-11-27 23:20:27,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:20:27,788 INFO L435 NwaCegarLoop]: 606 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, 606 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 [2024-11-27 23:20:27,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:20:27,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-27 23:20:27,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-11-27 23:20:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 250 states have (on average 1.576) internal successors, (394), 250 states have internal predecessors, (394), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-27 23:20:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 606 transitions. [2024-11-27 23:20:27,916 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 606 transitions. Word has length 685 [2024-11-27 23:20:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:27,918 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 606 transitions. [2024-11-27 23:20:27,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 2 states have call successors, (106) [2024-11-27 23:20:27,919 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 606 transitions. [2024-11-27 23:20:27,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2024-11-27 23:20:27,942 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:27,943 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:27,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:20:28,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0110c75-5b2d-42be-ab80-06f7e9c3c38d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:20:28,147 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:28,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:28,150 INFO L85 PathProgramCache]: Analyzing trace with hash 17910286, now seen corresponding path program 1 times [2024-11-27 23:20:28,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:28,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464966090] [2024-11-27 23:20:28,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:28,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:29,379 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:20:29,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:29,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464966090] [2024-11-27 23:20:29,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464966090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:29,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:29,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:20:29,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741162170] [2024-11-27 23:20:29,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:29,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:20:29,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:29,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:20:29,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:29,387 INFO L87 Difference]: Start difference. First operand 358 states and 606 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:29,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:29,597 INFO L93 Difference]: Finished difference Result 1063 states and 1802 transitions. [2024-11-27 23:20:29,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:20:29,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 686 [2024-11-27 23:20:29,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:29,614 INFO L225 Difference]: With dead ends: 1063 [2024-11-27 23:20:29,616 INFO L226 Difference]: Without dead ends: 708 [2024-11-27 23:20:29,618 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 [2024-11-27 23:20:29,619 INFO L435 NwaCegarLoop]: 996 mSDtfsCounter, 568 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:29,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1578 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:20:29,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-27 23:20:29,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 706. [2024-11-27 23:20:29,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 491 states have (on average 1.560081466395112) internal successors, (766), 491 states have internal predecessors, (766), 212 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-27 23:20:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1190 transitions. [2024-11-27 23:20:29,804 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1190 transitions. Word has length 686 [2024-11-27 23:20:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:29,808 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 1190 transitions. [2024-11-27 23:20:29,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1190 transitions. [2024-11-27 23:20:29,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-11-27 23:20:29,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:29,838 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:29,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:20:29,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:29,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:29,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1418354838, now seen corresponding path program 1 times [2024-11-27 23:20:29,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:29,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239563025] [2024-11-27 23:20:29,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:29,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:20:30,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:30,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239563025] [2024-11-27 23:20:30,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239563025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:30,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:30,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:20:30,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092632937] [2024-11-27 23:20:30,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:30,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:20:30,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:30,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:20:30,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:30,514 INFO L87 Difference]: Start difference. First operand 706 states and 1190 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:30,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:30,661 INFO L93 Difference]: Finished difference Result 2109 states and 3559 transitions. [2024-11-27 23:20:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:20:30,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 687 [2024-11-27 23:20:30,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:30,673 INFO L225 Difference]: With dead ends: 2109 [2024-11-27 23:20:30,674 INFO L226 Difference]: Without dead ends: 1406 [2024-11-27 23:20:30,676 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 [2024-11-27 23:20:30,677 INFO L435 NwaCegarLoop]: 1098 mSDtfsCounter, 579 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:30,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:20:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2024-11-27 23:20:30,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1292. [2024-11-27 23:20:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 863 states have (on average 1.5283893395133257) internal successors, (1319), 863 states have internal predecessors, (1319), 424 states have call successors, (424), 4 states have call predecessors, (424), 4 states have return successors, (424), 424 states have call predecessors, (424), 424 states have call successors, (424) [2024-11-27 23:20:30,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 2167 transitions. [2024-11-27 23:20:30,956 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 2167 transitions. Word has length 687 [2024-11-27 23:20:30,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:30,958 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 2167 transitions. [2024-11-27 23:20:30,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:30,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 2167 transitions. [2024-11-27 23:20:30,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-11-27 23:20:30,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:30,967 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:30,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:20:30,968 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:30,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:30,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1356315224, now seen corresponding path program 1 times [2024-11-27 23:20:30,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:30,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290958510] [2024-11-27 23:20:30,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:30,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:20:32,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290958510] [2024-11-27 23:20:32,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290958510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:32,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:32,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:20:32,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905349862] [2024-11-27 23:20:32,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:32,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:20:32,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:32,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:20:32,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:20:32,050 INFO L87 Difference]: Start difference. First operand 1292 states and 2167 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:33,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:33,025 INFO L93 Difference]: Finished difference Result 4385 states and 7343 transitions. [2024-11-27 23:20:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:20:33,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 687 [2024-11-27 23:20:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:33,051 INFO L225 Difference]: With dead ends: 4385 [2024-11-27 23:20:33,051 INFO L226 Difference]: Without dead ends: 3096 [2024-11-27 23:20:33,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:20:33,059 INFO L435 NwaCegarLoop]: 1046 mSDtfsCounter, 1083 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:33,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 2068 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:20:33,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2024-11-27 23:20:33,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 1426. [2024-11-27 23:20:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 997 states have (on average 1.5646940822467401) internal successors, (1560), 997 states have internal predecessors, (1560), 424 states have call successors, (424), 4 states have call predecessors, (424), 4 states have return successors, (424), 424 states have call predecessors, (424), 424 states have call successors, (424) [2024-11-27 23:20:33,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2408 transitions. [2024-11-27 23:20:33,533 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2408 transitions. Word has length 687 [2024-11-27 23:20:33,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:33,537 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2408 transitions. [2024-11-27 23:20:33,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:33,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2408 transitions. [2024-11-27 23:20:33,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-11-27 23:20:33,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:33,545 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:33,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:20:33,546 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:33,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:33,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1093983099, now seen corresponding path program 1 times [2024-11-27 23:20:33,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:33,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961616299] [2024-11-27 23:20:33,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:33,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:34,133 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:20:34,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:34,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961616299] [2024-11-27 23:20:34,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961616299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:34,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:34,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:20:34,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072607905] [2024-11-27 23:20:34,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:34,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:20:34,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:34,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:20:34,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:34,140 INFO L87 Difference]: Start difference. First operand 1426 states and 2408 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:34,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:34,484 INFO L93 Difference]: Finished difference Result 4201 states and 7094 transitions. [2024-11-27 23:20:34,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:20:34,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 687 [2024-11-27 23:20:34,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:34,507 INFO L225 Difference]: With dead ends: 4201 [2024-11-27 23:20:34,507 INFO L226 Difference]: Without dead ends: 2778 [2024-11-27 23:20:34,513 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 [2024-11-27 23:20:34,514 INFO L435 NwaCegarLoop]: 793 mSDtfsCounter, 391 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:34,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1384 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:20:34,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2024-11-27 23:20:34,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2677. [2024-11-27 23:20:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 1820 states have (on average 1.5450549450549451) internal successors, (2812), 1820 states have internal predecessors, (2812), 848 states have call successors, (848), 8 states have call predecessors, (848), 8 states have return successors, (848), 848 states have call predecessors, (848), 848 states have call successors, (848) [2024-11-27 23:20:35,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 4508 transitions. [2024-11-27 23:20:35,023 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 4508 transitions. Word has length 687 [2024-11-27 23:20:35,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:35,025 INFO L471 AbstractCegarLoop]: Abstraction has 2677 states and 4508 transitions. [2024-11-27 23:20:35,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:35,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 4508 transitions. [2024-11-27 23:20:35,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-11-27 23:20:35,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:35,034 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:35,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:20:35,035 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:35,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:35,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2051429226, now seen corresponding path program 1 times [2024-11-27 23:20:35,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:35,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428315597] [2024-11-27 23:20:35,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:35,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:35,851 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:20:35,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:35,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428315597] [2024-11-27 23:20:35,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428315597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:35,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:35,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:20:35,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420670813] [2024-11-27 23:20:35,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:35,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:20:35,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:35,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:20:35,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:35,854 INFO L87 Difference]: Start difference. First operand 2677 states and 4508 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:36,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:36,161 INFO L93 Difference]: Finished difference Result 6500 states and 11033 transitions. [2024-11-27 23:20:36,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:20:36,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 687 [2024-11-27 23:20:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:36,189 INFO L225 Difference]: With dead ends: 6500 [2024-11-27 23:20:36,189 INFO L226 Difference]: Without dead ends: 3826 [2024-11-27 23:20:36,200 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 [2024-11-27 23:20:36,201 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 601 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:36,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1204 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:20:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2024-11-27 23:20:36,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 2677. [2024-11-27 23:20:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 1820 states have (on average 1.542857142857143) internal successors, (2808), 1820 states have internal predecessors, (2808), 848 states have call successors, (848), 8 states have call predecessors, (848), 8 states have return successors, (848), 848 states have call predecessors, (848), 848 states have call successors, (848) [2024-11-27 23:20:36,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 4504 transitions. [2024-11-27 23:20:36,641 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 4504 transitions. Word has length 687 [2024-11-27 23:20:36,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:36,644 INFO L471 AbstractCegarLoop]: Abstraction has 2677 states and 4504 transitions. [2024-11-27 23:20:36,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:36,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 4504 transitions. [2024-11-27 23:20:36,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-11-27 23:20:36,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:36,651 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:36,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:20:36,652 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:36,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:36,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1832574508, now seen corresponding path program 1 times [2024-11-27 23:20:36,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:36,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199107675] [2024-11-27 23:20:36,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:36,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:37,650 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:20:37,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:37,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199107675] [2024-11-27 23:20:37,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199107675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:37,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:37,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:20:37,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239034264] [2024-11-27 23:20:37,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:37,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:20:37,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:37,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:20:37,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:20:37,654 INFO L87 Difference]: Start difference. First operand 2677 states and 4504 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:38,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:38,400 INFO L93 Difference]: Finished difference Result 6269 states and 10554 transitions. [2024-11-27 23:20:38,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:20:38,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 687 [2024-11-27 23:20:38,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:38,425 INFO L225 Difference]: With dead ends: 6269 [2024-11-27 23:20:38,425 INFO L226 Difference]: Without dead ends: 3595 [2024-11-27 23:20:38,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:20:38,437 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 634 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:38,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1800 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:20:38,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2024-11-27 23:20:38,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3441. [2024-11-27 23:20:38,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 2477 states have (on average 1.572870407751312) internal successors, (3896), 2477 states have internal predecessors, (3896), 954 states have call successors, (954), 9 states have call predecessors, (954), 9 states have return successors, (954), 954 states have call predecessors, (954), 954 states have call successors, (954) [2024-11-27 23:20:38,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 5804 transitions. [2024-11-27 23:20:38,931 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 5804 transitions. Word has length 687 [2024-11-27 23:20:38,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:38,932 INFO L471 AbstractCegarLoop]: Abstraction has 3441 states and 5804 transitions. [2024-11-27 23:20:38,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:38,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 5804 transitions. [2024-11-27 23:20:38,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-27 23:20:38,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:38,940 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:38,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:20:38,940 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:38,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:38,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1201471494, now seen corresponding path program 1 times [2024-11-27 23:20:38,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:38,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779223200] [2024-11-27 23:20:38,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:38,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:40,054 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:20:40,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:40,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779223200] [2024-11-27 23:20:40,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779223200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:40,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:40,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:20:40,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102807093] [2024-11-27 23:20:40,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:40,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:20:40,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:40,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:20:40,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:20:40,058 INFO L87 Difference]: Start difference. First operand 3441 states and 5804 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:44,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:44,035 INFO L93 Difference]: Finished difference Result 17818 states and 29970 transitions. [2024-11-27 23:20:44,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:20:44,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 688 [2024-11-27 23:20:44,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:44,120 INFO L225 Difference]: With dead ends: 17818 [2024-11-27 23:20:44,120 INFO L226 Difference]: Without dead ends: 14671 [2024-11-27 23:20:44,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:20:44,135 INFO L435 NwaCegarLoop]: 905 mSDtfsCounter, 2755 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 4174 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:44,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 4174 Invalid, 1484 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [594 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 23:20:44,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14671 states. [2024-11-27 23:20:45,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14671 to 10569. [2024-11-27 23:20:45,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10569 states, 8077 states have (on average 1.5978704964714623) internal successors, (12906), 8093 states have internal predecessors, (12906), 2458 states have call successors, (2458), 33 states have call predecessors, (2458), 33 states have return successors, (2458), 2442 states have call predecessors, (2458), 2458 states have call successors, (2458) [2024-11-27 23:20:45,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10569 states to 10569 states and 17822 transitions. [2024-11-27 23:20:45,947 INFO L78 Accepts]: Start accepts. Automaton has 10569 states and 17822 transitions. Word has length 688 [2024-11-27 23:20:45,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:45,948 INFO L471 AbstractCegarLoop]: Abstraction has 10569 states and 17822 transitions. [2024-11-27 23:20:45,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:45,953 INFO L276 IsEmpty]: Start isEmpty. Operand 10569 states and 17822 transitions. [2024-11-27 23:20:45,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-27 23:20:45,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:45,966 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:45,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:20:45,968 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:45,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:45,970 INFO L85 PathProgramCache]: Analyzing trace with hash 336868536, now seen corresponding path program 1 times [2024-11-27 23:20:45,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:45,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800526593] [2024-11-27 23:20:45,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:45,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:47,307 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:20:47,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:47,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800526593] [2024-11-27 23:20:47,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800526593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:47,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:47,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:20:47,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467269970] [2024-11-27 23:20:47,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:47,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:20:47,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:47,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:20:47,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:47,311 INFO L87 Difference]: Start difference. First operand 10569 states and 17822 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:52,354 INFO L93 Difference]: Finished difference Result 60102 states and 101255 transitions. [2024-11-27 23:20:52,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:20:52,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 688 [2024-11-27 23:20:52,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:52,563 INFO L225 Difference]: With dead ends: 60102 [2024-11-27 23:20:52,563 INFO L226 Difference]: Without dead ends: 50508 [2024-11-27 23:20:52,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:20:52,612 INFO L435 NwaCegarLoop]: 795 mSDtfsCounter, 1802 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 3660 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:52,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 3660 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:20:52,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50508 states. [2024-11-27 23:20:55,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50508 to 23768. [2024-11-27 23:20:56,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23768 states, 19996 states have (on average 1.6624324864972995) internal successors, (33242), 20044 states have internal predecessors, (33242), 3706 states have call successors, (3706), 65 states have call predecessors, (3706), 65 states have return successors, (3706), 3658 states have call predecessors, (3706), 3706 states have call successors, (3706) [2024-11-27 23:20:56,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23768 states to 23768 states and 40654 transitions. [2024-11-27 23:20:56,109 INFO L78 Accepts]: Start accepts. Automaton has 23768 states and 40654 transitions. Word has length 688 [2024-11-27 23:20:56,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:56,111 INFO L471 AbstractCegarLoop]: Abstraction has 23768 states and 40654 transitions. [2024-11-27 23:20:56,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:20:56,111 INFO L276 IsEmpty]: Start isEmpty. Operand 23768 states and 40654 transitions. [2024-11-27 23:20:56,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-27 23:20:56,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:56,126 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:56,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:20:56,127 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:56,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:56,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2018936714, now seen corresponding path program 1 times [2024-11-27 23:20:56,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:56,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571401016] [2024-11-27 23:20:56,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:56,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:20:58,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:58,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571401016] [2024-11-27 23:20:58,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571401016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:58,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:58,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:20:58,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431167410] [2024-11-27 23:20:58,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:58,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:20:58,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:58,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:20:58,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:20:58,328 INFO L87 Difference]: Start difference. First operand 23768 states and 40654 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:21:05,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:05,700 INFO L93 Difference]: Finished difference Result 98454 states and 166011 transitions. [2024-11-27 23:21:05,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:21:05,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 688 [2024-11-27 23:21:05,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:06,068 INFO L225 Difference]: With dead ends: 98454 [2024-11-27 23:21:06,069 INFO L226 Difference]: Without dead ends: 78747 [2024-11-27 23:21:06,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:21:06,135 INFO L435 NwaCegarLoop]: 1125 mSDtfsCounter, 3459 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3459 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1218 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:06,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3459 Valid, 3577 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1218 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-27 23:21:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78747 states. [2024-11-27 23:21:10,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78747 to 33060. [2024-11-27 23:21:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33060 states, 27912 states have (on average 1.6613284608770422) internal successors, (46371), 27992 states have internal predecessors, (46371), 5050 states have call successors, (5050), 97 states have call predecessors, (5050), 97 states have return successors, (5050), 4970 states have call predecessors, (5050), 5050 states have call successors, (5050) [2024-11-27 23:21:10,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33060 states to 33060 states and 56471 transitions. [2024-11-27 23:21:10,879 INFO L78 Accepts]: Start accepts. Automaton has 33060 states and 56471 transitions. Word has length 688 [2024-11-27 23:21:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:10,880 INFO L471 AbstractCegarLoop]: Abstraction has 33060 states and 56471 transitions. [2024-11-27 23:21:10,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:21:10,880 INFO L276 IsEmpty]: Start isEmpty. Operand 33060 states and 56471 transitions. [2024-11-27 23:21:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-27 23:21:11,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:11,044 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:11,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:21:11,045 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:21:11,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:11,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1218192504, now seen corresponding path program 1 times [2024-11-27 23:21:11,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:11,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011022932] [2024-11-27 23:21:11,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:11,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:21:12,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:12,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011022932] [2024-11-27 23:21:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011022932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:12,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:12,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:21:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562054628] [2024-11-27 23:21:12,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:12,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:21:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:12,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:21:12,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:21:12,738 INFO L87 Difference]: Start difference. First operand 33060 states and 56471 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:21:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:16,434 INFO L93 Difference]: Finished difference Result 90730 states and 154174 transitions. [2024-11-27 23:21:16,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:21:16,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 688 [2024-11-27 23:21:16,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:16,650 INFO L225 Difference]: With dead ends: 90730 [2024-11-27 23:21:16,651 INFO L226 Difference]: Without dead ends: 63912 [2024-11-27 23:21:16,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:21:16,698 INFO L435 NwaCegarLoop]: 648 mSDtfsCounter, 664 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:16,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 2245 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:21:16,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63912 states. [2024-11-27 23:21:23,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63912 to 59876. [2024-11-27 23:21:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59876 states, 49688 states have (on average 1.6516865239091933) internal successors, (82069), 49848 states have internal predecessors, (82069), 9994 states have call successors, (9994), 193 states have call predecessors, (9994), 193 states have return successors, (9994), 9834 states have call predecessors, (9994), 9994 states have call successors, (9994) [2024-11-27 23:21:23,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59876 states to 59876 states and 102057 transitions. [2024-11-27 23:21:23,521 INFO L78 Accepts]: Start accepts. Automaton has 59876 states and 102057 transitions. Word has length 688 [2024-11-27 23:21:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:23,522 INFO L471 AbstractCegarLoop]: Abstraction has 59876 states and 102057 transitions. [2024-11-27 23:21:23,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:21:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 59876 states and 102057 transitions. [2024-11-27 23:21:23,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-27 23:21:23,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:23,541 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:23,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:21:23,542 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:21:23,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:23,543 INFO L85 PathProgramCache]: Analyzing trace with hash -61671174, now seen corresponding path program 1 times [2024-11-27 23:21:23,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:23,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418231178] [2024-11-27 23:21:23,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:23,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:26,448 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-27 23:21:26,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:26,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418231178] [2024-11-27 23:21:26,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418231178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:26,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:26,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:21:26,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286070068] [2024-11-27 23:21:26,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:26,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:21:26,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:26,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:21:26,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:21:26,452 INFO L87 Difference]: Start difference. First operand 59876 states and 102057 transitions. Second operand has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 11 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-27 23:21:43,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:43,296 INFO L93 Difference]: Finished difference Result 387252 states and 659923 transitions. [2024-11-27 23:21:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:21:43,296 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 11 states have internal predecessors, (161), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 688 [2024-11-27 23:21:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:44,255 INFO L225 Difference]: With dead ends: 387252 [2024-11-27 23:21:44,256 INFO L226 Difference]: Without dead ends: 327586 [2024-11-27 23:21:44,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:21:44,382 INFO L435 NwaCegarLoop]: 914 mSDtfsCounter, 4039 mSDsluCounter, 5302 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4039 SdHoareTripleChecker+Valid, 6216 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:44,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4039 Valid, 6216 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 23:21:44,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327586 states.