./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.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_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/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_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/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_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/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 59727828023891546cc5a25cf7f297a1b2c37fd03b88eda6114da55f7e3ce778 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:33:06,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:33:06,918 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:33:06,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:33:06,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:33:06,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:33:06,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:33:06,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:33:06,962 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:33:06,962 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:33:06,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:33:06,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:33:06,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:33:06,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:33:06,964 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:33:06,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:33:06,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:33:06,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:33:06,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:33:06,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:33:06,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:33:06,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:33:06,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:33:06,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:33:06,966 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:33:06,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:33:06,966 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:33:06,966 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:33:06,966 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:33:06,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:33:06,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:33:06,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:33:06,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:33:06,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:33:06,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:33:06,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:33:06,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:33:06,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:33:06,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:33:06,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:33:06,968 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:33:06,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:33:06,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:33:06,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:33:06,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:33:06,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:33:06,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:33:06,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:33:06,970 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_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/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 -> 59727828023891546cc5a25cf7f297a1b2c37fd03b88eda6114da55f7e3ce778 [2024-11-28 04:33:07,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:33:07,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:33:07,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:33:07,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:33:07,340 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:33:07,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2024-11-28 04:33:10,936 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/data/f2d005af4/636724a1224443228b7d8f8c0fe2492e/FLAGd47c87e76 [2024-11-28 04:33:11,217 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:33:11,218 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2024-11-28 04:33:11,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/data/f2d005af4/636724a1224443228b7d8f8c0fe2492e/FLAGd47c87e76 [2024-11-28 04:33:11,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/data/f2d005af4/636724a1224443228b7d8f8c0fe2492e [2024-11-28 04:33:11,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:33:11,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:33:11,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:33:11,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:33:11,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:33:11,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fc6545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11, skipping insertion in model container [2024-11-28 04:33:11,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,286 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:33:11,458 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_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i[919,932] [2024-11-28 04:33:11,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:33:11,626 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:33:11,642 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_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i[919,932] [2024-11-28 04:33:11,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:33:11,759 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:33:11,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11 WrapperNode [2024-11-28 04:33:11,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:33:11,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:33:11,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:33:11,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:33:11,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,847 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 235 [2024-11-28 04:33:11,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:33:11,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:33:11,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:33:11,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:33:11,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,863 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,895 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]. [2024-11-28 04:33:11,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,919 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:33:11,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:33:11,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:33:11,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:33:11,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (1/1) ... [2024-11-28 04:33:11,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:33:11,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:12,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:12,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:33:12,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:33:12,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:33:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:33:12,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:33:12,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:33:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:33:12,169 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:33:12,172 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:33:12,919 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-28 04:33:12,919 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:33:12,933 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:33:12,934 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:33:12,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:12 BoogieIcfgContainer [2024-11-28 04:33:12,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:33:12,937 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:33:12,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:33:12,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:33:12,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:33:11" (1/3) ... [2024-11-28 04:33:12,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6844e3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:33:12, skipping insertion in model container [2024-11-28 04:33:12,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:11" (2/3) ... [2024-11-28 04:33:12,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6844e3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:33:12, skipping insertion in model container [2024-11-28 04:33:12,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:12" (3/3) ... [2024-11-28 04:33:12,946 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2024-11-28 04:33:12,965 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:33:12,969 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i that has 2 procedures, 98 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:33:13,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:33:13,074 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;@b7d1179, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:33:13,075 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:33:13,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 69 states have internal predecessors, (101), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:33:13,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:33:13,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:13,105 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:13,107 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:13,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2015951129, now seen corresponding path program 1 times [2024-11-28 04:33:13,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:13,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367689141] [2024-11-28 04:33:13,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:13,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-28 04:33:13,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:13,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367689141] [2024-11-28 04:33:13,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367689141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:13,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437150892] [2024-11-28 04:33:13,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:13,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:13,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:13,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:13,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:33:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:13,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:33:13,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-28 04:33:13,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:33:13,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437150892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:13,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:13,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:33:13,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347185066] [2024-11-28 04:33:13,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:13,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:33:13,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:14,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:33:14,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:33:14,010 INFO L87 Difference]: Start difference. First operand has 98 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 69 states have internal predecessors, (101), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:33:14,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:14,065 INFO L93 Difference]: Finished difference Result 189 states and 331 transitions. [2024-11-28 04:33:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:33:14,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-28 04:33:14,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:14,079 INFO L225 Difference]: With dead ends: 189 [2024-11-28 04:33:14,080 INFO L226 Difference]: Without dead ends: 94 [2024-11-28 04:33:14,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:33:14,092 INFO L435 NwaCegarLoop]: 147 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, 147 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 [2024-11-28 04:33:14,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:33:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-28 04:33:14,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-28 04:33:14,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:33:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2024-11-28 04:33:14,172 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 175 [2024-11-28 04:33:14,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:14,172 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2024-11-28 04:33:14,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:33:14,173 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2024-11-28 04:33:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:33:14,179 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:14,180 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:14,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:14,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:33:14,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:14,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:14,383 INFO L85 PathProgramCache]: Analyzing trace with hash 476781609, now seen corresponding path program 1 times [2024-11-28 04:33:14,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:14,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219048119] [2024-11-28 04:33:14,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:14,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:33:14,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:14,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219048119] [2024-11-28 04:33:14,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219048119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:14,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:33:14,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:33:14,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202838966] [2024-11-28 04:33:14,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:14,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:33:14,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:14,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:33:14,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:33:14,999 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:15,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:15,062 INFO L93 Difference]: Finished difference Result 186 states and 293 transitions. [2024-11-28 04:33:15,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:33:15,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-28 04:33:15,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:15,065 INFO L225 Difference]: With dead ends: 186 [2024-11-28 04:33:15,069 INFO L226 Difference]: Without dead ends: 95 [2024-11-28 04:33:15,070 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 [2024-11-28 04:33:15,071 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:15,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:33:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-28 04:33:15,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-28 04:33:15,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:33:15,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 148 transitions. [2024-11-28 04:33:15,102 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 148 transitions. Word has length 175 [2024-11-28 04:33:15,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:15,108 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 148 transitions. [2024-11-28 04:33:15,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 148 transitions. [2024-11-28 04:33:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:33:15,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:15,120 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:15,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:33:15,121 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:15,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:15,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1517363097, now seen corresponding path program 1 times [2024-11-28 04:33:15,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:15,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561611893] [2024-11-28 04:33:15,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:15,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:33:15,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:15,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561611893] [2024-11-28 04:33:15,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561611893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:15,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:33:15,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:33:15,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700003123] [2024-11-28 04:33:15,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:15,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:33:15,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:15,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:33:15,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:33:15,762 INFO L87 Difference]: Start difference. First operand 95 states and 148 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:16,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:16,264 INFO L93 Difference]: Finished difference Result 280 states and 439 transitions. [2024-11-28 04:33:16,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:33:16,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-28 04:33:16,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:16,274 INFO L225 Difference]: With dead ends: 280 [2024-11-28 04:33:16,274 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 04:33:16,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:33:16,276 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 147 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:16,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 475 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:33:16,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 04:33:16,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 168. [2024-11-28 04:33:16,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 111 states have (on average 1.3963963963963963) internal successors, (155), 111 states have internal predecessors, (155), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:33:16,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 263 transitions. [2024-11-28 04:33:16,342 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 263 transitions. Word has length 175 [2024-11-28 04:33:16,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:16,343 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 263 transitions. [2024-11-28 04:33:16,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:16,343 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 263 transitions. [2024-11-28 04:33:16,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:33:16,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:16,353 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:16,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:33:16,353 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:16,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:16,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1766486949, now seen corresponding path program 1 times [2024-11-28 04:33:16,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:16,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348129875] [2024-11-28 04:33:16,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:16,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:33:16,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:16,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348129875] [2024-11-28 04:33:16,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348129875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:16,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:33:16,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:33:16,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642834512] [2024-11-28 04:33:16,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:16,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:33:16,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:16,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:33:16,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:33:16,836 INFO L87 Difference]: Start difference. First operand 168 states and 263 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:16,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:16,918 INFO L93 Difference]: Finished difference Result 378 states and 594 transitions. [2024-11-28 04:33:16,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:33:16,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-28 04:33:16,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:16,928 INFO L225 Difference]: With dead ends: 378 [2024-11-28 04:33:16,928 INFO L226 Difference]: Without dead ends: 260 [2024-11-28 04:33:16,929 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 [2024-11-28 04:33:16,930 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 100 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:16,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 306 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:33:16,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-28 04:33:16,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2024-11-28 04:33:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 173 states have (on average 1.4046242774566473) internal successors, (243), 173 states have internal predecessors, (243), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-28 04:33:17,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 405 transitions. [2024-11-28 04:33:17,003 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 405 transitions. Word has length 175 [2024-11-28 04:33:17,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:17,005 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 405 transitions. [2024-11-28 04:33:17,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:17,006 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 405 transitions. [2024-11-28 04:33:17,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:33:17,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:17,011 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:17,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:33:17,012 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:17,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:17,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1985341667, now seen corresponding path program 1 times [2024-11-28 04:33:17,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:17,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392643056] [2024-11-28 04:33:17,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:17,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:33:34,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:34,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392643056] [2024-11-28 04:33:34,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392643056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:34,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:33:34,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:33:34,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817789842] [2024-11-28 04:33:34,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:34,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:33:34,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:34,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:33:34,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:33:34,612 INFO L87 Difference]: Start difference. First operand 258 states and 405 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:39,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:39,413 INFO L93 Difference]: Finished difference Result 431 states and 662 transitions. [2024-11-28 04:33:39,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:33:39,415 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-28 04:33:39,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:39,422 INFO L225 Difference]: With dead ends: 431 [2024-11-28 04:33:39,422 INFO L226 Difference]: Without dead ends: 339 [2024-11-28 04:33:39,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=220, Invalid=650, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:33:39,426 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 413 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:39,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 875 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:33:39,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-28 04:33:39,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 274. [2024-11-28 04:33:39,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 189 states have (on average 1.402116402116402) internal successors, (265), 189 states have internal predecessors, (265), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-28 04:33:39,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 427 transitions. [2024-11-28 04:33:39,496 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 427 transitions. Word has length 175 [2024-11-28 04:33:39,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:39,499 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 427 transitions. [2024-11-28 04:33:39,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 427 transitions. [2024-11-28 04:33:39,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:33:39,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:39,503 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:39,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:33:39,503 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:39,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:39,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1608561051, now seen corresponding path program 1 times [2024-11-28 04:33:39,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:39,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230310529] [2024-11-28 04:33:39,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:39,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:33:39,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:39,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230310529] [2024-11-28 04:33:39,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230310529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:39,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:33:39,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:33:39,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808259345] [2024-11-28 04:33:39,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:39,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:33:39,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:39,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:33:39,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:33:39,623 INFO L87 Difference]: Start difference. First operand 274 states and 427 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:39,701 INFO L93 Difference]: Finished difference Result 548 states and 860 transitions. [2024-11-28 04:33:39,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:33:39,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-28 04:33:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:39,705 INFO L225 Difference]: With dead ends: 548 [2024-11-28 04:33:39,706 INFO L226 Difference]: Without dead ends: 366 [2024-11-28 04:33:39,707 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 [2024-11-28 04:33:39,707 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 139 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:39,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 293 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:33:39,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-28 04:33:39,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 364. [2024-11-28 04:33:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 251 states have (on average 1.3904382470119523) internal successors, (349), 251 states have internal predecessors, (349), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:33:39,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 565 transitions. [2024-11-28 04:33:39,764 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 565 transitions. Word has length 175 [2024-11-28 04:33:39,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:39,766 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 565 transitions. [2024-11-28 04:33:39,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 565 transitions. [2024-11-28 04:33:39,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 04:33:39,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:39,769 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:39,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:33:39,770 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:39,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:39,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1257394045, now seen corresponding path program 1 times [2024-11-28 04:33:39,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:39,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523523177] [2024-11-28 04:33:39,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:39,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:33:40,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:40,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523523177] [2024-11-28 04:33:40,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523523177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:40,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:33:40,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:33:40,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057093383] [2024-11-28 04:33:40,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:40,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:33:40,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:40,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:33:40,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:33:40,122 INFO L87 Difference]: Start difference. First operand 364 states and 565 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:40,192 INFO L93 Difference]: Finished difference Result 652 states and 1012 transitions. [2024-11-28 04:33:40,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:33:40,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-28 04:33:40,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:40,200 INFO L225 Difference]: With dead ends: 652 [2024-11-28 04:33:40,200 INFO L226 Difference]: Without dead ends: 377 [2024-11-28 04:33:40,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:33:40,202 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 6 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:40,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 274 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:33:40,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-28 04:33:40,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 364. [2024-11-28 04:33:40,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 251 states have (on average 1.3745019920318724) internal successors, (345), 251 states have internal predecessors, (345), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:33:40,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 561 transitions. [2024-11-28 04:33:40,258 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 561 transitions. Word has length 176 [2024-11-28 04:33:40,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:40,258 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 561 transitions. [2024-11-28 04:33:40,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:33:40,262 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 561 transitions. [2024-11-28 04:33:40,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 04:33:40,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:40,265 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:40,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:33:40,265 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:40,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1262565889, now seen corresponding path program 1 times [2024-11-28 04:33:40,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:40,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187139074] [2024-11-28 04:33:40,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:40,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:49,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:33:49,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:49,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187139074] [2024-11-28 04:33:49,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187139074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:49,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:33:49,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 04:33:49,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946181036] [2024-11-28 04:33:49,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:49,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:33:49,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:49,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:33:49,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:33:49,305 INFO L87 Difference]: Start difference. First operand 364 states and 561 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:33:57,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:57,391 INFO L93 Difference]: Finished difference Result 692 states and 1048 transitions. [2024-11-28 04:33:57,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:33:57,392 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176 [2024-11-28 04:33:57,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:57,396 INFO L225 Difference]: With dead ends: 692 [2024-11-28 04:33:57,396 INFO L226 Difference]: Without dead ends: 420 [2024-11-28 04:33:57,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:33:57,399 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 497 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:57,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1039 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 04:33:57,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-28 04:33:57,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 363. [2024-11-28 04:33:57,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 250 states have (on average 1.372) internal successors, (343), 250 states have internal predecessors, (343), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:33:57,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 559 transitions. [2024-11-28 04:33:57,449 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 559 transitions. Word has length 176 [2024-11-28 04:33:57,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:57,450 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 559 transitions. [2024-11-28 04:33:57,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:33:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 559 transitions. [2024-11-28 04:33:57,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 04:33:57,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:57,453 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:57,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:33:57,454 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:57,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1469551459, now seen corresponding path program 1 times [2024-11-28 04:33:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:57,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675581715] [2024-11-28 04:33:57,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:57,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:34:01,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:01,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675581715] [2024-11-28 04:34:01,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675581715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:01,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:01,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:34:01,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757553405] [2024-11-28 04:34:01,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:01,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:34:01,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:01,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:34:01,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:34:01,789 INFO L87 Difference]: Start difference. First operand 363 states and 559 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:34:03,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:03,159 INFO L93 Difference]: Finished difference Result 418 states and 621 transitions. [2024-11-28 04:34:03,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:34:03,159 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-28 04:34:03,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:03,163 INFO L225 Difference]: With dead ends: 418 [2024-11-28 04:34:03,163 INFO L226 Difference]: Without dead ends: 416 [2024-11-28 04:34:03,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:34:03,164 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 373 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:03,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 795 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:34:03,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-28 04:34:03,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 366. [2024-11-28 04:34:03,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 253 states have (on average 1.3715415019762847) internal successors, (347), 253 states have internal predecessors, (347), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:34:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 563 transitions. [2024-11-28 04:34:03,208 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 563 transitions. Word has length 176 [2024-11-28 04:34:03,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:03,209 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 563 transitions. [2024-11-28 04:34:03,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:34:03,209 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 563 transitions. [2024-11-28 04:34:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 04:34:03,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:03,211 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:03,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:34:03,212 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:03,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:03,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1706688612, now seen corresponding path program 1 times [2024-11-28 04:34:03,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:03,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783391869] [2024-11-28 04:34:03,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:03,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:12,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:34:12,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:12,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783391869] [2024-11-28 04:34:12,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783391869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:12,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:12,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:34:12,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705842195] [2024-11-28 04:34:12,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:12,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:34:12,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:12,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:34:12,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:34:12,825 INFO L87 Difference]: Start difference. First operand 366 states and 563 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:34:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:23,078 INFO L93 Difference]: Finished difference Result 436 states and 642 transitions. [2024-11-28 04:34:23,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:34:23,080 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-28 04:34:23,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:23,083 INFO L225 Difference]: With dead ends: 436 [2024-11-28 04:34:23,083 INFO L226 Difference]: Without dead ends: 434 [2024-11-28 04:34:23,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:34:23,085 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 372 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:23,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 750 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 04:34:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-28 04:34:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 376. [2024-11-28 04:34:23,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 263 states have (on average 1.3688212927756653) internal successors, (360), 263 states have internal predecessors, (360), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:34:23,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 576 transitions. [2024-11-28 04:34:23,122 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 576 transitions. Word has length 176 [2024-11-28 04:34:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:23,123 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 576 transitions. [2024-11-28 04:34:23,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:34:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 576 transitions. [2024-11-28 04:34:23,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 04:34:23,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:23,126 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:23,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:34:23,126 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:23,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1026630242, now seen corresponding path program 1 times [2024-11-28 04:34:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:23,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578718767] [2024-11-28 04:34:23,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:23,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:31,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:34:31,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:31,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578718767] [2024-11-28 04:34:31,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578718767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:31,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:31,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 04:34:31,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074899672] [2024-11-28 04:34:31,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:31,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:34:31,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:31,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:34:31,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:34:31,345 INFO L87 Difference]: Start difference. First operand 376 states and 576 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:34:42,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:42,918 INFO L93 Difference]: Finished difference Result 430 states and 636 transitions. [2024-11-28 04:34:42,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:34:42,920 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-28 04:34:42,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:42,924 INFO L225 Difference]: With dead ends: 430 [2024-11-28 04:34:42,924 INFO L226 Difference]: Without dead ends: 428 [2024-11-28 04:34:42,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:34:42,926 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 311 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:42,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 816 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:34:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-28 04:34:42,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 376. [2024-11-28 04:34:42,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 263 states have (on average 1.3688212927756653) internal successors, (360), 263 states have internal predecessors, (360), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:34:42,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 576 transitions. [2024-11-28 04:34:42,973 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 576 transitions. Word has length 176 [2024-11-28 04:34:42,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:42,974 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 576 transitions. [2024-11-28 04:34:42,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:34:42,974 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 576 transitions. [2024-11-28 04:34:42,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 04:34:42,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:42,980 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:42,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:34:42,981 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:42,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:42,981 INFO L85 PathProgramCache]: Analyzing trace with hash -431334969, now seen corresponding path program 1 times [2024-11-28 04:34:42,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:42,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628190328] [2024-11-28 04:34:42,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:42,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:34:49,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:49,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628190328] [2024-11-28 04:34:49,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628190328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:49,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:49,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 04:34:49,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502170821] [2024-11-28 04:34:49,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:49,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:34:49,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:49,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:34:49,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:34:49,124 INFO L87 Difference]: Start difference. First operand 376 states and 576 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 04:34:52,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:52,542 INFO L93 Difference]: Finished difference Result 423 states and 627 transitions. [2024-11-28 04:34:52,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:34:52,543 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 177 [2024-11-28 04:34:52,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:52,547 INFO L225 Difference]: With dead ends: 423 [2024-11-28 04:34:52,547 INFO L226 Difference]: Without dead ends: 421 [2024-11-28 04:34:52,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:34:52,549 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 568 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:52,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1049 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:34:52,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-28 04:34:52,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 373. [2024-11-28 04:34:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 260 states have (on average 1.3692307692307693) internal successors, (356), 260 states have internal predecessors, (356), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:34:52,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 572 transitions. [2024-11-28 04:34:52,594 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 572 transitions. Word has length 177 [2024-11-28 04:34:52,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:52,594 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 572 transitions. [2024-11-28 04:34:52,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 04:34:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 572 transitions. [2024-11-28 04:34:52,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 04:34:52,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:52,597 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:52,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:34:52,597 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:52,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:52,598 INFO L85 PathProgramCache]: Analyzing trace with hash 248612454, now seen corresponding path program 1 times [2024-11-28 04:34:52,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:52,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715911250] [2024-11-28 04:34:52,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:52,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:34:57,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:57,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715911250] [2024-11-28 04:34:57,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715911250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:57,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:57,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 04:34:57,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180035527] [2024-11-28 04:34:57,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:57,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:34:57,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:57,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:34:57,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:34:57,274 INFO L87 Difference]: Start difference. First operand 373 states and 572 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:35:03,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:03,834 INFO L93 Difference]: Finished difference Result 438 states and 644 transitions. [2024-11-28 04:35:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 04:35:03,835 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-28 04:35:03,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:03,840 INFO L225 Difference]: With dead ends: 438 [2024-11-28 04:35:03,840 INFO L226 Difference]: Without dead ends: 436 [2024-11-28 04:35:03,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=387, Invalid=1019, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:35:03,843 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 351 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:03,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 994 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 04:35:03,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-28 04:35:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 376. [2024-11-28 04:35:03,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 263 states have (on average 1.3688212927756653) internal successors, (360), 263 states have internal predecessors, (360), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:35:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 576 transitions. [2024-11-28 04:35:03,889 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 576 transitions. Word has length 177 [2024-11-28 04:35:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:03,890 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 576 transitions. [2024-11-28 04:35:03,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:35:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 576 transitions. [2024-11-28 04:35:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 04:35:03,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:03,895 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:03,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:35:03,896 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:03,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:03,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1312390452, now seen corresponding path program 1 times [2024-11-28 04:35:03,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:03,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586780211] [2024-11-28 04:35:03,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:03,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:35:11,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:11,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586780211] [2024-11-28 04:35:11,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586780211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:11,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:11,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 04:35:11,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316070040] [2024-11-28 04:35:11,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:11,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:35:11,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:11,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:35:11,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:35:11,331 INFO L87 Difference]: Start difference. First operand 376 states and 576 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:35:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:14,938 INFO L93 Difference]: Finished difference Result 434 states and 640 transitions. [2024-11-28 04:35:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:35:14,939 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-28 04:35:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:14,942 INFO L225 Difference]: With dead ends: 434 [2024-11-28 04:35:14,942 INFO L226 Difference]: Without dead ends: 432 [2024-11-28 04:35:14,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=314, Invalid=876, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:35:14,944 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 362 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:14,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 898 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:35:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-28 04:35:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 379. [2024-11-28 04:35:14,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 266 states have (on average 1.368421052631579) internal successors, (364), 266 states have internal predecessors, (364), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:35:14,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 580 transitions. [2024-11-28 04:35:14,982 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 580 transitions. Word has length 177 [2024-11-28 04:35:14,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:14,982 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 580 transitions. [2024-11-28 04:35:14,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:35:14,982 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 580 transitions. [2024-11-28 04:35:14,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 04:35:14,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:14,984 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:14,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:35:14,984 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:14,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:14,985 INFO L85 PathProgramCache]: Analyzing trace with hash -144414556, now seen corresponding path program 1 times [2024-11-28 04:35:14,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:14,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69071721] [2024-11-28 04:35:14,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:14,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:35:29,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:29,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69071721] [2024-11-28 04:35:29,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69071721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:29,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:29,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 04:35:29,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39419919] [2024-11-28 04:35:29,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:29,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:35:29,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:29,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:35:29,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:35:29,087 INFO L87 Difference]: Start difference. First operand 379 states and 580 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:35:43,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:43,136 INFO L93 Difference]: Finished difference Result 429 states and 635 transitions. [2024-11-28 04:35:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:35:43,138 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 177 [2024-11-28 04:35:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:43,141 INFO L225 Difference]: With dead ends: 429 [2024-11-28 04:35:43,141 INFO L226 Difference]: Without dead ends: 427 [2024-11-28 04:35:43,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:35:43,143 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 341 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:43,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 987 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-28 04:35:43,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-28 04:35:43,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 379. [2024-11-28 04:35:43,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 266 states have (on average 1.368421052631579) internal successors, (364), 266 states have internal predecessors, (364), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:35:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 580 transitions. [2024-11-28 04:35:43,183 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 580 transitions. Word has length 177 [2024-11-28 04:35:43,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:43,184 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 580 transitions. [2024-11-28 04:35:43,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:35:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 580 transitions. [2024-11-28 04:35:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 04:35:43,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:43,186 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:43,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:35:43,187 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:43,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:43,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1705417462, now seen corresponding path program 1 times [2024-11-28 04:35:43,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:43,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522842241] [2024-11-28 04:35:43,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:43,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:53,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:35:53,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:53,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522842241] [2024-11-28 04:35:53,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522842241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:53,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:53,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 04:35:53,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970574391] [2024-11-28 04:35:53,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:53,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:35:53,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:53,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:35:53,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:35:53,987 INFO L87 Difference]: Start difference. First operand 379 states and 580 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:36:03,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:03,731 INFO L93 Difference]: Finished difference Result 424 states and 629 transitions. [2024-11-28 04:36:03,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:36:03,732 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-28 04:36:03,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:03,735 INFO L225 Difference]: With dead ends: 424 [2024-11-28 04:36:03,735 INFO L226 Difference]: Without dead ends: 422 [2024-11-28 04:36:03,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=315, Invalid=807, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:36:03,736 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 271 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:03,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 894 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:36:03,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-28 04:36:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 377. [2024-11-28 04:36:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 264 states have (on average 1.3674242424242424) internal successors, (361), 264 states have internal predecessors, (361), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:36:03,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 577 transitions. [2024-11-28 04:36:03,772 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 577 transitions. Word has length 177 [2024-11-28 04:36:03,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:03,772 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 577 transitions. [2024-11-28 04:36:03,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:36:03,773 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 577 transitions. [2024-11-28 04:36:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 04:36:03,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:03,774 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:03,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:36:03,774 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:03,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:03,775 INFO L85 PathProgramCache]: Analyzing trace with hash 150778903, now seen corresponding path program 1 times [2024-11-28 04:36:03,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:03,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621785672] [2024-11-28 04:36:03,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:03,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:36:18,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:18,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621785672] [2024-11-28 04:36:18,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621785672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:18,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:18,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 04:36:18,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72637667] [2024-11-28 04:36:18,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:18,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:36:18,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:18,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:36:18,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:36:18,327 INFO L87 Difference]: Start difference. First operand 377 states and 577 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:36:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:30,277 INFO L93 Difference]: Finished difference Result 434 states and 640 transitions. [2024-11-28 04:36:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:36:30,278 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-28 04:36:30,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:30,280 INFO L225 Difference]: With dead ends: 434 [2024-11-28 04:36:30,280 INFO L226 Difference]: Without dead ends: 432 [2024-11-28 04:36:30,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=344, Invalid=916, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:36:30,281 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 263 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:30,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 976 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 04:36:30,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-28 04:36:30,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 383. [2024-11-28 04:36:30,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 270 states have (on average 1.3666666666666667) internal successors, (369), 270 states have internal predecessors, (369), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:36:30,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 585 transitions. [2024-11-28 04:36:30,318 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 585 transitions. Word has length 177 [2024-11-28 04:36:30,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:30,318 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 585 transitions. [2024-11-28 04:36:30,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:36:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 585 transitions. [2024-11-28 04:36:30,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 04:36:30,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:30,320 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:30,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:36:30,321 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:30,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:30,321 INFO L85 PathProgramCache]: Analyzing trace with hash 830837273, now seen corresponding path program 1 times [2024-11-28 04:36:30,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:30,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374632342] [2024-11-28 04:36:30,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:30,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:36:49,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:49,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374632342] [2024-11-28 04:36:49,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374632342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:49,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:49,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 04:36:49,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78907343] [2024-11-28 04:36:49,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:49,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:36:49,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:49,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:36:49,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:36:49,053 INFO L87 Difference]: Start difference. First operand 383 states and 585 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:37:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:04,462 INFO L93 Difference]: Finished difference Result 428 states and 634 transitions. [2024-11-28 04:37:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:37:04,463 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-28 04:37:04,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:04,465 INFO L225 Difference]: With dead ends: 428 [2024-11-28 04:37:04,465 INFO L226 Difference]: Without dead ends: 426 [2024-11-28 04:37:04,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=341, Invalid=849, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:37:04,467 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 266 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:04,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 878 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:37:04,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-28 04:37:04,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 383. [2024-11-28 04:37:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 270 states have (on average 1.3666666666666667) internal successors, (369), 270 states have internal predecessors, (369), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:37:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 585 transitions. [2024-11-28 04:37:04,502 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 585 transitions. Word has length 177 [2024-11-28 04:37:04,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:04,503 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 585 transitions. [2024-11-28 04:37:04,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:37:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 585 transitions. [2024-11-28 04:37:04,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:37:04,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:04,504 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:04,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:37:04,505 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:37:04,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:04,505 INFO L85 PathProgramCache]: Analyzing trace with hash -827599550, now seen corresponding path program 1 times [2024-11-28 04:37:04,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:04,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629133627] [2024-11-28 04:37:04,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:04,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:37:17,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:17,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629133627] [2024-11-28 04:37:17,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629133627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:17,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:17,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 04:37:17,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087865778] [2024-11-28 04:37:17,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:17,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:37:17,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:17,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:37:17,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:37:17,250 INFO L87 Difference]: Start difference. First operand 383 states and 585 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:37:32,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:32,272 INFO L93 Difference]: Finished difference Result 435 states and 642 transitions. [2024-11-28 04:37:32,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:37:32,273 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2024-11-28 04:37:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:32,276 INFO L225 Difference]: With dead ends: 435 [2024-11-28 04:37:32,277 INFO L226 Difference]: Without dead ends: 433 [2024-11-28 04:37:32,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=330, Invalid=930, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:37:32,278 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 380 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:32,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1096 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-28 04:37:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-28 04:37:32,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 386. [2024-11-28 04:37:32,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 273 states have (on average 1.3663003663003663) internal successors, (373), 273 states have internal predecessors, (373), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:37:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2024-11-28 04:37:32,334 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 178 [2024-11-28 04:37:32,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:32,336 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2024-11-28 04:37:32,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:37:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2024-11-28 04:37:32,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:37:32,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:32,338 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:32,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:37:32,339 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:37:32,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:32,339 INFO L85 PathProgramCache]: Analyzing trace with hash -126534972, now seen corresponding path program 1 times [2024-11-28 04:37:32,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:32,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866904763] [2024-11-28 04:37:32,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:32,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:47,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:37:47,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:47,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866904763] [2024-11-28 04:37:47,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866904763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:47,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:47,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 04:37:47,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823068233] [2024-11-28 04:37:47,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:47,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:37:47,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:47,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:37:47,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:37:47,084 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:38:08,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:08,487 INFO L93 Difference]: Finished difference Result 425 states and 631 transitions. [2024-11-28 04:38:08,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:38:08,488 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2024-11-28 04:38:08,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:08,490 INFO L225 Difference]: With dead ends: 425 [2024-11-28 04:38:08,490 INFO L226 Difference]: Without dead ends: 423 [2024-11-28 04:38:08,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=329, Invalid=931, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:38:08,491 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 226 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:08,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1274 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 04:38:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-28 04:38:08,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 383. [2024-11-28 04:38:08,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 270 states have (on average 1.3666666666666667) internal successors, (369), 270 states have internal predecessors, (369), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:38:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 585 transitions. [2024-11-28 04:38:08,525 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 585 transitions. Word has length 178 [2024-11-28 04:38:08,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:08,525 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 585 transitions. [2024-11-28 04:38:08,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:38:08,526 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 585 transitions. [2024-11-28 04:38:08,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:38:08,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:08,527 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:08,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:38:08,528 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:08,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:08,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1995530571, now seen corresponding path program 1 times [2024-11-28 04:38:08,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:08,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721674198] [2024-11-28 04:38:08,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:08,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:38:25,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:25,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721674198] [2024-11-28 04:38:25,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721674198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:25,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:25,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 04:38:25,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292348442] [2024-11-28 04:38:25,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:25,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:38:25,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:25,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:38:25,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:38:25,398 INFO L87 Difference]: Start difference. First operand 383 states and 585 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:38:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:52,934 INFO L93 Difference]: Finished difference Result 436 states and 642 transitions. [2024-11-28 04:38:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 04:38:52,934 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2024-11-28 04:38:52,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:52,937 INFO L225 Difference]: With dead ends: 436 [2024-11-28 04:38:52,937 INFO L226 Difference]: Without dead ends: 434 [2024-11-28 04:38:52,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=465, Invalid=1257, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 04:38:52,938 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 402 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:52,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 937 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-28 04:38:52,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-28 04:38:52,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 386. [2024-11-28 04:38:52,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 273 states have (on average 1.3663003663003663) internal successors, (373), 273 states have internal predecessors, (373), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:38:52,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2024-11-28 04:38:52,973 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 178 [2024-11-28 04:38:52,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:52,974 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2024-11-28 04:38:52,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:38:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2024-11-28 04:38:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:38:52,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:52,976 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:52,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:38:52,977 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:52,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:52,977 INFO L85 PathProgramCache]: Analyzing trace with hash 434527665, now seen corresponding path program 1 times [2024-11-28 04:38:52,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:52,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665013590] [2024-11-28 04:38:52,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:52,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:39:10,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:10,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665013590] [2024-11-28 04:39:10,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665013590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:10,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:10,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 04:39:10,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906708868] [2024-11-28 04:39:10,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:10,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:39:10,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:10,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:39:10,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:39:10,107 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:39:26,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:26,585 INFO L93 Difference]: Finished difference Result 432 states and 638 transitions. [2024-11-28 04:39:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:39:26,586 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-11-28 04:39:26,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:26,589 INFO L225 Difference]: With dead ends: 432 [2024-11-28 04:39:26,590 INFO L226 Difference]: Without dead ends: 430 [2024-11-28 04:39:26,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=381, Invalid=1025, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:39:26,593 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 314 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:26,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 932 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 04:39:26,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-28 04:39:26,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 386. [2024-11-28 04:39:26,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 273 states have (on average 1.3663003663003663) internal successors, (373), 273 states have internal predecessors, (373), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:39:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2024-11-28 04:39:26,632 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 178 [2024-11-28 04:39:26,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:26,633 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2024-11-28 04:39:26,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:39:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2024-11-28 04:39:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:39:26,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:26,635 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:26,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:39:26,635 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:26,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:26,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1602503561, now seen corresponding path program 1 times [2024-11-28 04:39:26,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:26,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805213945] [2024-11-28 04:39:26,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:26,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:42,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:39:42,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:42,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805213945] [2024-11-28 04:39:42,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805213945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:42,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:42,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 04:39:42,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511475568] [2024-11-28 04:39:42,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:42,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:39:42,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:42,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:39:42,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:39:42,220 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:39:56,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:56,106 INFO L93 Difference]: Finished difference Result 427 states and 633 transitions. [2024-11-28 04:39:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:39:56,107 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2024-11-28 04:39:56,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:56,108 INFO L225 Difference]: With dead ends: 427 [2024-11-28 04:39:56,108 INFO L226 Difference]: Without dead ends: 425 [2024-11-28 04:39:56,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=370, Invalid=1036, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:39:56,109 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 229 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:56,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1134 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 04:39:56,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-28 04:39:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 386. [2024-11-28 04:39:56,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 273 states have (on average 1.3663003663003663) internal successors, (373), 273 states have internal predecessors, (373), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:39:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2024-11-28 04:39:56,143 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 178 [2024-11-28 04:39:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:56,144 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2024-11-28 04:39:56,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:39:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2024-11-28 04:39:56,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:39:56,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:56,146 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:56,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:39:56,146 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:56,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:56,147 INFO L85 PathProgramCache]: Analyzing trace with hash 41500655, now seen corresponding path program 1 times [2024-11-28 04:39:56,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:56,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158302955] [2024-11-28 04:39:56,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:56,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:40:19,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:19,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158302955] [2024-11-28 04:40:19,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158302955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:19,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:19,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 04:40:19,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199029390] [2024-11-28 04:40:19,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:19,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:40:19,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:19,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:40:19,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:40:19,800 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 04:40:39,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:39,457 INFO L93 Difference]: Finished difference Result 422 states and 627 transitions. [2024-11-28 04:40:39,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:40:39,458 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 178 [2024-11-28 04:40:39,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:39,459 INFO L225 Difference]: With dead ends: 422 [2024-11-28 04:40:39,459 INFO L226 Difference]: Without dead ends: 420 [2024-11-28 04:40:39,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=389, Invalid=1093, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:40:39,461 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 216 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:39,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1246 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-28 04:40:39,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-28 04:40:39,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 384. [2024-11-28 04:40:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 271 states have (on average 1.3653136531365313) internal successors, (370), 271 states have internal predecessors, (370), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:40:39,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 586 transitions. [2024-11-28 04:40:39,498 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 586 transitions. Word has length 178 [2024-11-28 04:40:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:39,499 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 586 transitions. [2024-11-28 04:40:39,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 04:40:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 586 transitions. [2024-11-28 04:40:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-28 04:40:39,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:39,501 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:39,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:40:39,501 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:39,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:39,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1787254525, now seen corresponding path program 1 times [2024-11-28 04:40:39,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:39,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30987296] [2024-11-28 04:40:39,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:39,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:41:00,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:00,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30987296] [2024-11-28 04:41:00,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30987296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:00,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:00,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 04:41:00,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43951763] [2024-11-28 04:41:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:00,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:41:00,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:00,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:41:00,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:41:00,854 INFO L87 Difference]: Start difference. First operand 384 states and 586 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:41:35,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:35,003 INFO L93 Difference]: Finished difference Result 433 states and 639 transitions. [2024-11-28 04:41:35,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 04:41:35,004 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 179 [2024-11-28 04:41:35,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:35,006 INFO L225 Difference]: With dead ends: 433 [2024-11-28 04:41:35,006 INFO L226 Difference]: Without dead ends: 431 [2024-11-28 04:41:35,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 36.0s TimeCoverageRelationStatistics Valid=525, Invalid=1367, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 04:41:35,007 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 265 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:35,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 950 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-28 04:41:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-28 04:41:35,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 384. [2024-11-28 04:41:35,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 271 states have (on average 1.3653136531365313) internal successors, (370), 271 states have internal predecessors, (370), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 04:41:35,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 586 transitions. [2024-11-28 04:41:35,045 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 586 transitions. Word has length 179 [2024-11-28 04:41:35,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:35,045 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 586 transitions. [2024-11-28 04:41:35,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 04:41:35,045 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 586 transitions. [2024-11-28 04:41:35,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-28 04:41:35,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:35,047 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:35,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:41:35,047 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:41:35,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:35,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1806648193, now seen corresponding path program 1 times [2024-11-28 04:41:35,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:35,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005643] [2024-11-28 04:41:35,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:35,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:41:53,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:53,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005643] [2024-11-28 04:41:53,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:53,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:53,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 04:41:53,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041902065] [2024-11-28 04:41:53,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:53,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:41:53,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:53,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:41:53,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:41:53,967 INFO L87 Difference]: Start difference. First operand 384 states and 586 transitions. Second operand has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:42:31,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:31,393 INFO L93 Difference]: Finished difference Result 609 states and 890 transitions. [2024-11-28 04:42:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 04:42:31,394 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 179 [2024-11-28 04:42:31,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:31,397 INFO L225 Difference]: With dead ends: 609 [2024-11-28 04:42:31,397 INFO L226 Difference]: Without dead ends: 607 [2024-11-28 04:42:31,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 34.5s TimeCoverageRelationStatistics Valid=518, Invalid=1552, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:42:31,398 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 456 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:31,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 2142 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-28 04:42:31,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-28 04:42:31,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 474. [2024-11-28 04:42:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 333 states have (on average 1.3633633633633633) internal successors, (454), 333 states have internal predecessors, (454), 135 states have call successors, (135), 5 states have call predecessors, (135), 5 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-28 04:42:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 724 transitions. [2024-11-28 04:42:31,449 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 724 transitions. Word has length 179 [2024-11-28 04:42:31,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:31,449 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 724 transitions. [2024-11-28 04:42:31,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:42:31,450 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 724 transitions. [2024-11-28 04:42:31,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-28 04:42:31,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:31,453 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:31,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 04:42:31,453 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:31,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:31,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1926652726, now seen corresponding path program 1 times [2024-11-28 04:42:31,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:31,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112214876] [2024-11-28 04:42:31,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:31,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:46,047 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 5 proven. 58 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 04:42:46,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:46,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112214876] [2024-11-28 04:42:46,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112214876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:46,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573720291] [2024-11-28 04:42:46,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:46,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:46,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:46,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:46,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:42:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:46,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:42:46,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:46,544 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 388 proven. 3 refuted. 0 times theorem prover too weak. 5396 trivial. 0 not checked. [2024-11-28 04:42:46,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:46,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573720291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:46,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:42:46,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5] total 20 [2024-11-28 04:42:46,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476124370] [2024-11-28 04:42:46,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:46,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:42:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:46,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:42:46,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:42:46,875 INFO L87 Difference]: Start difference. First operand 474 states and 724 transitions. Second operand has 20 states, 20 states have (on average 7.15) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2024-11-28 04:43:03,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:03,749 INFO L93 Difference]: Finished difference Result 1380 states and 2042 transitions. [2024-11-28 04:43:03,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 04:43:03,750 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.15) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) Word has length 347 [2024-11-28 04:43:03,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:03,755 INFO L225 Difference]: With dead ends: 1380 [2024-11-28 04:43:03,755 INFO L226 Difference]: Without dead ends: 974 [2024-11-28 04:43:03,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=355, Invalid=1807, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:43:03,758 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 754 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:03,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1716 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-28 04:43:03,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-11-28 04:43:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 797. [2024-11-28 04:43:03,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 564 states have (on average 1.3457446808510638) internal successors, (759), 564 states have internal predecessors, (759), 216 states have call successors, (216), 16 states have call predecessors, (216), 16 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2024-11-28 04:43:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1191 transitions. [2024-11-28 04:43:03,879 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1191 transitions. Word has length 347 [2024-11-28 04:43:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:03,879 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1191 transitions. [2024-11-28 04:43:03,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.15) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2024-11-28 04:43:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1191 transitions. [2024-11-28 04:43:03,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-28 04:43:03,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:03,883 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:03,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:43:04,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:43:04,084 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:43:04,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:04,085 INFO L85 PathProgramCache]: Analyzing trace with hash 705526142, now seen corresponding path program 1 times [2024-11-28 04:43:04,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:04,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825157558] [2024-11-28 04:43:04,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:04,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 04:43:13,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:13,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825157558] [2024-11-28 04:43:13,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825157558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:43:13,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405781274] [2024-11-28 04:43:13,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:13,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:43:13,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:43:13,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:43:13,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b39e5f-3506-4bd7-bac0-94a275f5e6b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:43:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:14,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-28 04:43:14,362 INFO L279 TraceCheckSpWp]: Computing forward predicates...