./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 760c1d743f5a1ad25ea52dedd60162abae8ccc16a1aae8053ec51960a678eda5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:41:26,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:41:26,785 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:41:26,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:41:26,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:41:26,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:41:26,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:41:26,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:41:26,839 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:41:26,839 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:41:26,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:41:26,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:41:26,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:41:26,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:41:26,840 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:41:26,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:41:26,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:41:26,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:41:26,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:41:26,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:41:26,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:41:26,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:41:26,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:41:26,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:41:26,844 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:41:26,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:41:26,845 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:41:26,845 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:41:26,845 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:41:26,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:41:26,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:41:26,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:41:26,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:41:26,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:41:26,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:41:26,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:41:26,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:41:26,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:41:26,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:41:26,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:41:26,847 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:41:26,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:41:26,848 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:41:26,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:41:26,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:41:26,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:41:26,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:41:26,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:41:26,848 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_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 760c1d743f5a1ad25ea52dedd60162abae8ccc16a1aae8053ec51960a678eda5 [2024-11-23 22:41:27,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:41:27,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:41:27,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:41:27,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:41:27,247 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:41:27,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i [2024-11-23 22:41:30,619 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/data/63e3141c5/80e60dbb8c484d50bf444dee27469c8a/FLAGc41142c30 [2024-11-23 22:41:31,053 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:41:31,054 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i [2024-11-23 22:41:31,064 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/data/63e3141c5/80e60dbb8c484d50bf444dee27469c8a/FLAGc41142c30 [2024-11-23 22:41:31,081 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/data/63e3141c5/80e60dbb8c484d50bf444dee27469c8a [2024-11-23 22:41:31,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:41:31,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:41:31,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:41:31,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:41:31,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:41:31,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1971390e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31, skipping insertion in model container [2024-11-23 22:41:31,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,135 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:41:31,334 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_a1208633-d751-4705-944b-a9243a1e988a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i[917,930] [2024-11-23 22:41:31,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:41:31,461 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:41:31,479 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_a1208633-d751-4705-944b-a9243a1e988a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i[917,930] [2024-11-23 22:41:31,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:41:31,587 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:41:31,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31 WrapperNode [2024-11-23 22:41:31,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:41:31,591 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:41:31,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:41:31,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:41:31,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,702 INFO L138 Inliner]: procedures = 30, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 501 [2024-11-23 22:41:31,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:41:31,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:41:31,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:41:31,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:41:31,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,732 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,746 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-23 22:41:31,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,777 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:41:31,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:41:31,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:41:31,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:41:31,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (1/1) ... [2024-11-23 22:41:31,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:41:31,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:41:31,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:41:31,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:41:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:41:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-23 22:41:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-23 22:41:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-23 22:41:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 22:41:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-23 22:41:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 22:41:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:41:31,880 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:41:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 22:41:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:41:31,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:41:32,081 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:41:32,085 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:41:33,229 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-23 22:41:33,229 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:41:33,245 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:41:33,245 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:41:33,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:33 BoogieIcfgContainer [2024-11-23 22:41:33,246 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:41:33,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:41:33,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:41:33,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:41:33,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:41:31" (1/3) ... [2024-11-23 22:41:33,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b2990f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:41:33, skipping insertion in model container [2024-11-23 22:41:33,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:31" (2/3) ... [2024-11-23 22:41:33,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b2990f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:41:33, skipping insertion in model container [2024-11-23 22:41:33,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:33" (3/3) ... [2024-11-23 22:41:33,259 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-53.i [2024-11-23 22:41:33,279 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:41:33,281 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-53.i that has 2 procedures, 112 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:41:33,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:41:33,377 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;@26c93473, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:41:33,378 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:41:33,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:41:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 22:41:33,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:41:33,398 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:41:33,398 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:41:33,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:41:33,404 INFO L85 PathProgramCache]: Analyzing trace with hash 528541446, now seen corresponding path program 1 times [2024-11-23 22:41:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:41:33,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162219665] [2024-11-23 22:41:33,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:41:33,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:41:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:41:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-23 22:41:34,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:41:34,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162219665] [2024-11-23 22:41:34,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162219665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:41:34,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169673333] [2024-11-23 22:41:34,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:41:34,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:41:34,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:41:34,103 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:41:34,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:41:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:41:34,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:41:34,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:41:34,608 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-23 22:41:34,609 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:41:34,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169673333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:41:34,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:41:34,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 22:41:34,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706948094] [2024-11-23 22:41:34,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:41:34,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:41:34,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:41:34,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:41:34,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:41:34,654 INFO L87 Difference]: Start difference. First operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:41:34,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:41:34,691 INFO L93 Difference]: Finished difference Result 217 states and 340 transitions. [2024-11-23 22:41:34,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:41:34,693 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-23 22:41:34,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:41:34,703 INFO L225 Difference]: With dead ends: 217 [2024-11-23 22:41:34,703 INFO L226 Difference]: Without dead ends: 108 [2024-11-23 22:41:34,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:41:34,710 INFO L435 NwaCegarLoop]: 155 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, 155 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 [2024-11-23 22:41:34,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:41:34,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-23 22:41:34,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-23 22:41:34,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 88 states have internal predecessors, (119), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:41:34,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2024-11-23 22:41:34,762 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 140 [2024-11-23 22:41:34,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:41:34,762 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2024-11-23 22:41:34,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:41:34,763 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2024-11-23 22:41:34,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 22:41:34,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:41:34,770 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:41:34,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:41:34,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 22:41:34,971 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:41:34,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:41:34,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1839681894, now seen corresponding path program 1 times [2024-11-23 22:41:34,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:41:34,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054890567] [2024-11-23 22:41:34,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:41:34,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:41:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:41:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:41:36,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:41:36,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054890567] [2024-11-23 22:41:36,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054890567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:41:36,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:41:36,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:41:36,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710229250] [2024-11-23 22:41:36,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:41:36,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:41:36,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:41:36,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:41:36,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:41:36,273 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:41:36,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:41:36,330 INFO L93 Difference]: Finished difference Result 213 states and 307 transitions. [2024-11-23 22:41:36,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:41:36,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-11-23 22:41:36,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:41:36,333 INFO L225 Difference]: With dead ends: 213 [2024-11-23 22:41:36,333 INFO L226 Difference]: Without dead ends: 108 [2024-11-23 22:41:36,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:41:36,335 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:41:36,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 302 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:41:36,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-23 22:41:36,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-23 22:41:36,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:41:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-11-23 22:41:36,365 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 140 [2024-11-23 22:41:36,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:41:36,367 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-11-23 22:41:36,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:41:36,367 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-11-23 22:41:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 22:41:36,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:41:36,372 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:41:36,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:41:36,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:41:36,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:41:36,375 INFO L85 PathProgramCache]: Analyzing trace with hash 818613540, now seen corresponding path program 1 times [2024-11-23 22:41:36,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:41:36,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506182491] [2024-11-23 22:41:36,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:41:36,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:41:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:41:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:41:43,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:41:43,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506182491] [2024-11-23 22:41:43,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506182491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:41:43,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:41:43,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 22:41:43,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055523171] [2024-11-23 22:41:43,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:41:43,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:41:43,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:41:43,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:41:43,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:41:43,456 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:41:44,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:41:44,935 INFO L93 Difference]: Finished difference Result 266 states and 381 transitions. [2024-11-23 22:41:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:41:44,936 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 140 [2024-11-23 22:41:44,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:41:44,939 INFO L225 Difference]: With dead ends: 266 [2024-11-23 22:41:44,939 INFO L226 Difference]: Without dead ends: 161 [2024-11-23 22:41:44,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:41:44,941 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 487 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:41:44,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:41:44,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-23 22:41:44,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 126. [2024-11-23 22:41:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 106 states have internal predecessors, (145), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:41:44,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 181 transitions. [2024-11-23 22:41:44,986 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 181 transitions. Word has length 140 [2024-11-23 22:41:44,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:41:44,988 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 181 transitions. [2024-11-23 22:41:44,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:41:44,989 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 181 transitions. [2024-11-23 22:41:44,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 22:41:44,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:41:44,997 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:41:44,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:41:44,997 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:41:44,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:41:44,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1519678118, now seen corresponding path program 1 times [2024-11-23 22:41:44,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:41:44,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595457457] [2024-11-23 22:41:44,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:41:44,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:41:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:41:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:41:54,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:41:54,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595457457] [2024-11-23 22:41:54,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595457457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:41:54,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:41:54,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 22:41:54,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359775600] [2024-11-23 22:41:54,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:41:54,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 22:41:54,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:41:54,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 22:41:54,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:41:54,197 INFO L87 Difference]: Start difference. First operand 126 states and 181 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:41:56,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:41:56,568 INFO L93 Difference]: Finished difference Result 357 states and 513 transitions. [2024-11-23 22:41:56,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:41:56,569 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-11-23 22:41:56,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:41:56,572 INFO L225 Difference]: With dead ends: 357 [2024-11-23 22:41:56,573 INFO L226 Difference]: Without dead ends: 234 [2024-11-23 22:41:56,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:41:56,575 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 242 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:41:56,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 692 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 22:41:56,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-23 22:41:56,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 227. [2024-11-23 22:41:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 188 states have (on average 1.3563829787234043) internal successors, (255), 188 states have internal predecessors, (255), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:41:56,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 327 transitions. [2024-11-23 22:41:56,672 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 327 transitions. Word has length 140 [2024-11-23 22:41:56,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:41:56,673 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 327 transitions. [2024-11-23 22:41:56,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:41:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 327 transitions. [2024-11-23 22:41:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-23 22:41:56,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:41:56,678 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:41:56,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:41:56,678 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:41:56,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:41:56,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2051277675, now seen corresponding path program 1 times [2024-11-23 22:41:56,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:41:56,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275273993] [2024-11-23 22:41:56,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:41:56,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:41:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:01,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:01,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275273993] [2024-11-23 22:42:01,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275273993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:01,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:01,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:42:01,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195875299] [2024-11-23 22:42:01,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:01,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:42:01,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:01,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:42:01,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:42:01,947 INFO L87 Difference]: Start difference. First operand 227 states and 327 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:42:03,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:03,076 INFO L93 Difference]: Finished difference Result 352 states and 508 transitions. [2024-11-23 22:42:03,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:42:03,077 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2024-11-23 22:42:03,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:03,080 INFO L225 Difference]: With dead ends: 352 [2024-11-23 22:42:03,080 INFO L226 Difference]: Without dead ends: 229 [2024-11-23 22:42:03,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:42:03,082 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 402 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:03,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 322 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 22:42:03,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-23 22:42:03,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 211. [2024-11-23 22:42:03,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 172 states have (on average 1.3372093023255813) internal successors, (230), 172 states have internal predecessors, (230), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:42:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 302 transitions. [2024-11-23 22:42:03,142 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 302 transitions. Word has length 142 [2024-11-23 22:42:03,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:03,143 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 302 transitions. [2024-11-23 22:42:03,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:42:03,144 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 302 transitions. [2024-11-23 22:42:03,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-23 22:42:03,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:03,146 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:03,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 22:42:03,147 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:03,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:03,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1542625043, now seen corresponding path program 1 times [2024-11-23 22:42:03,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:03,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388624164] [2024-11-23 22:42:03,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:03,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:15,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:15,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388624164] [2024-11-23 22:42:15,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388624164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:15,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:15,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 22:42:15,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629479802] [2024-11-23 22:42:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:15,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 22:42:15,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:15,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 22:42:15,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:42:15,110 INFO L87 Difference]: Start difference. First operand 211 states and 302 transitions. Second operand has 17 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 17 states have internal predecessors, (55), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:42:19,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:19,539 INFO L93 Difference]: Finished difference Result 387 states and 547 transitions. [2024-11-23 22:42:19,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:42:19,540 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 17 states have internal predecessors, (55), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 142 [2024-11-23 22:42:19,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:19,543 INFO L225 Difference]: With dead ends: 387 [2024-11-23 22:42:19,544 INFO L226 Difference]: Without dead ends: 280 [2024-11-23 22:42:19,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:42:19,546 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 419 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:19,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 876 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-23 22:42:19,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-23 22:42:19,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 276. [2024-11-23 22:42:19,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 231 states have (on average 1.341991341991342) internal successors, (310), 233 states have internal predecessors, (310), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-23 22:42:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 390 transitions. [2024-11-23 22:42:19,629 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 390 transitions. Word has length 142 [2024-11-23 22:42:19,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:19,630 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 390 transitions. [2024-11-23 22:42:19,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 17 states have internal predecessors, (55), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:42:19,630 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 390 transitions. [2024-11-23 22:42:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-23 22:42:19,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:19,633 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:19,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:42:19,634 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:19,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:19,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1602478714, now seen corresponding path program 1 times [2024-11-23 22:42:19,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:19,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963971844] [2024-11-23 22:42:19,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:19,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:20,096 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:20,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:20,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963971844] [2024-11-23 22:42:20,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963971844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:20,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:20,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:42:20,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744999724] [2024-11-23 22:42:20,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:20,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:42:20,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:20,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:42:20,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:42:20,099 INFO L87 Difference]: Start difference. First operand 276 states and 390 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:20,203 INFO L93 Difference]: Finished difference Result 540 states and 767 transitions. [2024-11-23 22:42:20,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:42:20,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-23 22:42:20,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:20,209 INFO L225 Difference]: With dead ends: 540 [2024-11-23 22:42:20,210 INFO L226 Difference]: Without dead ends: 276 [2024-11-23 22:42:20,211 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 [2024-11-23 22:42:20,212 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:20,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:42:20,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-23 22:42:20,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-11-23 22:42:20,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 231 states have (on average 1.329004329004329) internal successors, (307), 233 states have internal predecessors, (307), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-23 22:42:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 387 transitions. [2024-11-23 22:42:20,309 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 387 transitions. Word has length 145 [2024-11-23 22:42:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:20,310 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 387 transitions. [2024-11-23 22:42:20,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 387 transitions. [2024-11-23 22:42:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-23 22:42:20,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:20,313 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:20,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:42:20,313 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:20,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:20,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1015672700, now seen corresponding path program 1 times [2024-11-23 22:42:20,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:20,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760591232] [2024-11-23 22:42:20,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:20,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:21,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:21,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760591232] [2024-11-23 22:42:21,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760591232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:21,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:21,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:42:21,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422066138] [2024-11-23 22:42:21,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:21,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:42:21,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:21,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:42:21,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:42:21,375 INFO L87 Difference]: Start difference. First operand 276 states and 387 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:22,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:22,038 INFO L93 Difference]: Finished difference Result 658 states and 919 transitions. [2024-11-23 22:42:22,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:42:22,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-23 22:42:22,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:22,045 INFO L225 Difference]: With dead ends: 658 [2024-11-23 22:42:22,045 INFO L226 Difference]: Without dead ends: 394 [2024-11-23 22:42:22,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:42:22,047 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 175 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:22,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 603 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 22:42:22,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-23 22:42:22,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 311. [2024-11-23 22:42:22,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 266 states have (on average 1.3157894736842106) internal successors, (350), 268 states have internal predecessors, (350), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-23 22:42:22,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 430 transitions. [2024-11-23 22:42:22,158 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 430 transitions. Word has length 145 [2024-11-23 22:42:22,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:22,162 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 430 transitions. [2024-11-23 22:42:22,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:22,163 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 430 transitions. [2024-11-23 22:42:22,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-23 22:42:22,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:22,169 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:22,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:42:22,169 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:22,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:22,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2143372836, now seen corresponding path program 1 times [2024-11-23 22:42:22,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:22,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844216440] [2024-11-23 22:42:22,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:22,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:27,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:27,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844216440] [2024-11-23 22:42:27,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844216440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:27,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:27,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:42:27,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986775715] [2024-11-23 22:42:27,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:27,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:42:27,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:27,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:42:27,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:42:27,928 INFO L87 Difference]: Start difference. First operand 311 states and 430 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:42:30,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:30,588 INFO L93 Difference]: Finished difference Result 767 states and 1065 transitions. [2024-11-23 22:42:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:42:30,589 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-11-23 22:42:30,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:30,592 INFO L225 Difference]: With dead ends: 767 [2024-11-23 22:42:30,593 INFO L226 Difference]: Without dead ends: 468 [2024-11-23 22:42:30,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:42:30,595 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 353 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:30,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 943 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-23 22:42:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-23 22:42:30,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 446. [2024-11-23 22:42:30,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 382 states have (on average 1.324607329842932) internal successors, (506), 384 states have internal predecessors, (506), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:42:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 622 transitions. [2024-11-23 22:42:30,717 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 622 transitions. Word has length 146 [2024-11-23 22:42:30,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:30,718 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 622 transitions. [2024-11-23 22:42:30,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:42:30,719 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 622 transitions. [2024-11-23 22:42:30,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-23 22:42:30,721 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:30,721 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:30,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:42:30,722 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:30,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:30,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1450529882, now seen corresponding path program 1 times [2024-11-23 22:42:30,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:30,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118273670] [2024-11-23 22:42:30,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:30,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:33,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:33,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118273670] [2024-11-23 22:42:33,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118273670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:33,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:33,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:42:33,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163341647] [2024-11-23 22:42:33,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:33,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:42:33,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:33,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:42:33,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:42:33,486 INFO L87 Difference]: Start difference. First operand 446 states and 622 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:42:35,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:35,248 INFO L93 Difference]: Finished difference Result 1019 states and 1426 transitions. [2024-11-23 22:42:35,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:42:35,250 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-11-23 22:42:35,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:35,256 INFO L225 Difference]: With dead ends: 1019 [2024-11-23 22:42:35,257 INFO L226 Difference]: Without dead ends: 576 [2024-11-23 22:42:35,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:42:35,259 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 321 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:35,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 579 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:42:35,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-23 22:42:35,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 480. [2024-11-23 22:42:35,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 416 states have (on average 1.3293269230769231) internal successors, (553), 418 states have internal predecessors, (553), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:42:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 669 transitions. [2024-11-23 22:42:35,386 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 669 transitions. Word has length 146 [2024-11-23 22:42:35,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:35,386 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 669 transitions. [2024-11-23 22:42:35,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:42:35,387 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 669 transitions. [2024-11-23 22:42:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-23 22:42:35,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:35,389 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:35,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:42:35,389 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:35,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:35,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1325724386, now seen corresponding path program 1 times [2024-11-23 22:42:35,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:35,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953265565] [2024-11-23 22:42:35,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:35,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:39,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:39,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953265565] [2024-11-23 22:42:39,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953265565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:39,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:39,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 22:42:39,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29487282] [2024-11-23 22:42:39,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:39,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 22:42:39,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:39,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 22:42:39,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:42:39,920 INFO L87 Difference]: Start difference. First operand 480 states and 669 transitions. Second operand has 17 states, 15 states have (on average 3.933333333333333) internal successors, (59), 17 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:42:43,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:43,042 INFO L93 Difference]: Finished difference Result 970 states and 1351 transitions. [2024-11-23 22:42:43,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:42:43,043 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.933333333333333) internal successors, (59), 17 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2024-11-23 22:42:43,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:43,047 INFO L225 Difference]: With dead ends: 970 [2024-11-23 22:42:43,048 INFO L226 Difference]: Without dead ends: 493 [2024-11-23 22:42:43,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:42:43,050 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 381 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:43,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1185 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-23 22:42:43,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-23 22:42:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 481. [2024-11-23 22:42:43,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 417 states have (on average 1.328537170263789) internal successors, (554), 419 states have internal predecessors, (554), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:42:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 670 transitions. [2024-11-23 22:42:43,159 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 670 transitions. Word has length 146 [2024-11-23 22:42:43,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:43,160 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 670 transitions. [2024-11-23 22:42:43,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.933333333333333) internal successors, (59), 17 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:42:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 670 transitions. [2024-11-23 22:42:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-23 22:42:43,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:43,163 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:43,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 22:42:43,165 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:43,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:43,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2026788964, now seen corresponding path program 1 times [2024-11-23 22:42:43,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:43,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175663991] [2024-11-23 22:42:43,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:43,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:47,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:47,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175663991] [2024-11-23 22:42:47,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175663991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:47,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:47,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:42:47,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437326177] [2024-11-23 22:42:47,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:47,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:42:47,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:47,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:42:47,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:42:47,578 INFO L87 Difference]: Start difference. First operand 481 states and 670 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:42:50,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:50,040 INFO L93 Difference]: Finished difference Result 973 states and 1353 transitions. [2024-11-23 22:42:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:42:50,040 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-11-23 22:42:50,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:50,043 INFO L225 Difference]: With dead ends: 973 [2024-11-23 22:42:50,044 INFO L226 Difference]: Without dead ends: 495 [2024-11-23 22:42:50,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:42:50,046 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 225 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:50,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1102 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 22:42:50,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-23 22:42:50,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 480. [2024-11-23 22:42:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 416 states have (on average 1.3269230769230769) internal successors, (552), 418 states have internal predecessors, (552), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:42:50,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 668 transitions. [2024-11-23 22:42:50,186 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 668 transitions. Word has length 146 [2024-11-23 22:42:50,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:50,186 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 668 transitions. [2024-11-23 22:42:50,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:42:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 668 transitions. [2024-11-23 22:42:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-23 22:42:50,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:50,189 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:50,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 22:42:50,189 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:50,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash -390002472, now seen corresponding path program 1 times [2024-11-23 22:42:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:50,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582250736] [2024-11-23 22:42:50,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 22:42:50,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:50,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582250736] [2024-11-23 22:42:50,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582250736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:50,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018490961] [2024-11-23 22:42:50,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:50,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:50,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:50,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:50,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:42:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:50,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:42:50,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:50,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:42:50,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018490961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:50,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:42:50,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-23 22:42:50,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323137749] [2024-11-23 22:42:50,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:50,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:42:50,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:50,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:42:50,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:42:50,799 INFO L87 Difference]: Start difference. First operand 480 states and 668 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:50,942 INFO L93 Difference]: Finished difference Result 977 states and 1358 transitions. [2024-11-23 22:42:50,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:42:50,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-23 22:42:50,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:50,946 INFO L225 Difference]: With dead ends: 977 [2024-11-23 22:42:50,947 INFO L226 Difference]: Without dead ends: 500 [2024-11-23 22:42:50,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:42:50,948 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:50,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 734 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:42:50,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-23 22:42:51,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 491. [2024-11-23 22:42:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 427 states have (on average 1.3185011709601873) internal successors, (563), 429 states have internal predecessors, (563), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:42:51,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 679 transitions. [2024-11-23 22:42:51,057 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 679 transitions. Word has length 147 [2024-11-23 22:42:51,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:51,058 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 679 transitions. [2024-11-23 22:42:51,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 679 transitions. [2024-11-23 22:42:51,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-23 22:42:51,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:51,059 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:51,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 22:42:51,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 22:42:51,260 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:51,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:51,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1451337970, now seen corresponding path program 1 times [2024-11-23 22:42:51,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:51,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133803616] [2024-11-23 22:42:51,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:51,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 22:42:51,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:51,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133803616] [2024-11-23 22:42:51,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133803616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:51,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527418743] [2024-11-23 22:42:51,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:51,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:51,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:51,496 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:51,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:42:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:51,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:42:51,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:51,929 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:42:51,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527418743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:51,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:42:51,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-23 22:42:51,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584163762] [2024-11-23 22:42:51,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:51,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:42:51,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:51,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:42:51,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:42:51,931 INFO L87 Difference]: Start difference. First operand 491 states and 679 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:52,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:52,049 INFO L93 Difference]: Finished difference Result 994 states and 1375 transitions. [2024-11-23 22:42:52,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:42:52,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-23 22:42:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:52,053 INFO L225 Difference]: With dead ends: 994 [2024-11-23 22:42:52,053 INFO L226 Difference]: Without dead ends: 506 [2024-11-23 22:42:52,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:42:52,055 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:52,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:42:52,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-23 22:42:52,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-23 22:42:52,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 442 states have (on average 1.3076923076923077) internal successors, (578), 444 states have internal predecessors, (578), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:42:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 694 transitions. [2024-11-23 22:42:52,155 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 694 transitions. Word has length 147 [2024-11-23 22:42:52,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:52,155 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 694 transitions. [2024-11-23 22:42:52,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:52,156 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 694 transitions. [2024-11-23 22:42:52,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 22:42:52,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:52,157 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:52,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 22:42:52,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-23 22:42:52,358 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:52,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:52,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1207686357, now seen corresponding path program 1 times [2024-11-23 22:42:52,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:52,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150525402] [2024-11-23 22:42:52,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:52,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:53,437 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:53,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:53,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150525402] [2024-11-23 22:42:53,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150525402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:53,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:53,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:42:53,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859457043] [2024-11-23 22:42:53,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:53,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:42:53,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:53,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:42:53,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:42:53,441 INFO L87 Difference]: Start difference. First operand 506 states and 694 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:54,863 INFO L93 Difference]: Finished difference Result 969 states and 1327 transitions. [2024-11-23 22:42:54,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:42:54,864 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-23 22:42:54,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:54,867 INFO L225 Difference]: With dead ends: 969 [2024-11-23 22:42:54,867 INFO L226 Difference]: Without dead ends: 623 [2024-11-23 22:42:54,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:42:54,869 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 58 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:54,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1140 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:42:54,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-23 22:42:55,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 506. [2024-11-23 22:42:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 442 states have (on average 1.3076923076923077) internal successors, (578), 444 states have internal predecessors, (578), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:42:55,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 694 transitions. [2024-11-23 22:42:55,004 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 694 transitions. Word has length 148 [2024-11-23 22:42:55,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:55,004 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 694 transitions. [2024-11-23 22:42:55,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:42:55,005 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 694 transitions. [2024-11-23 22:42:55,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 22:42:55,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:55,006 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:55,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 22:42:55,007 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:55,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:55,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2025334807, now seen corresponding path program 1 times [2024-11-23 22:42:55,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:55,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704664081] [2024-11-23 22:42:55,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:55,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:57,496 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:42:57,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:57,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704664081] [2024-11-23 22:42:57,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704664081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:42:57,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:42:57,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 22:42:57,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784365666] [2024-11-23 22:42:57,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:42:57,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:42:57,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:57,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:42:57,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:42:57,498 INFO L87 Difference]: Start difference. First operand 506 states and 694 transitions. Second operand has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:42:59,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:59,377 INFO L93 Difference]: Finished difference Result 995 states and 1361 transitions. [2024-11-23 22:42:59,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:42:59,378 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 148 [2024-11-23 22:42:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:59,381 INFO L225 Difference]: With dead ends: 995 [2024-11-23 22:42:59,382 INFO L226 Difference]: Without dead ends: 649 [2024-11-23 22:42:59,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:42:59,383 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 265 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:59,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 792 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:42:59,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-23 22:42:59,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 529. [2024-11-23 22:42:59,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 465 states have (on average 1.303225806451613) internal successors, (606), 467 states have internal predecessors, (606), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:42:59,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 722 transitions. [2024-11-23 22:42:59,498 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 722 transitions. Word has length 148 [2024-11-23 22:42:59,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:59,499 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 722 transitions. [2024-11-23 22:42:59,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:42:59,499 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 722 transitions. [2024-11-23 22:42:59,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 22:42:59,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:59,501 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:59,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 22:42:59,501 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:59,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:59,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1324270229, now seen corresponding path program 1 times [2024-11-23 22:42:59,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:59,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48116184] [2024-11-23 22:42:59,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:59,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:00,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:00,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48116184] [2024-11-23 22:43:00,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48116184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:00,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:43:00,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:43:00,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571326952] [2024-11-23 22:43:00,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:00,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:43:00,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:00,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:43:00,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:43:00,204 INFO L87 Difference]: Start difference. First operand 529 states and 722 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:43:01,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:01,259 INFO L93 Difference]: Finished difference Result 1020 states and 1388 transitions. [2024-11-23 22:43:01,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:43:01,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-23 22:43:01,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:01,263 INFO L225 Difference]: With dead ends: 1020 [2024-11-23 22:43:01,263 INFO L226 Difference]: Without dead ends: 651 [2024-11-23 22:43:01,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:43:01,265 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 54 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:01,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1064 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:43:01,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-23 22:43:01,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 497. [2024-11-23 22:43:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 433 states have (on average 1.2933025404157044) internal successors, (560), 435 states have internal predecessors, (560), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:43:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 676 transitions. [2024-11-23 22:43:01,370 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 676 transitions. Word has length 148 [2024-11-23 22:43:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:01,370 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 676 transitions. [2024-11-23 22:43:01,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:43:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 676 transitions. [2024-11-23 22:43:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 22:43:01,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:01,372 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:01,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 22:43:01,372 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:01,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash 59652717, now seen corresponding path program 1 times [2024-11-23 22:43:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:01,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847493515] [2024-11-23 22:43:01,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:01,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:09,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:09,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847493515] [2024-11-23 22:43:09,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847493515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:09,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:43:09,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 22:43:09,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536292199] [2024-11-23 22:43:09,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:09,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 22:43:09,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:09,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 22:43:09,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:43:09,077 INFO L87 Difference]: Start difference. First operand 497 states and 676 transitions. Second operand has 19 states, 15 states have (on average 4.066666666666666) internal successors, (61), 19 states have internal predecessors, (61), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-23 22:43:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:14,126 INFO L93 Difference]: Finished difference Result 883 states and 1196 transitions. [2024-11-23 22:43:14,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:43:14,127 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 4.066666666666666) internal successors, (61), 19 states have internal predecessors, (61), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) Word has length 148 [2024-11-23 22:43:14,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:14,130 INFO L225 Difference]: With dead ends: 883 [2024-11-23 22:43:14,130 INFO L226 Difference]: Without dead ends: 546 [2024-11-23 22:43:14,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-11-23 22:43:14,132 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 416 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:14,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 980 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-23 22:43:14,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-23 22:43:14,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 504. [2024-11-23 22:43:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 440 states have (on average 1.290909090909091) internal successors, (568), 442 states have internal predecessors, (568), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:43:14,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 684 transitions. [2024-11-23 22:43:14,244 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 684 transitions. Word has length 148 [2024-11-23 22:43:14,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:14,245 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 684 transitions. [2024-11-23 22:43:14,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 4.066666666666666) internal successors, (61), 19 states have internal predecessors, (61), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-23 22:43:14,245 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 684 transitions. [2024-11-23 22:43:14,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 22:43:14,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:14,248 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:14,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 22:43:14,249 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:14,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 760717295, now seen corresponding path program 1 times [2024-11-23 22:43:14,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:14,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726057342] [2024-11-23 22:43:14,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:17,186 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:17,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:17,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726057342] [2024-11-23 22:43:17,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726057342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:17,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:43:17,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:43:17,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324343568] [2024-11-23 22:43:17,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:17,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:43:17,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:17,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:43:17,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:43:17,189 INFO L87 Difference]: Start difference. First operand 504 states and 684 transitions. Second operand has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:43:18,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:18,510 INFO L93 Difference]: Finished difference Result 1212 states and 1638 transitions. [2024-11-23 22:43:18,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:43:18,510 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 148 [2024-11-23 22:43:18,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:18,514 INFO L225 Difference]: With dead ends: 1212 [2024-11-23 22:43:18,514 INFO L226 Difference]: Without dead ends: 711 [2024-11-23 22:43:18,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:43:18,516 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 485 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:18,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 464 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:43:18,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-23 22:43:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 591. [2024-11-23 22:43:18,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 527 states have (on average 1.2808349146110056) internal successors, (675), 529 states have internal predecessors, (675), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:43:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 791 transitions. [2024-11-23 22:43:18,643 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 791 transitions. Word has length 148 [2024-11-23 22:43:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:18,643 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 791 transitions. [2024-11-23 22:43:18,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:43:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 791 transitions. [2024-11-23 22:43:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 22:43:18,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:18,645 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:18,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 22:43:18,646 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:18,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:18,646 INFO L85 PathProgramCache]: Analyzing trace with hash 979572013, now seen corresponding path program 1 times [2024-11-23 22:43:18,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:18,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880273667] [2024-11-23 22:43:18,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:18,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:22,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:22,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880273667] [2024-11-23 22:43:22,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880273667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:22,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:43:22,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-23 22:43:22,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471021235] [2024-11-23 22:43:22,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:22,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 22:43:22,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:22,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 22:43:22,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:43:22,767 INFO L87 Difference]: Start difference. First operand 591 states and 791 transitions. Second operand has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:43:25,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:25,639 INFO L93 Difference]: Finished difference Result 1071 states and 1425 transitions. [2024-11-23 22:43:25,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:43:25,640 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 148 [2024-11-23 22:43:25,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:25,643 INFO L225 Difference]: With dead ends: 1071 [2024-11-23 22:43:25,643 INFO L226 Difference]: Without dead ends: 640 [2024-11-23 22:43:25,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:43:25,645 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 233 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:25,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1159 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 22:43:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-11-23 22:43:25,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 584. [2024-11-23 22:43:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 520 states have (on average 1.2826923076923078) internal successors, (667), 522 states have internal predecessors, (667), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:43:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 783 transitions. [2024-11-23 22:43:25,767 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 783 transitions. Word has length 148 [2024-11-23 22:43:25,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:25,767 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 783 transitions. [2024-11-23 22:43:25,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:43:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 783 transitions. [2024-11-23 22:43:25,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-23 22:43:25,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:25,769 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:25,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 22:43:25,769 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:25,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:25,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2068856573, now seen corresponding path program 1 times [2024-11-23 22:43:25,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:25,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5901170] [2024-11-23 22:43:25,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:25,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 22:43:25,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:25,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5901170] [2024-11-23 22:43:25,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5901170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:43:25,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484937909] [2024-11-23 22:43:25,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:25,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:43:25,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:43:26,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:43:26,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 22:43:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:26,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:43:26,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:43:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:26,425 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:43:26,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484937909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:26,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:43:26,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-11-23 22:43:26,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636566660] [2024-11-23 22:43:26,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:26,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:43:26,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:26,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:43:26,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:43:26,426 INFO L87 Difference]: Start difference. First operand 584 states and 783 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:43:26,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:26,548 INFO L93 Difference]: Finished difference Result 1199 states and 1602 transitions. [2024-11-23 22:43:26,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:43:26,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-23 22:43:26,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:26,552 INFO L225 Difference]: With dead ends: 1199 [2024-11-23 22:43:26,552 INFO L226 Difference]: Without dead ends: 618 [2024-11-23 22:43:26,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:43:26,554 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:26,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 876 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:43:26,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-23 22:43:26,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 589. [2024-11-23 22:43:26,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 525 states have (on average 1.28) internal successors, (672), 527 states have internal predecessors, (672), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:43:26,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 788 transitions. [2024-11-23 22:43:26,668 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 788 transitions. Word has length 149 [2024-11-23 22:43:26,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:26,669 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 788 transitions. [2024-11-23 22:43:26,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:43:26,669 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 788 transitions. [2024-11-23 22:43:26,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-23 22:43:26,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:26,671 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:26,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 22:43:26,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:43:26,871 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:26,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:26,872 INFO L85 PathProgramCache]: Analyzing trace with hash -621698327, now seen corresponding path program 1 times [2024-11-23 22:43:26,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:26,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876048182] [2024-11-23 22:43:26,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:26,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:30,061 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:30,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:30,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876048182] [2024-11-23 22:43:30,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876048182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:30,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:43:30,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 22:43:30,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229644215] [2024-11-23 22:43:30,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:30,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:43:30,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:30,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:43:30,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:43:30,063 INFO L87 Difference]: Start difference. First operand 589 states and 788 transitions. Second operand has 16 states, 14 states have (on average 4.428571428571429) internal successors, (62), 16 states have internal predecessors, (62), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:43:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:32,069 INFO L93 Difference]: Finished difference Result 1128 states and 1480 transitions. [2024-11-23 22:43:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:43:32,070 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.428571428571429) internal successors, (62), 16 states have internal predecessors, (62), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 149 [2024-11-23 22:43:32,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:32,075 INFO L225 Difference]: With dead ends: 1128 [2024-11-23 22:43:32,075 INFO L226 Difference]: Without dead ends: 1126 [2024-11-23 22:43:32,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-11-23 22:43:32,078 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 642 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:32,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 632 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:43:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-23 22:43:32,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 960. [2024-11-23 22:43:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 896 states have (on average 1.2845982142857142) internal successors, (1151), 898 states have internal predecessors, (1151), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 22:43:32,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1267 transitions. [2024-11-23 22:43:32,224 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1267 transitions. Word has length 149 [2024-11-23 22:43:32,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:32,225 INFO L471 AbstractCegarLoop]: Abstraction has 960 states and 1267 transitions. [2024-11-23 22:43:32,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.428571428571429) internal successors, (62), 16 states have internal predecessors, (62), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:43:32,225 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1267 transitions. [2024-11-23 22:43:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-23 22:43:32,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:32,227 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:32,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 22:43:32,227 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:32,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:32,228 INFO L85 PathProgramCache]: Analyzing trace with hash 256648277, now seen corresponding path program 1 times [2024-11-23 22:43:32,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:32,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895657247] [2024-11-23 22:43:32,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:32,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:37,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:37,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895657247] [2024-11-23 22:43:37,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895657247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:37,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:43:37,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:43:37,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272003522] [2024-11-23 22:43:37,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:37,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:43:37,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:37,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:43:37,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:43:37,134 INFO L87 Difference]: Start difference. First operand 960 states and 1267 transitions. Second operand has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 14 states have internal predecessors, (62), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:43:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:39,185 INFO L93 Difference]: Finished difference Result 1918 states and 2529 transitions. [2024-11-23 22:43:39,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:43:39,185 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 14 states have internal predecessors, (62), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 149 [2024-11-23 22:43:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:39,189 INFO L225 Difference]: With dead ends: 1918 [2024-11-23 22:43:39,190 INFO L226 Difference]: Without dead ends: 961 [2024-11-23 22:43:39,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:43:39,192 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 351 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:39,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 485 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 22:43:39,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-11-23 22:43:39,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 679. [2024-11-23 22:43:39,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 638 states have (on average 1.2884012539184952) internal successors, (822), 638 states have internal predecessors, (822), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:43:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 894 transitions. [2024-11-23 22:43:39,298 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 894 transitions. Word has length 149 [2024-11-23 22:43:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:39,298 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 894 transitions. [2024-11-23 22:43:39,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 14 states have internal predecessors, (62), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:43:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 894 transitions. [2024-11-23 22:43:39,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-23 22:43:39,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:39,300 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:39,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 22:43:39,301 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:39,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:39,301 INFO L85 PathProgramCache]: Analyzing trace with hash 917240244, now seen corresponding path program 1 times [2024-11-23 22:43:39,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:39,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801694884] [2024-11-23 22:43:39,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:39,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:44,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:44,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801694884] [2024-11-23 22:43:44,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801694884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:44,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:43:44,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-23 22:43:44,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29523022] [2024-11-23 22:43:44,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:44,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 22:43:44,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:44,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 22:43:44,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:43:44,376 INFO L87 Difference]: Start difference. First operand 679 states and 894 transitions. Second operand has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:43:48,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:48,405 INFO L93 Difference]: Finished difference Result 1258 states and 1645 transitions. [2024-11-23 22:43:48,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 22:43:48,406 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 150 [2024-11-23 22:43:48,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:48,408 INFO L225 Difference]: With dead ends: 1258 [2024-11-23 22:43:48,408 INFO L226 Difference]: Without dead ends: 823 [2024-11-23 22:43:48,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2024-11-23 22:43:48,409 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 552 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:48,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1254 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 22:43:48,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-11-23 22:43:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 693. [2024-11-23 22:43:48,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 652 states have (on average 1.2852760736196318) internal successors, (838), 652 states have internal predecessors, (838), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:43:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 910 transitions. [2024-11-23 22:43:48,503 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 910 transitions. Word has length 150 [2024-11-23 22:43:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:48,503 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 910 transitions. [2024-11-23 22:43:48,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:43:48,504 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 910 transitions. [2024-11-23 22:43:48,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-23 22:43:48,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:48,505 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:48,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 22:43:48,506 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:48,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:48,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1837159540, now seen corresponding path program 1 times [2024-11-23 22:43:48,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:48,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599236487] [2024-11-23 22:43:48,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:48,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:49,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:49,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599236487] [2024-11-23 22:43:49,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599236487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:49,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:43:49,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:43:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826777112] [2024-11-23 22:43:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:49,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:43:49,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:49,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:43:49,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:43:49,982 INFO L87 Difference]: Start difference. First operand 693 states and 910 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:43:51,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:51,926 INFO L93 Difference]: Finished difference Result 1256 states and 1641 transitions. [2024-11-23 22:43:51,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:43:51,927 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 150 [2024-11-23 22:43:51,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:51,929 INFO L225 Difference]: With dead ends: 1256 [2024-11-23 22:43:51,929 INFO L226 Difference]: Without dead ends: 807 [2024-11-23 22:43:51,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:43:51,930 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 273 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:51,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1116 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 22:43:51,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-11-23 22:43:52,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 679. [2024-11-23 22:43:52,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 638 states have (on average 1.2884012539184952) internal successors, (822), 638 states have internal predecessors, (822), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:43:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 894 transitions. [2024-11-23 22:43:52,033 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 894 transitions. Word has length 150 [2024-11-23 22:43:52,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:52,034 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 894 transitions. [2024-11-23 22:43:52,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:43:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 894 transitions. [2024-11-23 22:43:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-23 22:43:52,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:52,035 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:52,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 22:43:52,036 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:52,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash -329264334, now seen corresponding path program 1 times [2024-11-23 22:43:52,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:52,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155310277] [2024-11-23 22:43:52,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:52,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:43:55,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:43:55,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155310277] [2024-11-23 22:43:55,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155310277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:43:55,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:43:55,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 22:43:55,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417029583] [2024-11-23 22:43:55,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:55,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:43:55,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:43:55,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:43:55,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:43:55,674 INFO L87 Difference]: Start difference. First operand 679 states and 894 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:43:57,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:57,915 INFO L93 Difference]: Finished difference Result 1424 states and 1870 transitions. [2024-11-23 22:43:57,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:43:57,916 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2024-11-23 22:43:57,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:57,919 INFO L225 Difference]: With dead ends: 1424 [2024-11-23 22:43:57,919 INFO L226 Difference]: Without dead ends: 748 [2024-11-23 22:43:57,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:43:57,921 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 234 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:57,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 895 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 22:43:57,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-11-23 22:43:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 665. [2024-11-23 22:43:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 624 states have (on average 1.294871794871795) internal successors, (808), 624 states have internal predecessors, (808), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:43:58,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 880 transitions. [2024-11-23 22:43:58,044 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 880 transitions. Word has length 150 [2024-11-23 22:43:58,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:58,044 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 880 transitions. [2024-11-23 22:43:58,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:43:58,045 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 880 transitions. [2024-11-23 22:43:58,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-23 22:43:58,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:58,046 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:58,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 22:43:58,046 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:58,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:58,049 INFO L85 PathProgramCache]: Analyzing trace with hash -463277840, now seen corresponding path program 1 times [2024-11-23 22:43:58,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:43:58,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255302131] [2024-11-23 22:43:58,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:58,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:43:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:44:00,259 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:44:00,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:44:00,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255302131] [2024-11-23 22:44:00,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255302131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:44:00,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:44:00,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:44:00,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474844493] [2024-11-23 22:44:00,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:44:00,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:44:00,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:44:00,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:44:00,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:44:00,261 INFO L87 Difference]: Start difference. First operand 665 states and 880 transitions. Second operand has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:44:01,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:44:01,599 INFO L93 Difference]: Finished difference Result 1503 states and 1986 transitions. [2024-11-23 22:44:01,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:44:01,599 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 150 [2024-11-23 22:44:01,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:44:01,603 INFO L225 Difference]: With dead ends: 1503 [2024-11-23 22:44:01,603 INFO L226 Difference]: Without dead ends: 841 [2024-11-23 22:44:01,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:44:01,604 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 484 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:44:01,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 562 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:44:01,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-23 22:44:01,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 665. [2024-11-23 22:44:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 624 states have (on average 1.266025641025641) internal successors, (790), 624 states have internal predecessors, (790), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:44:01,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 862 transitions. [2024-11-23 22:44:01,708 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 862 transitions. Word has length 150 [2024-11-23 22:44:01,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:44:01,709 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 862 transitions. [2024-11-23 22:44:01,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:44:01,709 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 862 transitions. [2024-11-23 22:44:01,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-23 22:44:01,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:44:01,711 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:44:01,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 22:44:01,711 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:44:01,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:44:01,712 INFO L85 PathProgramCache]: Analyzing trace with hash 237786738, now seen corresponding path program 1 times [2024-11-23 22:44:01,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:44:01,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221023210] [2024-11-23 22:44:01,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:44:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:44:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:44:04,343 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:44:04,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:44:04,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221023210] [2024-11-23 22:44:04,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221023210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:44:04,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:44:04,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 22:44:04,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700017715] [2024-11-23 22:44:04,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:44:04,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:44:04,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:44:04,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:44:04,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:44:04,348 INFO L87 Difference]: Start difference. First operand 665 states and 862 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:44:06,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:44:06,503 INFO L93 Difference]: Finished difference Result 1396 states and 1804 transitions. [2024-11-23 22:44:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:44:06,504 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2024-11-23 22:44:06,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:44:06,506 INFO L225 Difference]: With dead ends: 1396 [2024-11-23 22:44:06,506 INFO L226 Difference]: Without dead ends: 734 [2024-11-23 22:44:06,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:44:06,507 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 148 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:44:06,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1109 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 22:44:06,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-11-23 22:44:06,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 649. [2024-11-23 22:44:06,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 608 states have (on average 1.269736842105263) internal successors, (772), 608 states have internal predecessors, (772), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:44:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 844 transitions. [2024-11-23 22:44:06,567 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 844 transitions. Word has length 150 [2024-11-23 22:44:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:44:06,567 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 844 transitions. [2024-11-23 22:44:06,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:44:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 844 transitions. [2024-11-23 22:44:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 22:44:06,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:44:06,569 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:44:06,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 22:44:06,569 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:44:06,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:44:06,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1072057838, now seen corresponding path program 1 times [2024-11-23 22:44:06,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:44:06,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108174188] [2024-11-23 22:44:06,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:44:06,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:44:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:44:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:44:14,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:44:14,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108174188] [2024-11-23 22:44:14,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108174188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:44:14,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:44:14,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-23 22:44:14,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985456668] [2024-11-23 22:44:14,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:44:14,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 22:44:14,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:44:14,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 22:44:14,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:44:14,002 INFO L87 Difference]: Start difference. First operand 649 states and 844 transitions. Second operand has 22 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:44:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:44:23,506 INFO L93 Difference]: Finished difference Result 1256 states and 1619 transitions. [2024-11-23 22:44:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-23 22:44:23,507 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 151 [2024-11-23 22:44:23,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:44:23,510 INFO L225 Difference]: With dead ends: 1256 [2024-11-23 22:44:23,510 INFO L226 Difference]: Without dead ends: 821 [2024-11-23 22:44:23,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=273, Invalid=1287, Unknown=0, NotChecked=0, Total=1560 [2024-11-23 22:44:23,512 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 362 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:44:23,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1447 Invalid, 2164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-23 22:44:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-23 22:44:23,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 689. [2024-11-23 22:44:23,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 648 states have (on average 1.2746913580246915) internal successors, (826), 648 states have internal predecessors, (826), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:44:23,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 898 transitions. [2024-11-23 22:44:23,623 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 898 transitions. Word has length 151 [2024-11-23 22:44:23,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:44:23,623 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 898 transitions. [2024-11-23 22:44:23,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:44:23,624 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 898 transitions. [2024-11-23 22:44:23,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 22:44:23,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:44:23,626 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:44:23,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 22:44:23,626 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:44:23,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:44:23,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2013244174, now seen corresponding path program 1 times [2024-11-23 22:44:23,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:44:23,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294769594] [2024-11-23 22:44:23,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:44:23,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:44:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:44:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:44:31,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:44:31,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294769594] [2024-11-23 22:44:31,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294769594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:44:31,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:44:31,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2024-11-23 22:44:31,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359999136] [2024-11-23 22:44:31,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:44:31,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-23 22:44:31,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:44:31,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-23 22:44:31,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2024-11-23 22:44:31,160 INFO L87 Difference]: Start difference. First operand 689 states and 898 transitions. Second operand has 26 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 26 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:44:41,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:44:41,812 INFO L93 Difference]: Finished difference Result 1276 states and 1654 transitions. [2024-11-23 22:44:41,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-23 22:44:41,813 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 26 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 151 [2024-11-23 22:44:41,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:44:41,816 INFO L225 Difference]: With dead ends: 1276 [2024-11-23 22:44:41,816 INFO L226 Difference]: Without dead ends: 801 [2024-11-23 22:44:41,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=384, Invalid=2066, Unknown=0, NotChecked=0, Total=2450 [2024-11-23 22:44:41,818 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 462 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 3039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:44:41,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 2077 Invalid, 3039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-23 22:44:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-23 22:44:41,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 687. [2024-11-23 22:44:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 646 states have (on average 1.2724458204334366) internal successors, (822), 646 states have internal predecessors, (822), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:44:41,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 894 transitions. [2024-11-23 22:44:41,899 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 894 transitions. Word has length 151 [2024-11-23 22:44:41,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:44:41,899 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 894 transitions. [2024-11-23 22:44:41,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 26 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:44:41,899 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 894 transitions. [2024-11-23 22:44:41,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 22:44:41,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:44:41,901 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:44:41,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 22:44:41,901 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:44:41,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:44:41,902 INFO L85 PathProgramCache]: Analyzing trace with hash -906512689, now seen corresponding path program 1 times [2024-11-23 22:44:41,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:44:41,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700353107] [2024-11-23 22:44:41,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:44:41,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:44:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:44:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 22:44:45,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:44:45,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700353107] [2024-11-23 22:44:45,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700353107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:44:45,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851686637] [2024-11-23 22:44:45,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:44:45,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:44:45,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:44:45,376 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:44:45,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 22:44:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:44:46,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 88 conjuncts are in the unsatisfiable core [2024-11-23 22:44:46,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:44:46,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2024-11-23 22:44:46,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2024-11-23 22:44:47,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2024-11-23 22:44:48,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2024-11-23 22:44:49,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2024-11-23 22:44:50,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2024-11-23 22:44:51,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2024-11-23 22:44:52,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2024-11-23 22:44:52,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2024-11-23 22:44:53,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2024-11-23 22:44:54,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-23 22:44:55,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-23 22:44:55,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:44:55,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:44:55,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-23 22:44:55,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:44:55,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:44:55,458 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-23 22:44:55,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 45 [2024-11-23 22:44:55,710 INFO L349 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2024-11-23 22:44:55,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 37 [2024-11-23 22:44:56,098 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 69 proven. 421 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-23 22:44:56,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:45:00,449 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_11_Pointer~0.offset Int) (~WrapperStruct00_var_1_3_Pointer~0.offset Int) (~WrapperStruct00_var_1_11_Pointer~0.base Int)) (let ((.cse0 (let ((.cse1 (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (mod (select (select |c_#memory_int| c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2) (* (- 1) (select (select |c_#memory_int| c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select |c_#memory_int| c_~WrapperStruct00_var_1_3_Pointer~0.base) ~WrapperStruct00_var_1_3_Pointer~0.offset)))))) (store .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select (select .cse1 ~WrapperStruct00_var_1_11_Pointer~0.base) ~WrapperStruct00_var_1_11_Pointer~0.offset)))))) (< (mod (select (select .cse0 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296)))) is different from false [2024-11-23 22:46:44,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851686637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:46:44,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:46:44,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2024-11-23 22:46:44,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642080442] [2024-11-23 22:46:44,722 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:46:44,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-23 22:46:44,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:46:44,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-23 22:46:44,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1059, Unknown=19, NotChecked=68, Total=1332 [2024-11-23 22:46:44,724 INFO L87 Difference]: Start difference. First operand 687 states and 894 transitions. Second operand has 30 states, 28 states have (on average 4.75) internal successors, (133), 30 states have internal predecessors, (133), 11 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-23 22:46:56,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:46:56,134 INFO L93 Difference]: Finished difference Result 1797 states and 2334 transitions. [2024-11-23 22:46:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-23 22:46:56,135 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 4.75) internal successors, (133), 30 states have internal predecessors, (133), 11 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) Word has length 151 [2024-11-23 22:46:56,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:46:56,138 INFO L225 Difference]: With dead ends: 1797 [2024-11-23 22:46:56,138 INFO L226 Difference]: Without dead ends: 1113 [2024-11-23 22:46:56,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 116.9s TimeCoverageRelationStatistics Valid=677, Invalid=3213, Unknown=20, NotChecked=122, Total=4032 [2024-11-23 22:46:56,141 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 423 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:46:56,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1327 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 22:46:56,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2024-11-23 22:46:56,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 982. [2024-11-23 22:46:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 897 states have (on average 1.2720178372352284) internal successors, (1141), 897 states have internal predecessors, (1141), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 22:46:56,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1285 transitions. [2024-11-23 22:46:56,336 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1285 transitions. Word has length 151 [2024-11-23 22:46:56,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:46:56,336 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1285 transitions. [2024-11-23 22:46:56,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 4.75) internal successors, (133), 30 states have internal predecessors, (133), 11 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-23 22:46:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1285 transitions. [2024-11-23 22:46:56,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 22:46:56,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:46:56,337 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:46:56,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 22:46:56,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-23 22:46:56,542 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:46:56,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:46:56,542 INFO L85 PathProgramCache]: Analyzing trace with hash 303152595, now seen corresponding path program 1 times [2024-11-23 22:46:56,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:46:56,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732926953] [2024-11-23 22:46:56,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:46:56,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:46:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:46:58,832 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 22:46:58,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:46:58,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732926953] [2024-11-23 22:46:58,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732926953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:46:58,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851679722] [2024-11-23 22:46:58,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:46:58,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:46:58,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:46:58,834 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:46:58,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 22:46:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:46:59,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-23 22:46:59,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:46:59,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:47:00,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:00,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:01,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:01,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:02,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:02,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:03,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:03,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:04,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:04,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:47:04,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:04,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:47:04,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:47:04,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:47:05,008 INFO L349 Elim1Store]: treesize reduction 72, result has 37.4 percent of original size [2024-11-23 22:47:05,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 70 [2024-11-23 22:47:05,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-23 22:47:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 15 proven. 173 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-23 22:47:05,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:47:09,612 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_4_Pointer~0.offset Int) (~WrapperStruct00_var_1_4_Pointer~0.base Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int)) (< 65535 (mod (select (select (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (select (select |c_#memory_int| c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) (* 2 (mod (select (select |c_#memory_int| ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536)) (* (- 1) (select (select |c_#memory_int| ~WrapperStruct00_var_1_4_Pointer~0.base) ~WrapperStruct00_var_1_4_Pointer~0.offset))))) c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 4294967296))) is different from false [2024-11-23 22:47:13,635 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_4_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_4_Pointer~0.base Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int) (v_ArrVal_3927 Int)) (< 65535 (mod (select (select (let ((.cse0 (store |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_3927)))) (store .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (mod (select (select .cse0 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2) (* (- 1) (select (select .cse0 ~WrapperStruct00_var_1_4_Pointer~0.base) ~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select .cse0 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset))))) c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 4294967296))) is different from false [2024-11-23 22:47:17,775 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_4_Pointer~0.offset Int) (~WrapperStruct00_var_1_4_Pointer~0.base Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int) (v_ArrVal_3926 Int) (v_ArrVal_3927 Int)) (< 65535 (mod (select (select (let ((.cse0 (let ((.cse1 (store |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base) c_~WrapperStruct00_var_1_6_Pointer~0.offset v_ArrVal_3926)))) (store .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_3927))))) (store .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (- 1) (select (select .cse0 ~WrapperStruct00_var_1_4_Pointer~0.base) ~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select .cse0 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) (* (mod (select (select .cse0 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2))))) c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 4294967296))) is different from false [2024-11-23 22:47:17,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851679722] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:47:17,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:47:17,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2024-11-23 22:47:17,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086562847] [2024-11-23 22:47:17,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:47:17,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-23 22:47:17,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:17,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-23 22:47:17,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=795, Unknown=3, NotChecked=180, Total=1122 [2024-11-23 22:47:17,826 INFO L87 Difference]: Start difference. First operand 982 states and 1285 transitions. Second operand has 27 states, 25 states have (on average 4.64) internal successors, (116), 27 states have internal predecessors, (116), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-23 22:47:22,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:22,674 INFO L93 Difference]: Finished difference Result 2074 states and 2675 transitions. [2024-11-23 22:47:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:47:22,674 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 4.64) internal successors, (116), 27 states have internal predecessors, (116), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) Word has length 151 [2024-11-23 22:47:22,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:22,677 INFO L225 Difference]: With dead ends: 2074 [2024-11-23 22:47:22,677 INFO L226 Difference]: Without dead ends: 1201 [2024-11-23 22:47:22,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=299, Invalid=1192, Unknown=3, NotChecked=228, Total=1722 [2024-11-23 22:47:22,679 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 290 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:22,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1019 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-23 22:47:22,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-11-23 22:47:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 950. [2024-11-23 22:47:22,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 861 states have (on average 1.2671312427409989) internal successors, (1091), 861 states have internal predecessors, (1091), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 22:47:22,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1235 transitions. [2024-11-23 22:47:22,872 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1235 transitions. Word has length 151 [2024-11-23 22:47:22,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:22,873 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1235 transitions. [2024-11-23 22:47:22,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 4.64) internal successors, (116), 27 states have internal predecessors, (116), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-23 22:47:22,873 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1235 transitions. [2024-11-23 22:47:22,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-23 22:47:22,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:22,874 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:22,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 22:47:23,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-23 22:47:23,075 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:47:23,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:23,075 INFO L85 PathProgramCache]: Analyzing trace with hash -821371719, now seen corresponding path program 1 times [2024-11-23 22:47:23,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:23,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514868473] [2024-11-23 22:47:23,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:23,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:47:29,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:47:29,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514868473] [2024-11-23 22:47:29,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514868473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:47:29,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:47:29,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 22:47:29,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390203905] [2024-11-23 22:47:29,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:47:29,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 22:47:29,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:29,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 22:47:29,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:47:29,126 INFO L87 Difference]: Start difference. First operand 950 states and 1235 transitions. Second operand has 19 states, 17 states have (on average 3.823529411764706) internal successors, (65), 19 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:47:41,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:41,029 INFO L93 Difference]: Finished difference Result 1507 states and 1951 transitions. [2024-11-23 22:47:41,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:47:41,030 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.823529411764706) internal successors, (65), 19 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 152 [2024-11-23 22:47:41,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:41,034 INFO L225 Difference]: With dead ends: 1507 [2024-11-23 22:47:41,035 INFO L226 Difference]: Without dead ends: 1048 [2024-11-23 22:47:41,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2024-11-23 22:47:41,036 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 259 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:41,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1233 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-23 22:47:41,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-23 22:47:41,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 936. [2024-11-23 22:47:41,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 847 states have (on average 1.271546635182999) internal successors, (1077), 847 states have internal predecessors, (1077), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 22:47:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1221 transitions. [2024-11-23 22:47:41,250 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1221 transitions. Word has length 152 [2024-11-23 22:47:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:41,251 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1221 transitions. [2024-11-23 22:47:41,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.823529411764706) internal successors, (65), 19 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:47:41,251 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1221 transitions. [2024-11-23 22:47:41,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-23 22:47:41,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:41,252 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:41,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-23 22:47:41,252 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:47:41,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:41,252 INFO L85 PathProgramCache]: Analyzing trace with hash -254320647, now seen corresponding path program 1 times [2024-11-23 22:47:41,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:41,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136108026] [2024-11-23 22:47:41,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:41,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:47:47,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:47:47,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136108026] [2024-11-23 22:47:47,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136108026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:47:47,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:47:47,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-23 22:47:47,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656669607] [2024-11-23 22:47:47,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:47:47,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 22:47:47,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:47:47,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 22:47:47,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:47:47,905 INFO L87 Difference]: Start difference. First operand 936 states and 1221 transitions. Second operand has 20 states, 18 states have (on average 3.611111111111111) internal successors, (65), 20 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:47:56,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:56,983 INFO L93 Difference]: Finished difference Result 1479 states and 1921 transitions. [2024-11-23 22:47:56,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:47:56,983 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.611111111111111) internal successors, (65), 20 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 152 [2024-11-23 22:47:56,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:56,987 INFO L225 Difference]: With dead ends: 1479 [2024-11-23 22:47:56,987 INFO L226 Difference]: Without dead ends: 1034 [2024-11-23 22:47:56,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2024-11-23 22:47:56,988 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 358 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:56,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1337 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-23 22:47:56,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2024-11-23 22:47:57,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 920. [2024-11-23 22:47:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 831 states have (on average 1.2743682310469313) internal successors, (1059), 831 states have internal predecessors, (1059), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 22:47:57,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1203 transitions. [2024-11-23 22:47:57,188 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1203 transitions. Word has length 152 [2024-11-23 22:47:57,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:57,188 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1203 transitions. [2024-11-23 22:47:57,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.611111111111111) internal successors, (65), 20 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-23 22:47:57,188 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1203 transitions. [2024-11-23 22:47:57,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-23 22:47:57,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:57,189 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:57,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 22:47:57,189 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:47:57,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1446665465, now seen corresponding path program 1 times [2024-11-23 22:47:57,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:47:57,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018382900] [2024-11-23 22:47:57,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:57,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:47:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:48:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 22:48:02,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:48:02,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018382900] [2024-11-23 22:48:02,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018382900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:48:02,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338158371] [2024-11-23 22:48:02,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:48:02,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:48:02,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:48:02,804 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:48:02,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 22:48:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:48:03,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-23 22:48:03,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:48:03,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:48:05,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:06,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:07,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:08,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:08,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:09,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:10,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:11,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:12,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:13,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:48:13,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:48:13,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:48:13,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:48:13,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:48:13,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:48:13,994 INFO L349 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2024-11-23 22:48:13,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 50 [2024-11-23 22:48:14,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:48:14,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-23 22:48:14,618 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 15 proven. 173 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-23 22:48:14,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:49:10,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338158371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:49:10,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:49:10,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 29 [2024-11-23 22:49:10,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462843264] [2024-11-23 22:49:10,458 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:49:10,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-23 22:49:10,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:49:10,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-23 22:49:10,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=960, Unknown=6, NotChecked=0, Total=1122 [2024-11-23 22:49:10,461 INFO L87 Difference]: Start difference. First operand 920 states and 1203 transitions. Second operand has 29 states, 27 states have (on average 4.703703703703703) internal successors, (127), 29 states have internal predecessors, (127), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-23 22:49:21,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:49:21,471 INFO L93 Difference]: Finished difference Result 2243 states and 2885 transitions. [2024-11-23 22:49:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 22:49:21,471 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 4.703703703703703) internal successors, (127), 29 states have internal predecessors, (127), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) Word has length 152 [2024-11-23 22:49:21,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:49:21,477 INFO L225 Difference]: With dead ends: 2243 [2024-11-23 22:49:21,477 INFO L226 Difference]: Without dead ends: 1436 [2024-11-23 22:49:21,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 62.6s TimeCoverageRelationStatistics Valid=578, Invalid=2496, Unknown=6, NotChecked=0, Total=3080 [2024-11-23 22:49:21,480 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 691 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:49:21,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1289 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-23 22:49:21,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-11-23 22:49:21,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1034. [2024-11-23 22:49:21,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 945 states have (on average 1.258201058201058) internal successors, (1189), 945 states have internal predecessors, (1189), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 22:49:21,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1333 transitions. [2024-11-23 22:49:21,786 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1333 transitions. Word has length 152 [2024-11-23 22:49:21,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:49:21,787 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1333 transitions. [2024-11-23 22:49:21,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 4.703703703703703) internal successors, (127), 29 states have internal predecessors, (127), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-23 22:49:21,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1333 transitions. [2024-11-23 22:49:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 22:49:21,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:49:21,789 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:49:21,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 22:49:21,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-23 22:49:21,989 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:49:21,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:49:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1018027560, now seen corresponding path program 1 times [2024-11-23 22:49:21,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:49:21,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528001707] [2024-11-23 22:49:21,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:49:21,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:49:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:49:32,983 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:49:32,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:49:32,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528001707] [2024-11-23 22:49:32,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528001707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:49:32,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:49:32,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:49:32,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085040045] [2024-11-23 22:49:32,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:49:32,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:49:32,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:49:32,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:49:32,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:49:32,985 INFO L87 Difference]: Start difference. First operand 1034 states and 1333 transitions. Second operand has 15 states, 12 states have (on average 5.5) internal successors, (66), 15 states have internal predecessors, (66), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:49:38,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:49:38,440 INFO L93 Difference]: Finished difference Result 1544 states and 1989 transitions. [2024-11-23 22:49:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:49:38,441 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.5) internal successors, (66), 15 states have internal predecessors, (66), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 153 [2024-11-23 22:49:38,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:49:38,443 INFO L225 Difference]: With dead ends: 1544 [2024-11-23 22:49:38,443 INFO L226 Difference]: Without dead ends: 1073 [2024-11-23 22:49:38,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:49:38,444 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 572 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:49:38,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 658 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 22:49:38,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-11-23 22:49:38,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1034. [2024-11-23 22:49:38,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 945 states have (on average 1.253968253968254) internal successors, (1185), 945 states have internal predecessors, (1185), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 22:49:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1329 transitions. [2024-11-23 22:49:38,715 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1329 transitions. Word has length 153 [2024-11-23 22:49:38,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:49:38,716 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1329 transitions. [2024-11-23 22:49:38,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.5) internal successors, (66), 15 states have internal predecessors, (66), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:49:38,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1329 transitions. [2024-11-23 22:49:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 22:49:38,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:49:38,717 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:49:38,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-23 22:49:38,718 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:49:38,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:49:38,718 INFO L85 PathProgramCache]: Analyzing trace with hash -67449942, now seen corresponding path program 1 times [2024-11-23 22:49:38,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:49:38,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588686302] [2024-11-23 22:49:38,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:49:38,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:49:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:49:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:49:41,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:49:41,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588686302] [2024-11-23 22:49:41,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588686302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:49:41,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:49:41,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:49:41,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606963932] [2024-11-23 22:49:41,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:49:41,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:49:41,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:49:41,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:49:41,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:49:41,059 INFO L87 Difference]: Start difference. First operand 1034 states and 1329 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:49:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:49:46,043 INFO L93 Difference]: Finished difference Result 1599 states and 2053 transitions. [2024-11-23 22:49:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:49:46,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-11-23 22:49:46,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:49:46,047 INFO L225 Difference]: With dead ends: 1599 [2024-11-23 22:49:46,047 INFO L226 Difference]: Without dead ends: 1128 [2024-11-23 22:49:46,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:49:46,049 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 382 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:49:46,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 989 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-23 22:49:46,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-11-23 22:49:46,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1042. [2024-11-23 22:49:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 953 states have (on average 1.2581322140608604) internal successors, (1199), 953 states have internal predecessors, (1199), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 22:49:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1343 transitions. [2024-11-23 22:49:46,296 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1343 transitions. Word has length 153 [2024-11-23 22:49:46,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:49:46,297 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1343 transitions. [2024-11-23 22:49:46,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:49:46,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1343 transitions. [2024-11-23 22:49:46,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 22:49:46,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:49:46,298 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:49:46,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-23 22:49:46,298 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:49:46,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:49:46,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1515249234, now seen corresponding path program 1 times [2024-11-23 22:49:46,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:49:46,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090463857] [2024-11-23 22:49:46,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:49:46,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:49:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:49:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:49:47,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:49:47,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090463857] [2024-11-23 22:49:47,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090463857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:49:47,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:49:47,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:49:47,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025114748] [2024-11-23 22:49:47,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:49:47,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:49:47,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:49:47,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:49:47,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:49:47,335 INFO L87 Difference]: Start difference. First operand 1042 states and 1343 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:49:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:49:49,922 INFO L93 Difference]: Finished difference Result 1580 states and 2033 transitions. [2024-11-23 22:49:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:49:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-11-23 22:49:49,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:49:49,928 INFO L225 Difference]: With dead ends: 1580 [2024-11-23 22:49:49,928 INFO L226 Difference]: Without dead ends: 1101 [2024-11-23 22:49:49,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:49:49,929 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 131 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:49:49,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 717 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 22:49:49,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-11-23 22:49:50,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1034. [2024-11-23 22:49:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 945 states have (on average 1.2518518518518518) internal successors, (1183), 945 states have internal predecessors, (1183), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 22:49:50,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1327 transitions. [2024-11-23 22:49:50,165 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1327 transitions. Word has length 153 [2024-11-23 22:49:50,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:49:50,165 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1327 transitions. [2024-11-23 22:49:50,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:49:50,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1327 transitions. [2024-11-23 22:49:50,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-23 22:49:50,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:49:50,167 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:49:50,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-23 22:49:50,168 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:49:50,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:49:50,168 INFO L85 PathProgramCache]: Analyzing trace with hash -563893216, now seen corresponding path program 1 times [2024-11-23 22:49:50,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:49:50,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382876091] [2024-11-23 22:49:50,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:49:50,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:49:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:49:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:49:53,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:49:53,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382876091] [2024-11-23 22:49:53,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382876091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:49:53,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:49:53,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 22:49:53,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086408539] [2024-11-23 22:49:53,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:49:53,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 22:49:53,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:49:53,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 22:49:53,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:49:53,629 INFO L87 Difference]: Start difference. First operand 1034 states and 1327 transitions. Second operand has 17 states, 16 states have (on average 4.1875) internal successors, (67), 17 states have internal predecessors, (67), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:49:59,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:49:59,790 INFO L93 Difference]: Finished difference Result 1570 states and 2009 transitions. [2024-11-23 22:49:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:49:59,791 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.1875) internal successors, (67), 17 states have internal predecessors, (67), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 154 [2024-11-23 22:49:59,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:49:59,798 INFO L225 Difference]: With dead ends: 1570 [2024-11-23 22:49:59,798 INFO L226 Difference]: Without dead ends: 1099 [2024-11-23 22:49:59,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2024-11-23 22:49:59,800 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 237 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:49:59,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1048 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 22:49:59,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-11-23 22:50:00,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1028. [2024-11-23 22:50:00,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 939 states have (on average 1.2492012779552715) internal successors, (1173), 939 states have internal predecessors, (1173), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 22:50:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1317 transitions. [2024-11-23 22:50:00,062 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1317 transitions. Word has length 154 [2024-11-23 22:50:00,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:50:00,062 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1317 transitions. [2024-11-23 22:50:00,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.1875) internal successors, (67), 17 states have internal predecessors, (67), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:50:00,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1317 transitions. [2024-11-23 22:50:00,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-23 22:50:00,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:50:00,063 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:50:00,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-23 22:50:00,063 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:50:00,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:50:00,064 INFO L85 PathProgramCache]: Analyzing trace with hash 977273159, now seen corresponding path program 1 times [2024-11-23 22:50:00,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:50:00,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165192173] [2024-11-23 22:50:00,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:50:00,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:50:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:50:04,426 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 84 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-11-23 22:50:04,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:50:04,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165192173] [2024-11-23 22:50:04,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165192173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:50:04,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377691344] [2024-11-23 22:50:04,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:50:04,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:50:04,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:50:04,428 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:50:04,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 22:50:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:50:05,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-23 22:50:05,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:50:07,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:50:09,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-23 22:50:12,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-23 22:50:14,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-23 22:50:15,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-23 22:50:16,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-23 22:50:18,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-23 22:50:20,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2024-11-23 22:50:22,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2024-11-23 22:50:24,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2024-11-23 22:50:25,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2024-11-23 22:50:25,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:50:25,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:50:25,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:50:25,563 INFO L349 Elim1Store]: treesize reduction 120, result has 26.4 percent of original size [2024-11-23 22:50:25,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 69 treesize of output 99 [2024-11-23 22:50:27,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 30 [2024-11-23 22:50:27,191 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 299 proven. 224 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-23 22:50:27,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:51:04,384 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4989 Int) (~WrapperStruct00_var_1_3_Pointer~0.base Int) (~WrapperStruct00_var_1_3_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int)) (let ((.cse0 (let ((.cse1 (store |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_4989)))) (store .cse1 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (mod (select (select .cse1 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2) (* (- 1) (select (select .cse1 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select .cse1 ~WrapperStruct00_var_1_3_Pointer~0.base) ~WrapperStruct00_var_1_3_Pointer~0.offset))))))) (< (mod (select (select .cse0 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset) 4294967296) (+ (mod (+ (select (select .cse0 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset) (* 4294967295 (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset))) 4294967296) 1)))) is different from false [2024-11-23 22:51:08,626 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4989 Int) (~WrapperStruct00_var_1_3_Pointer~0.base Int) (v_ArrVal_4988 Int) (~WrapperStruct00_var_1_3_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int)) (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base) c_~WrapperStruct00_var_1_6_Pointer~0.offset v_ArrVal_4988)))) (store .cse2 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_4989))))) (store .cse1 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (select (select .cse1 ~WrapperStruct00_var_1_3_Pointer~0.base) ~WrapperStruct00_var_1_3_Pointer~0.offset) (* (select (select .cse1 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) (- 1)) (* (mod (select (select .cse1 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2))))))) (< (mod (select (select .cse0 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset) 4294967296) (+ (mod (+ (select (select .cse0 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset) (* 4294967295 (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset))) 4294967296) 1)))) is different from false [2024-11-23 22:51:08,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377691344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:51:08,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:51:08,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 23] total 37 [2024-11-23 22:51:08,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096045503] [2024-11-23 22:51:08,713 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:51:08,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-23 22:51:08,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:08,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-23 22:51:08,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1344, Unknown=9, NotChecked=154, Total=1722 [2024-11-23 22:51:08,715 INFO L87 Difference]: Start difference. First operand 1028 states and 1317 transitions. Second operand has 37 states, 29 states have (on average 5.241379310344827) internal successors, (152), 36 states have internal predecessors, (152), 19 states have call successors, (36), 7 states have call predecessors, (36), 11 states have return successors, (36), 12 states have call predecessors, (36), 19 states have call successors, (36) [2024-11-23 22:51:17,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:17,433 INFO L93 Difference]: Finished difference Result 1361 states and 1714 transitions. [2024-11-23 22:51:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 22:51:17,434 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 29 states have (on average 5.241379310344827) internal successors, (152), 36 states have internal predecessors, (152), 19 states have call successors, (36), 7 states have call predecessors, (36), 11 states have return successors, (36), 12 states have call predecessors, (36), 19 states have call successors, (36) Word has length 154 [2024-11-23 22:51:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:17,438 INFO L225 Difference]: With dead ends: 1361 [2024-11-23 22:51:17,438 INFO L226 Difference]: Without dead ends: 410 [2024-11-23 22:51:17,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 48.9s TimeCoverageRelationStatistics Valid=399, Invalid=2050, Unknown=9, NotChecked=194, Total=2652 [2024-11-23 22:51:17,441 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 191 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:17,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1068 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-23 22:51:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-23 22:51:17,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 395. [2024-11-23 22:51:17,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 342 states have (on average 1.1812865497076024) internal successors, (404), 343 states have internal predecessors, (404), 36 states have call successors, (36), 16 states have call predecessors, (36), 16 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 22:51:17,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 476 transitions. [2024-11-23 22:51:17,599 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 476 transitions. Word has length 154 [2024-11-23 22:51:17,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:17,599 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 476 transitions. [2024-11-23 22:51:17,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 29 states have (on average 5.241379310344827) internal successors, (152), 36 states have internal predecessors, (152), 19 states have call successors, (36), 7 states have call predecessors, (36), 11 states have return successors, (36), 12 states have call predecessors, (36), 19 states have call successors, (36) [2024-11-23 22:51:17,600 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 476 transitions. [2024-11-23 22:51:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-23 22:51:17,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:17,600 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:17,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 22:51:17,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-23 22:51:17,801 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:17,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:17,801 INFO L85 PathProgramCache]: Analyzing trace with hash -400842257, now seen corresponding path program 1 times [2024-11-23 22:51:17,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:17,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431813065] [2024-11-23 22:51:17,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:17,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:21,813 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 22:51:21,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:21,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431813065] [2024-11-23 22:51:21,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431813065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:51:21,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559814530] [2024-11-23 22:51:21,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:21,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:51:21,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:51:21,815 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:51:21,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 22:51:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:22,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-23 22:51:22,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:51:24,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:51:28,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-23 22:51:29,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-23 22:51:31,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-23 22:51:32,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-23 22:51:34,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-23 22:51:36,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-23 22:51:38,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-23 22:51:41,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-23 22:51:43,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-23 22:51:43,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-23 22:51:44,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:51:44,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:51:44,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-23 22:51:44,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:51:44,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:51:44,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:51:44,847 INFO L349 Elim1Store]: treesize reduction 45, result has 19.6 percent of original size [2024-11-23 22:51:44,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 63 [2024-11-23 22:51:45,442 INFO L349 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2024-11-23 22:51:45,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 44 [2024-11-23 22:51:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 177 proven. 194 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-23 22:51:46,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:51:53,719 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_11_Pointer~0.offset Int) (~WrapperStruct00_var_1_3_Pointer~0.offset Int) (~WrapperStruct00_var_1_11_Pointer~0.base Int)) (let ((.cse0 (let ((.cse2 (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (mod (select (select |c_#memory_int| c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2) (* (- 1) (select (select |c_#memory_int| c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select |c_#memory_int| c_~WrapperStruct00_var_1_3_Pointer~0.base) ~WrapperStruct00_var_1_3_Pointer~0.offset)))))) (store .cse2 c_~WrapperStruct00_var_1_8_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select (select .cse2 ~WrapperStruct00_var_1_11_Pointer~0.base) ~WrapperStruct00_var_1_11_Pointer~0.offset)))))) (let ((.cse1 (mod (select (select .cse0 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536))) (or (not (= (mod (select (select .cse0 c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset) 65536) .cse1)) (not (= (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) .cse1)))))) is different from false [2024-11-23 22:54:00,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559814530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:00,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:54:00,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21] total 36 [2024-11-23 22:54:00,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982332825] [2024-11-23 22:54:00,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:54:00,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-23 22:54:00,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:00,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-23 22:54:00,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=1978, Unknown=18, NotChecked=94, Total=2450 [2024-11-23 22:54:00,206 INFO L87 Difference]: Start difference. First operand 395 states and 476 transitions. Second operand has 36 states, 32 states have (on average 4.34375) internal successors, (139), 34 states have internal predecessors, (139), 11 states have call successors, (36), 5 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-23 22:54:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:10,850 INFO L93 Difference]: Finished difference Result 730 states and 877 transitions. [2024-11-23 22:54:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-23 22:54:10,851 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 32 states have (on average 4.34375) internal successors, (139), 34 states have internal predecessors, (139), 11 states have call successors, (36), 5 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) Word has length 155 [2024-11-23 22:54:10,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:10,855 INFO L225 Difference]: With dead ends: 730 [2024-11-23 22:54:10,855 INFO L226 Difference]: Without dead ends: 421 [2024-11-23 22:54:10,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 994 ImplicationChecksByTransitivity, 140.0s TimeCoverageRelationStatistics Valid=588, Invalid=2704, Unknown=18, NotChecked=112, Total=3422 [2024-11-23 22:54:10,857 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 123 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:10,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 799 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-23 22:54:10,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-23 22:54:11,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 381. [2024-11-23 22:54:11,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 329 states have (on average 1.1884498480243162) internal successors, (391), 330 states have internal predecessors, (391), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-23 22:54:11,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 459 transitions. [2024-11-23 22:54:11,025 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 459 transitions. Word has length 155 [2024-11-23 22:54:11,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:11,025 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 459 transitions. [2024-11-23 22:54:11,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 32 states have (on average 4.34375) internal successors, (139), 34 states have internal predecessors, (139), 11 states have call successors, (36), 5 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-23 22:54:11,025 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 459 transitions. [2024-11-23 22:54:11,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-23 22:54:11,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:11,026 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:11,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 22:54:11,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:11,227 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:11,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:11,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1848641549, now seen corresponding path program 1 times [2024-11-23 22:54:11,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:11,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650501959] [2024-11-23 22:54:11,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:11,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:17,838 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 22:54:17,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:17,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650501959] [2024-11-23 22:54:17,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650501959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:17,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761073898] [2024-11-23 22:54:17,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:17,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:17,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:17,840 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:17,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1208633-d751-4705-944b-a9243a1e988a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 22:54:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:19,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-11-23 22:54:19,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:20,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:54:23,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 22:54:25,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:54:27,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:54:29,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:54:30,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:54:32,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:54:33,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:54:35,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:54:37,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:54:59,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:54:59,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:54:59,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:55:08,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:08,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:08,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:55:09,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:09,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:09,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-23 22:55:17,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:17,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:17,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:17,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:17,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:17,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47