./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-34.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_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/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_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/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_8c03184b-c137-4014-a2c8-f4400227f12c/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 a2e67766c6fd196971faf344e8fff85e5c895ea0afd7f2774008fd81029a9807 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:55:29,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:55:29,878 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:55:29,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:55:29,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:55:29,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:55:29,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:55:29,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:55:29,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:55:29,905 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:55:29,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:55:29,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:55:29,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:55:29,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:55:29,906 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:55:29,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:55:29,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:55:29,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:55:29,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:55:29,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:55:29,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:55:29,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:55:29,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:55:29,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:55:29,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:55:29,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:55:29,911 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:55:29,911 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:55:29,911 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:55:29,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:55:29,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:55:29,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:55:29,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:55:29,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:55:29,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:55:29,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:55:29,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:55:29,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:55:29,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:55:29,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:55:29,912 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:55:29,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:55:29,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:55:29,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:55:29,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:55:29,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:55:29,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:55:29,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:55:29,913 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_8c03184b-c137-4014-a2c8-f4400227f12c/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 -> a2e67766c6fd196971faf344e8fff85e5c895ea0afd7f2774008fd81029a9807 [2024-11-24 00:55:30,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:55:30,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:55:30,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:55:30,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:55:30,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:55:30,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-34.i [2024-11-24 00:55:33,483 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/data/5717abceb/a5b46f5e11d74e0ebf24b2d5979f7b0b/FLAGd5509fb8b [2024-11-24 00:55:33,833 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:55:33,837 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-34.i [2024-11-24 00:55:33,856 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/data/5717abceb/a5b46f5e11d74e0ebf24b2d5979f7b0b/FLAGd5509fb8b [2024-11-24 00:55:34,057 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/data/5717abceb/a5b46f5e11d74e0ebf24b2d5979f7b0b [2024-11-24 00:55:34,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:55:34,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:55:34,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:55:34,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:55:34,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:55:34,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2bef71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34, skipping insertion in model container [2024-11-24 00:55:34,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:55:34,287 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_8c03184b-c137-4014-a2c8-f4400227f12c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-34.i[919,932] [2024-11-24 00:55:34,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:55:34,388 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:55:34,397 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_8c03184b-c137-4014-a2c8-f4400227f12c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-34.i[919,932] [2024-11-24 00:55:34,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:55:34,462 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:55:34,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34 WrapperNode [2024-11-24 00:55:34,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:55:34,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:55:34,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:55:34,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:55:34,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,533 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 265 [2024-11-24 00:55:34,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:55:34,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:55:34,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:55:34,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:55:34,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,550 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,573 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:55:34,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,584 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,586 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:55:34,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:55:34,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:55:34,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:55:34,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (1/1) ... [2024-11-24 00:55:34,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:55:34,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:55:34,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:55:34,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:55:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:55:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:55:34,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:55:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:55:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:55:34,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:55:34,791 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:55:34,798 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:55:35,562 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-24 00:55:35,562 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:55:35,577 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:55:35,578 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:55:35,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:55:35 BoogieIcfgContainer [2024-11-24 00:55:35,578 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:55:35,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:55:35,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:55:35,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:55:35,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:55:34" (1/3) ... [2024-11-24 00:55:35,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd22751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:55:35, skipping insertion in model container [2024-11-24 00:55:35,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:55:34" (2/3) ... [2024-11-24 00:55:35,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd22751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:55:35, skipping insertion in model container [2024-11-24 00:55:35,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:55:35" (3/3) ... [2024-11-24 00:55:35,589 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-34.i [2024-11-24 00:55:35,605 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:55:35,607 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-34.i that has 2 procedures, 112 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:55:35,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:55:35,688 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;@29967308, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:55:35,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:55:35,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 77 states have internal predecessors, (112), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-24 00:55:35,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-24 00:55:35,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:55:35,712 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:55:35,713 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:55:35,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:55:35,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1735506885, now seen corresponding path program 1 times [2024-11-24 00:55:35,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:55:35,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257385058] [2024-11-24 00:55:35,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:55:35,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:55:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:55:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-24 00:55:36,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:55:36,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257385058] [2024-11-24 00:55:36,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257385058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:55:36,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135205464] [2024-11-24 00:55:36,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:55:36,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:55:36,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:55:36,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:55:36,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:55:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:55:36,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:55:36,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:55:36,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-24 00:55:36,583 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:55:36,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135205464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:55:36,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:55:36,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:55:36,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735111616] [2024-11-24 00:55:36,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:55:36,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:55:36,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:55:36,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:55:36,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:55:36,665 INFO L87 Difference]: Start difference. First operand has 112 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 77 states have internal predecessors, (112), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:55:36,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:55:36,721 INFO L93 Difference]: Finished difference Result 217 states and 383 transitions. [2024-11-24 00:55:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:55:36,723 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 212 [2024-11-24 00:55:36,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:55:36,733 INFO L225 Difference]: With dead ends: 217 [2024-11-24 00:55:36,733 INFO L226 Difference]: Without dead ends: 108 [2024-11-24 00:55:36,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:55:36,746 INFO L435 NwaCegarLoop]: 171 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, 171 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:55:36,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:55:36,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-24 00:55:36,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-24 00:55:36,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 73 states have (on average 1.4383561643835616) internal successors, (105), 73 states have internal predecessors, (105), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-24 00:55:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 171 transitions. [2024-11-24 00:55:36,796 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 171 transitions. Word has length 212 [2024-11-24 00:55:36,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:55:36,796 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 171 transitions. [2024-11-24 00:55:36,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:55:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 171 transitions. [2024-11-24 00:55:36,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-24 00:55:36,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:55:36,804 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:55:36,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:55:37,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:55:37,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:55:37,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:55:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash -469398987, now seen corresponding path program 1 times [2024-11-24 00:55:37,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:55:37,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835480278] [2024-11-24 00:55:37,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:55:37,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:55:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:55:37,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:55:37,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:55:37,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835480278] [2024-11-24 00:55:37,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835480278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:55:37,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:55:37,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:55:37,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56844346] [2024-11-24 00:55:37,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:55:37,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:55:37,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:55:37,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:55:37,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:55:37,910 INFO L87 Difference]: Start difference. First operand 108 states and 171 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:55:38,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:55:38,264 INFO L93 Difference]: Finished difference Result 358 states and 571 transitions. [2024-11-24 00:55:38,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:55:38,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 212 [2024-11-24 00:55:38,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:55:38,273 INFO L225 Difference]: With dead ends: 358 [2024-11-24 00:55:38,273 INFO L226 Difference]: Without dead ends: 253 [2024-11-24 00:55:38,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:55:38,275 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 173 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:55:38,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 550 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:55:38,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-24 00:55:38,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 221. [2024-11-24 00:55:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 152 states have (on average 1.4671052631578947) internal successors, (223), 152 states have internal predecessors, (223), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-24 00:55:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 355 transitions. [2024-11-24 00:55:38,329 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 355 transitions. Word has length 212 [2024-11-24 00:55:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:55:38,330 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 355 transitions. [2024-11-24 00:55:38,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:55:38,330 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 355 transitions. [2024-11-24 00:55:38,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-24 00:55:38,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:55:38,334 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:55:38,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:55:38,334 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:55:38,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:55:38,335 INFO L85 PathProgramCache]: Analyzing trace with hash 481586898, now seen corresponding path program 1 times [2024-11-24 00:55:38,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:55:38,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484155192] [2024-11-24 00:55:38,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:55:38,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:55:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:55:38,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:55:38,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:55:38,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484155192] [2024-11-24 00:55:38,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484155192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:55:38,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:55:38,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:55:38,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571602092] [2024-11-24 00:55:38,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:55:38,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:55:38,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:55:38,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:55:38,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:55:38,906 INFO L87 Difference]: Start difference. First operand 221 states and 355 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:55:39,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:55:39,477 INFO L93 Difference]: Finished difference Result 648 states and 1042 transitions. [2024-11-24 00:55:39,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:55:39,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 213 [2024-11-24 00:55:39,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:55:39,482 INFO L225 Difference]: With dead ends: 648 [2024-11-24 00:55:39,482 INFO L226 Difference]: Without dead ends: 430 [2024-11-24 00:55:39,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:55:39,485 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 197 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:55:39,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 614 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:55:39,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-24 00:55:39,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 225. [2024-11-24 00:55:39,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 156 states have (on average 1.455128205128205) internal successors, (227), 156 states have internal predecessors, (227), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-24 00:55:39,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 359 transitions. [2024-11-24 00:55:39,555 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 359 transitions. Word has length 213 [2024-11-24 00:55:39,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:55:39,556 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 359 transitions. [2024-11-24 00:55:39,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:55:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 359 transitions. [2024-11-24 00:55:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 00:55:39,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:55:39,560 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:55:39,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:55:39,560 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:55:39,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:55:39,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2133980318, now seen corresponding path program 1 times [2024-11-24 00:55:39,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:55:39,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987097915] [2024-11-24 00:55:39,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:55:39,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:55:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:55:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:55:52,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:55:52,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987097915] [2024-11-24 00:55:52,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987097915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:55:52,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:55:52,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 00:55:52,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946672485] [2024-11-24 00:55:52,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:55:52,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:55:52,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:55:52,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:55:52,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:55:52,202 INFO L87 Difference]: Start difference. First operand 225 states and 359 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:55:56,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:55:56,175 INFO L93 Difference]: Finished difference Result 719 states and 1123 transitions. [2024-11-24 00:55:56,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:55:56,176 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 214 [2024-11-24 00:55:56,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:55:56,180 INFO L225 Difference]: With dead ends: 719 [2024-11-24 00:55:56,181 INFO L226 Difference]: Without dead ends: 497 [2024-11-24 00:55:56,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:55:56,183 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 641 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:55:56,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1297 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:55:56,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-24 00:55:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 335. [2024-11-24 00:55:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 232 states have (on average 1.4525862068965518) internal successors, (337), 232 states have internal predecessors, (337), 99 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:55:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 535 transitions. [2024-11-24 00:55:56,267 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 535 transitions. Word has length 214 [2024-11-24 00:55:56,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:55:56,268 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 535 transitions. [2024-11-24 00:55:56,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:55:56,269 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 535 transitions. [2024-11-24 00:55:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 00:55:56,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:55:56,272 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:55:56,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:55:56,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:55:56,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:55:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash -385979616, now seen corresponding path program 1 times [2024-11-24 00:55:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:55:56,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667367400] [2024-11-24 00:55:56,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:55:56,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:55:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:55:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:55:59,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:55:59,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667367400] [2024-11-24 00:55:59,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667367400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:55:59,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:55:59,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:55:59,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198472853] [2024-11-24 00:55:59,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:55:59,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:55:59,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:55:59,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:55:59,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:55:59,852 INFO L87 Difference]: Start difference. First operand 335 states and 535 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:01,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:01,648 INFO L93 Difference]: Finished difference Result 776 states and 1219 transitions. [2024-11-24 00:56:01,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:56:01,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-24 00:56:01,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:01,656 INFO L225 Difference]: With dead ends: 776 [2024-11-24 00:56:01,657 INFO L226 Difference]: Without dead ends: 554 [2024-11-24 00:56:01,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:56:01,659 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 470 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:01,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 730 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 00:56:01,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-24 00:56:01,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 396. [2024-11-24 00:56:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 293 states have (on average 1.4880546075085324) internal successors, (436), 293 states have internal predecessors, (436), 99 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:56:01,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 634 transitions. [2024-11-24 00:56:01,710 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 634 transitions. Word has length 214 [2024-11-24 00:56:01,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:01,711 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 634 transitions. [2024-11-24 00:56:01,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:01,711 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 634 transitions. [2024-11-24 00:56:01,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 00:56:01,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:01,714 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:56:01,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:56:01,715 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:01,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:01,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1480928608, now seen corresponding path program 1 times [2024-11-24 00:56:01,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:01,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243796085] [2024-11-24 00:56:01,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:01,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:56:05,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:05,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243796085] [2024-11-24 00:56:05,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243796085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:05,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:05,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:56:05,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105620186] [2024-11-24 00:56:05,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:05,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:56:05,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:05,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:56:05,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:56:05,699 INFO L87 Difference]: Start difference. First operand 396 states and 634 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:07,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:07,294 INFO L93 Difference]: Finished difference Result 888 states and 1392 transitions. [2024-11-24 00:56:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:56:07,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-24 00:56:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:07,302 INFO L225 Difference]: With dead ends: 888 [2024-11-24 00:56:07,303 INFO L226 Difference]: Without dead ends: 603 [2024-11-24 00:56:07,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:56:07,305 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 412 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:07,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 732 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:56:07,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-24 00:56:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 527. [2024-11-24 00:56:07,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 424 states have (on average 1.4976415094339623) internal successors, (635), 424 states have internal predecessors, (635), 99 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:56:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 833 transitions. [2024-11-24 00:56:07,385 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 833 transitions. Word has length 214 [2024-11-24 00:56:07,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:07,386 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 833 transitions. [2024-11-24 00:56:07,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:07,386 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 833 transitions. [2024-11-24 00:56:07,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 00:56:07,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:07,389 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:56:07,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:56:07,390 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:07,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:07,390 INFO L85 PathProgramCache]: Analyzing trace with hash 863847247, now seen corresponding path program 1 times [2024-11-24 00:56:07,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:07,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052933465] [2024-11-24 00:56:07,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:07,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:09,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:56:09,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:09,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052933465] [2024-11-24 00:56:09,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052933465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:09,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:09,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:56:09,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290946604] [2024-11-24 00:56:09,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:09,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:56:09,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:09,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:56:09,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:56:09,460 INFO L87 Difference]: Start difference. First operand 527 states and 833 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:09,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:09,973 INFO L93 Difference]: Finished difference Result 891 states and 1389 transitions. [2024-11-24 00:56:09,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:56:09,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-24 00:56:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:09,977 INFO L225 Difference]: With dead ends: 891 [2024-11-24 00:56:09,977 INFO L226 Difference]: Without dead ends: 623 [2024-11-24 00:56:09,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:56:09,979 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 217 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:09,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 614 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:56:09,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-24 00:56:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 529. [2024-11-24 00:56:10,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 426 states have (on average 1.4859154929577465) internal successors, (633), 426 states have internal predecessors, (633), 99 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:56:10,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 831 transitions. [2024-11-24 00:56:10,035 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 831 transitions. Word has length 214 [2024-11-24 00:56:10,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:10,035 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 831 transitions. [2024-11-24 00:56:10,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:10,036 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 831 transitions. [2024-11-24 00:56:10,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 00:56:10,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:10,039 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:56:10,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:56:10,039 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:10,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:10,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1112911964, now seen corresponding path program 1 times [2024-11-24 00:56:10,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:10,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47509031] [2024-11-24 00:56:10,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:10,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:56:10,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:10,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47509031] [2024-11-24 00:56:10,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47509031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:10,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:10,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:56:10,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284342739] [2024-11-24 00:56:10,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:10,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:56:10,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:10,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:56:10,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:56:10,596 INFO L87 Difference]: Start difference. First operand 529 states and 831 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:10,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:10,991 INFO L93 Difference]: Finished difference Result 807 states and 1268 transitions. [2024-11-24 00:56:10,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:56:10,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-24 00:56:10,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:10,996 INFO L225 Difference]: With dead ends: 807 [2024-11-24 00:56:10,996 INFO L226 Difference]: Without dead ends: 517 [2024-11-24 00:56:10,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:56:10,998 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 106 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:10,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 439 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:56:10,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-24 00:56:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 489. [2024-11-24 00:56:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 386 states have (on average 1.4689119170984455) internal successors, (567), 386 states have internal predecessors, (567), 99 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:56:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 765 transitions. [2024-11-24 00:56:11,054 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 765 transitions. Word has length 214 [2024-11-24 00:56:11,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:11,055 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 765 transitions. [2024-11-24 00:56:11,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 765 transitions. [2024-11-24 00:56:11,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-24 00:56:11,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:11,057 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:56:11,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:56:11,058 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:11,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:11,058 INFO L85 PathProgramCache]: Analyzing trace with hash 998334695, now seen corresponding path program 1 times [2024-11-24 00:56:11,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:11,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923119722] [2024-11-24 00:56:11,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:11,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:56:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:14,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923119722] [2024-11-24 00:56:14,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923119722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:14,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:14,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:56:14,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627416132] [2024-11-24 00:56:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:14,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:56:14,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:14,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:56:14,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:56:14,604 INFO L87 Difference]: Start difference. First operand 489 states and 765 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:16,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:16,554 INFO L93 Difference]: Finished difference Result 898 states and 1376 transitions. [2024-11-24 00:56:16,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:56:16,555 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 215 [2024-11-24 00:56:16,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:16,559 INFO L225 Difference]: With dead ends: 898 [2024-11-24 00:56:16,559 INFO L226 Difference]: Without dead ends: 676 [2024-11-24 00:56:16,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:56:16,561 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 296 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:16,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1010 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:56:16,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-24 00:56:16,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 505. [2024-11-24 00:56:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 400 states have (on average 1.4575) internal successors, (583), 400 states have internal predecessors, (583), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:56:16,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 781 transitions. [2024-11-24 00:56:16,629 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 781 transitions. Word has length 215 [2024-11-24 00:56:16,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:16,629 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 781 transitions. [2024-11-24 00:56:16,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:16,630 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 781 transitions. [2024-11-24 00:56:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-24 00:56:16,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:16,632 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:56:16,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:56:16,633 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:16,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:16,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1527001514, now seen corresponding path program 1 times [2024-11-24 00:56:16,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:16,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707964897] [2024-11-24 00:56:16,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:16,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:56:24,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:24,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707964897] [2024-11-24 00:56:24,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707964897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:24,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:24,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:56:24,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979500367] [2024-11-24 00:56:24,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:24,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:56:24,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:24,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:56:24,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:56:24,551 INFO L87 Difference]: Start difference. First operand 505 states and 781 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:28,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:28,355 INFO L93 Difference]: Finished difference Result 1041 states and 1571 transitions. [2024-11-24 00:56:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:56:28,356 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 215 [2024-11-24 00:56:28,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:28,360 INFO L225 Difference]: With dead ends: 1041 [2024-11-24 00:56:28,360 INFO L226 Difference]: Without dead ends: 664 [2024-11-24 00:56:28,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:56:28,363 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 395 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:28,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1183 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 00:56:28,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-24 00:56:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 542. [2024-11-24 00:56:28,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 437 states have (on average 1.4508009153318078) internal successors, (634), 437 states have internal predecessors, (634), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:56:28,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 832 transitions. [2024-11-24 00:56:28,433 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 832 transitions. Word has length 215 [2024-11-24 00:56:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:28,434 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 832 transitions. [2024-11-24 00:56:28,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 832 transitions. [2024-11-24 00:56:28,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-24 00:56:28,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:28,438 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:56:28,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:56:28,439 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:28,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:28,440 INFO L85 PathProgramCache]: Analyzing trace with hash 973292841, now seen corresponding path program 1 times [2024-11-24 00:56:28,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:28,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527178857] [2024-11-24 00:56:28,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:28,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:56:32,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:32,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527178857] [2024-11-24 00:56:32,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527178857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:32,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:32,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:56:32,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806006286] [2024-11-24 00:56:32,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:32,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:56:32,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:32,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:56:32,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:56:32,228 INFO L87 Difference]: Start difference. First operand 542 states and 832 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:34,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:34,586 INFO L93 Difference]: Finished difference Result 999 states and 1512 transitions. [2024-11-24 00:56:34,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:56:34,587 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 216 [2024-11-24 00:56:34,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:34,591 INFO L225 Difference]: With dead ends: 999 [2024-11-24 00:56:34,591 INFO L226 Difference]: Without dead ends: 761 [2024-11-24 00:56:34,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:56:34,593 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 466 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:34,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 541 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:56:34,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-24 00:56:34,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 532. [2024-11-24 00:56:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 427 states have (on average 1.4566744730679158) internal successors, (622), 427 states have internal predecessors, (622), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:56:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 820 transitions. [2024-11-24 00:56:34,662 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 820 transitions. Word has length 216 [2024-11-24 00:56:34,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:34,663 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 820 transitions. [2024-11-24 00:56:34,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:34,664 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 820 transitions. [2024-11-24 00:56:34,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-24 00:56:34,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:34,669 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:56:34,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:56:34,670 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:34,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:34,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1024529443, now seen corresponding path program 1 times [2024-11-24 00:56:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036371038] [2024-11-24 00:56:34,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:34,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:56:44,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:44,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036371038] [2024-11-24 00:56:44,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036371038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:44,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:44,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 00:56:44,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432694928] [2024-11-24 00:56:44,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:44,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:56:44,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:44,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:56:44,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:56:44,171 INFO L87 Difference]: Start difference. First operand 532 states and 820 transitions. Second operand has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:54,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:54,374 INFO L93 Difference]: Finished difference Result 972 states and 1468 transitions. [2024-11-24 00:56:54,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:56:54,376 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 216 [2024-11-24 00:56:54,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:54,381 INFO L225 Difference]: With dead ends: 972 [2024-11-24 00:56:54,381 INFO L226 Difference]: Without dead ends: 724 [2024-11-24 00:56:54,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:56:54,384 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 533 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:54,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1313 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-24 00:56:54,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-24 00:56:54,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 570. [2024-11-24 00:56:54,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 465 states have (on average 1.4451612903225806) internal successors, (672), 465 states have internal predecessors, (672), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:56:54,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 870 transitions. [2024-11-24 00:56:54,471 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 870 transitions. Word has length 216 [2024-11-24 00:56:54,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:54,472 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 870 transitions. [2024-11-24 00:56:54,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:56:54,472 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 870 transitions. [2024-11-24 00:56:54,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-24 00:56:54,475 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:54,476 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:56:54,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:56:54,476 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:54,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:54,477 INFO L85 PathProgramCache]: Analyzing trace with hash -70419549, now seen corresponding path program 1 times [2024-11-24 00:56:54,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:54,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062066444] [2024-11-24 00:56:54,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:54,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:56:59,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:59,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062066444] [2024-11-24 00:56:59,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062066444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:59,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:59,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:56:59,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12095274] [2024-11-24 00:56:59,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:59,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:56:59,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:59,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:56:59,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:56:59,423 INFO L87 Difference]: Start difference. First operand 570 states and 870 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:57:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:02,605 INFO L93 Difference]: Finished difference Result 1049 states and 1582 transitions. [2024-11-24 00:57:02,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:57:02,606 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 216 [2024-11-24 00:57:02,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:02,610 INFO L225 Difference]: With dead ends: 1049 [2024-11-24 00:57:02,610 INFO L226 Difference]: Without dead ends: 714 [2024-11-24 00:57:02,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:57:02,612 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 420 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:02,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 872 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 00:57:02,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-24 00:57:02,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 564. [2024-11-24 00:57:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 459 states have (on average 1.4400871459694988) internal successors, (661), 459 states have internal predecessors, (661), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:57:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 859 transitions. [2024-11-24 00:57:02,703 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 859 transitions. Word has length 216 [2024-11-24 00:57:02,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:02,703 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 859 transitions. [2024-11-24 00:57:02,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:57:02,704 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 859 transitions. [2024-11-24 00:57:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-24 00:57:02,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:02,706 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:02,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:57:02,706 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:02,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:02,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1704587813, now seen corresponding path program 1 times [2024-11-24 00:57:02,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:02,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698424648] [2024-11-24 00:57:02,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:57:13,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:13,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698424648] [2024-11-24 00:57:13,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698424648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:13,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:13,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 00:57:13,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508577439] [2024-11-24 00:57:13,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:13,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:57:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:13,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:57:13,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:57:13,502 INFO L87 Difference]: Start difference. First operand 564 states and 859 transitions. Second operand has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:57:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:17,601 INFO L93 Difference]: Finished difference Result 938 states and 1387 transitions. [2024-11-24 00:57:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:57:17,602 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 216 [2024-11-24 00:57:17,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:17,606 INFO L225 Difference]: With dead ends: 938 [2024-11-24 00:57:17,607 INFO L226 Difference]: Without dead ends: 700 [2024-11-24 00:57:17,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:57:17,609 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 350 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:17,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 1062 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:57:17,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-24 00:57:17,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 568. [2024-11-24 00:57:17,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 463 states have (on average 1.4362850971922245) internal successors, (665), 463 states have internal predecessors, (665), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:57:17,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 863 transitions. [2024-11-24 00:57:17,703 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 863 transitions. Word has length 216 [2024-11-24 00:57:17,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:17,704 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 863 transitions. [2024-11-24 00:57:17,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:57:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 863 transitions. [2024-11-24 00:57:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-24 00:57:17,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:17,706 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:17,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:57:17,707 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:17,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash 286149057, now seen corresponding path program 1 times [2024-11-24 00:57:17,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:17,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470718389] [2024-11-24 00:57:17,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:06,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:58:06,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:06,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470718389] [2024-11-24 00:58:06,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470718389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:06,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:06,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:58:06,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256405891] [2024-11-24 00:58:06,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:06,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:58:06,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:06,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:58:06,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:58:06,070 INFO L87 Difference]: Start difference. First operand 568 states and 863 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:58:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:07,968 INFO L93 Difference]: Finished difference Result 908 states and 1341 transitions. [2024-11-24 00:58:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:58:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 217 [2024-11-24 00:58:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:07,972 INFO L225 Difference]: With dead ends: 908 [2024-11-24 00:58:07,972 INFO L226 Difference]: Without dead ends: 906 [2024-11-24 00:58:07,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:58:07,973 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 433 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:07,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 1452 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:58:07,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-24 00:58:08,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 658. [2024-11-24 00:58:08,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 553 states have (on average 1.4466546112115732) internal successors, (800), 553 states have internal predecessors, (800), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:58:08,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 998 transitions. [2024-11-24 00:58:08,056 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 998 transitions. Word has length 217 [2024-11-24 00:58:08,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:08,057 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 998 transitions. [2024-11-24 00:58:08,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:58:08,057 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 998 transitions. [2024-11-24 00:58:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-24 00:58:08,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:08,059 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:08,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:58:08,060 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:08,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2085590205, now seen corresponding path program 1 times [2024-11-24 00:58:08,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:08,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825858775] [2024-11-24 00:58:08,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:08,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:33,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:58:33,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:33,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825858775] [2024-11-24 00:58:33,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825858775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:33,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:33,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:58:33,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504850294] [2024-11-24 00:58:33,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:33,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:58:33,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:33,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:58:33,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:58:33,996 INFO L87 Difference]: Start difference. First operand 658 states and 998 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:58:36,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:36,074 INFO L93 Difference]: Finished difference Result 939 states and 1379 transitions. [2024-11-24 00:58:36,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:58:36,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 217 [2024-11-24 00:58:36,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:36,078 INFO L225 Difference]: With dead ends: 939 [2024-11-24 00:58:36,078 INFO L226 Difference]: Without dead ends: 937 [2024-11-24 00:58:36,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:58:36,080 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 502 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:36,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1206 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:58:36,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-24 00:58:36,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 745. [2024-11-24 00:58:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 640 states have (on average 1.446875) internal successors, (926), 640 states have internal predecessors, (926), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:58:36,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1124 transitions. [2024-11-24 00:58:36,176 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1124 transitions. Word has length 217 [2024-11-24 00:58:36,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:36,177 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1124 transitions. [2024-11-24 00:58:36,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:58:36,177 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1124 transitions. [2024-11-24 00:58:36,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-24 00:58:36,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:36,180 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:36,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:58:36,180 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:36,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:36,181 INFO L85 PathProgramCache]: Analyzing trace with hash -223324033, now seen corresponding path program 1 times [2024-11-24 00:58:36,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:36,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807560176] [2024-11-24 00:58:36,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:36,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:58:36,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:36,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807560176] [2024-11-24 00:58:36,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807560176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:36,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:36,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:58:36,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969590153] [2024-11-24 00:58:36,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:36,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:58:36,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:36,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:58:36,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:58:36,419 INFO L87 Difference]: Start difference. First operand 745 states and 1124 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:58:36,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:36,750 INFO L93 Difference]: Finished difference Result 1263 states and 1906 transitions. [2024-11-24 00:58:36,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:58:36,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 217 [2024-11-24 00:58:36,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:36,759 INFO L225 Difference]: With dead ends: 1263 [2024-11-24 00:58:36,759 INFO L226 Difference]: Without dead ends: 772 [2024-11-24 00:58:36,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:58:36,761 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 124 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:36,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 651 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:58:36,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-11-24 00:58:36,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 748. [2024-11-24 00:58:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 643 states have (on average 1.4447900466562986) internal successors, (929), 643 states have internal predecessors, (929), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:58:36,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1127 transitions. [2024-11-24 00:58:36,859 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1127 transitions. Word has length 217 [2024-11-24 00:58:36,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:36,860 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1127 transitions. [2024-11-24 00:58:36,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:58:36,860 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1127 transitions. [2024-11-24 00:58:36,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-24 00:58:36,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:36,863 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:36,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:58:36,863 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:36,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:36,864 INFO L85 PathProgramCache]: Analyzing trace with hash 326961505, now seen corresponding path program 1 times [2024-11-24 00:58:36,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:36,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088479522] [2024-11-24 00:58:36,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:36,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:40,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:58:40,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:40,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088479522] [2024-11-24 00:58:40,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088479522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:40,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:40,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:58:40,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323712071] [2024-11-24 00:58:40,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:40,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:58:40,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:40,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:58:40,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:58:40,590 INFO L87 Difference]: Start difference. First operand 748 states and 1127 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:58:42,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:42,868 INFO L93 Difference]: Finished difference Result 1315 states and 1983 transitions. [2024-11-24 00:58:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:58:42,869 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 217 [2024-11-24 00:58:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:42,875 INFO L225 Difference]: With dead ends: 1315 [2024-11-24 00:58:42,875 INFO L226 Difference]: Without dead ends: 1069 [2024-11-24 00:58:42,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:58:42,877 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 206 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:42,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1408 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:58:42,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2024-11-24 00:58:42,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 832. [2024-11-24 00:58:42,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 727 states have (on average 1.4718019257221457) internal successors, (1070), 727 states have internal predecessors, (1070), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:58:42,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1268 transitions. [2024-11-24 00:58:42,984 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1268 transitions. Word has length 217 [2024-11-24 00:58:42,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:42,985 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1268 transitions. [2024-11-24 00:58:42,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:58:42,986 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1268 transitions. [2024-11-24 00:58:42,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-24 00:58:42,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:42,988 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:42,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:58:42,989 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:42,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:42,990 INFO L85 PathProgramCache]: Analyzing trace with hash -745517370, now seen corresponding path program 1 times [2024-11-24 00:58:42,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:42,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448163205] [2024-11-24 00:58:42,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:42,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:58:46,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:46,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448163205] [2024-11-24 00:58:46,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448163205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:46,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:46,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:58:46,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904900874] [2024-11-24 00:58:46,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:46,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:58:46,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:46,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:58:46,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:58:46,629 INFO L87 Difference]: Start difference. First operand 832 states and 1268 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:58:48,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:48,594 INFO L93 Difference]: Finished difference Result 1382 states and 2090 transitions. [2024-11-24 00:58:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:58:48,595 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 217 [2024-11-24 00:58:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:48,600 INFO L225 Difference]: With dead ends: 1382 [2024-11-24 00:58:48,601 INFO L226 Difference]: Without dead ends: 1030 [2024-11-24 00:58:48,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:58:48,603 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 275 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:48,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 1074 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:58:48,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-24 00:58:48,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 832. [2024-11-24 00:58:48,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 727 states have (on average 1.4718019257221457) internal successors, (1070), 727 states have internal predecessors, (1070), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:58:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1268 transitions. [2024-11-24 00:58:48,698 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1268 transitions. Word has length 217 [2024-11-24 00:58:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:48,699 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1268 transitions. [2024-11-24 00:58:48,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:58:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1268 transitions. [2024-11-24 00:58:48,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-24 00:58:48,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:48,702 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:48,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:58:48,702 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:48,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:48,703 INFO L85 PathProgramCache]: Analyzing trace with hash -275215144, now seen corresponding path program 1 times [2024-11-24 00:58:48,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:48,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697433336] [2024-11-24 00:58:48,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:48,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:59:21,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:21,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697433336] [2024-11-24 00:59:21,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697433336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:21,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:21,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 00:59:21,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370896594] [2024-11-24 00:59:21,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:21,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:59:21,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:21,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:59:21,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:59:21,480 INFO L87 Difference]: Start difference. First operand 832 states and 1268 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:59:24,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:24,785 INFO L93 Difference]: Finished difference Result 1050 states and 1548 transitions. [2024-11-24 00:59:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:59:24,786 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 218 [2024-11-24 00:59:24,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:24,792 INFO L225 Difference]: With dead ends: 1050 [2024-11-24 00:59:24,792 INFO L226 Difference]: Without dead ends: 1048 [2024-11-24 00:59:24,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:59:24,794 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 541 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:24,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 1158 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 00:59:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-24 00:59:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 855. [2024-11-24 00:59:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 750 states have (on average 1.472) internal successors, (1104), 750 states have internal predecessors, (1104), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:59:24,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1302 transitions. [2024-11-24 00:59:24,895 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1302 transitions. Word has length 218 [2024-11-24 00:59:24,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:24,896 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1302 transitions. [2024-11-24 00:59:24,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:59:24,897 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1302 transitions. [2024-11-24 00:59:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-24 00:59:24,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:24,899 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:59:24,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:59:24,900 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:24,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1286332394, now seen corresponding path program 1 times [2024-11-24 00:59:24,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:24,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2492951] [2024-11-24 00:59:24,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:24,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:59:24,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:24,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2492951] [2024-11-24 00:59:24,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2492951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:24,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:24,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:59:24,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744177685] [2024-11-24 00:59:24,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:24,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:59:24,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:24,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:59:24,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:59:24,992 INFO L87 Difference]: Start difference. First operand 855 states and 1302 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:59:25,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:25,078 INFO L93 Difference]: Finished difference Result 1372 states and 2075 transitions. [2024-11-24 00:59:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:59:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 218 [2024-11-24 00:59:25,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:25,082 INFO L225 Difference]: With dead ends: 1372 [2024-11-24 00:59:25,082 INFO L226 Difference]: Without dead ends: 928 [2024-11-24 00:59:25,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:59:25,085 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 58 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:25,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 439 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:59:25,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-24 00:59:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 855. [2024-11-24 00:59:25,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 750 states have (on average 1.452) internal successors, (1089), 750 states have internal predecessors, (1089), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:59:25,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1287 transitions. [2024-11-24 00:59:25,173 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1287 transitions. Word has length 218 [2024-11-24 00:59:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:25,173 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1287 transitions. [2024-11-24 00:59:25,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 00:59:25,174 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1287 transitions. [2024-11-24 00:59:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-24 00:59:25,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:25,176 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:59:25,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:59:25,177 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:25,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:25,177 INFO L85 PathProgramCache]: Analyzing trace with hash -784688234, now seen corresponding path program 1 times [2024-11-24 00:59:25,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:25,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440500315] [2024-11-24 00:59:25,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:25,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 00:59:59,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:59,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440500315] [2024-11-24 00:59:59,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440500315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:59,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:59,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 00:59:59,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296495628] [2024-11-24 00:59:59,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:59,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:59:59,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:59,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:59:59,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:59:59,056 INFO L87 Difference]: Start difference. First operand 855 states and 1287 transitions. Second operand has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:00:05,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:05,075 INFO L93 Difference]: Finished difference Result 1024 states and 1493 transitions. [2024-11-24 01:00:05,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:00:05,076 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 218 [2024-11-24 01:00:05,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:05,085 INFO L225 Difference]: With dead ends: 1024 [2024-11-24 01:00:05,085 INFO L226 Difference]: Without dead ends: 1022 [2024-11-24 01:00:05,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:00:05,088 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 538 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:05,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 1066 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 01:00:05,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-11-24 01:00:05,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 878. [2024-11-24 01:00:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 773 states have (on average 1.4489003880983182) internal successors, (1120), 773 states have internal predecessors, (1120), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:05,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1318 transitions. [2024-11-24 01:00:05,203 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1318 transitions. Word has length 218 [2024-11-24 01:00:05,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:05,203 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1318 transitions. [2024-11-24 01:00:05,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:00:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1318 transitions. [2024-11-24 01:00:05,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-24 01:00:05,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:05,207 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:05,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:00:05,207 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:05,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:05,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1037840366, now seen corresponding path program 1 times [2024-11-24 01:00:05,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:05,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003918603] [2024-11-24 01:00:05,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:05,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:11,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:00:11,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:11,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003918603] [2024-11-24 01:00:11,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003918603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:11,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:00:11,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:00:11,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974445638] [2024-11-24 01:00:11,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:11,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:00:11,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:11,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:00:11,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:00:11,663 INFO L87 Difference]: Start difference. First operand 878 states and 1318 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:17,843 INFO L93 Difference]: Finished difference Result 1429 states and 2128 transitions. [2024-11-24 01:00:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:00:17,845 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 218 [2024-11-24 01:00:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:17,851 INFO L225 Difference]: With dead ends: 1429 [2024-11-24 01:00:17,851 INFO L226 Difference]: Without dead ends: 1073 [2024-11-24 01:00:17,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:00:17,853 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 284 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:17,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 1003 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 01:00:17,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-11-24 01:00:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 868. [2024-11-24 01:00:17,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 763 states have (on average 1.4469200524246395) internal successors, (1104), 763 states have internal predecessors, (1104), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1302 transitions. [2024-11-24 01:00:17,966 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1302 transitions. Word has length 218 [2024-11-24 01:00:17,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:17,967 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1302 transitions. [2024-11-24 01:00:17,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:17,967 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1302 transitions. [2024-11-24 01:00:17,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-24 01:00:17,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:17,970 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:17,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:00:17,970 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:17,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:17,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1717898736, now seen corresponding path program 1 times [2024-11-24 01:00:17,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:17,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255804713] [2024-11-24 01:00:17,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:17,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:26,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:00:26,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:26,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255804713] [2024-11-24 01:00:26,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255804713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:26,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:00:26,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:00:26,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242602105] [2024-11-24 01:00:26,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:26,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:00:26,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:26,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:00:26,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:00:26,941 INFO L87 Difference]: Start difference. First operand 868 states and 1302 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:34,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:34,317 INFO L93 Difference]: Finished difference Result 1386 states and 2045 transitions. [2024-11-24 01:00:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:00:34,318 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 218 [2024-11-24 01:00:34,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:34,321 INFO L225 Difference]: With dead ends: 1386 [2024-11-24 01:00:34,321 INFO L226 Difference]: Without dead ends: 1014 [2024-11-24 01:00:34,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:00:34,323 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 363 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:34,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1015 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-24 01:00:34,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-24 01:00:34,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 852. [2024-11-24 01:00:34,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 747 states have (on average 1.4511378848728247) internal successors, (1084), 747 states have internal predecessors, (1084), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:34,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1282 transitions. [2024-11-24 01:00:34,410 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1282 transitions. Word has length 218 [2024-11-24 01:00:34,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:34,411 INFO L471 AbstractCegarLoop]: Abstraction has 852 states and 1282 transitions. [2024-11-24 01:00:34,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:34,412 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1282 transitions. [2024-11-24 01:00:34,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-24 01:00:34,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:34,414 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:34,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:00:34,415 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:34,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:34,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1359386645, now seen corresponding path program 1 times [2024-11-24 01:00:34,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:34,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188822106] [2024-11-24 01:00:34,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:34,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:34,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:00:34,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:34,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188822106] [2024-11-24 01:00:34,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188822106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:34,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:00:34,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:00:34,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850009229] [2024-11-24 01:00:34,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:34,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:00:34,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:34,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:00:34,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:00:34,931 INFO L87 Difference]: Start difference. First operand 852 states and 1282 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:35,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:35,762 INFO L93 Difference]: Finished difference Result 1284 states and 1929 transitions. [2024-11-24 01:00:35,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:00:35,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 219 [2024-11-24 01:00:35,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:35,768 INFO L225 Difference]: With dead ends: 1284 [2024-11-24 01:00:35,768 INFO L226 Difference]: Without dead ends: 910 [2024-11-24 01:00:35,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:00:35,770 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 217 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:35,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 627 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:00:35,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2024-11-24 01:00:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 850. [2024-11-24 01:00:35,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 745 states have (on average 1.446979865771812) internal successors, (1078), 745 states have internal predecessors, (1078), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:35,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1276 transitions. [2024-11-24 01:00:35,870 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1276 transitions. Word has length 219 [2024-11-24 01:00:35,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:35,871 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1276 transitions. [2024-11-24 01:00:35,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1276 transitions. [2024-11-24 01:00:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-24 01:00:35,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:35,874 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:35,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:00:35,875 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:35,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:35,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1913662773, now seen corresponding path program 1 times [2024-11-24 01:00:35,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:35,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782448556] [2024-11-24 01:00:35,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:35,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:00:36,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:36,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782448556] [2024-11-24 01:00:36,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782448556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:36,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:00:36,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:00:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580038794] [2024-11-24 01:00:36,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:36,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:00:36,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:36,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:00:36,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:00:36,425 INFO L87 Difference]: Start difference. First operand 850 states and 1276 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:37,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:37,413 INFO L93 Difference]: Finished difference Result 1382 states and 2071 transitions. [2024-11-24 01:00:37,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:00:37,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 219 [2024-11-24 01:00:37,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:37,419 INFO L225 Difference]: With dead ends: 1382 [2024-11-24 01:00:37,419 INFO L226 Difference]: Without dead ends: 885 [2024-11-24 01:00:37,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:00:37,421 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 151 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:37,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 765 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:00:37,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-11-24 01:00:37,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 849. [2024-11-24 01:00:37,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 744 states have (on average 1.446236559139785) internal successors, (1076), 744 states have internal predecessors, (1076), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1274 transitions. [2024-11-24 01:00:37,527 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1274 transitions. Word has length 219 [2024-11-24 01:00:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:37,528 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1274 transitions. [2024-11-24 01:00:37,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1274 transitions. [2024-11-24 01:00:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-24 01:00:37,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:37,530 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:37,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 01:00:37,531 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:37,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:37,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1699125414, now seen corresponding path program 1 times [2024-11-24 01:00:37,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:37,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806809557] [2024-11-24 01:00:37,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:37,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:00:37,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:37,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806809557] [2024-11-24 01:00:37,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806809557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:37,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:00:37,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:00:37,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832017596] [2024-11-24 01:00:37,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:37,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:00:37,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:37,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:00:37,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:00:37,651 INFO L87 Difference]: Start difference. First operand 849 states and 1274 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:37,864 INFO L93 Difference]: Finished difference Result 1410 states and 2132 transitions. [2024-11-24 01:00:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:00:37,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 221 [2024-11-24 01:00:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:37,870 INFO L225 Difference]: With dead ends: 1410 [2024-11-24 01:00:37,871 INFO L226 Difference]: Without dead ends: 914 [2024-11-24 01:00:37,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:00:37,873 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 50 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:37,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 331 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:00:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-11-24 01:00:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 824. [2024-11-24 01:00:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 719 states have (on average 1.4631432545201668) internal successors, (1052), 719 states have internal predecessors, (1052), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1250 transitions. [2024-11-24 01:00:37,986 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1250 transitions. Word has length 221 [2024-11-24 01:00:37,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:37,987 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 1250 transitions. [2024-11-24 01:00:37,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:37,987 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1250 transitions. [2024-11-24 01:00:37,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-24 01:00:37,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:37,989 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:37,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 01:00:37,990 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:37,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:37,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2146192662, now seen corresponding path program 1 times [2024-11-24 01:00:37,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:37,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991461385] [2024-11-24 01:00:37,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:37,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:38,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:00:38,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:38,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991461385] [2024-11-24 01:00:38,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991461385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:38,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:00:38,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:00:38,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567153952] [2024-11-24 01:00:38,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:38,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:00:38,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:38,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:00:38,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:00:38,400 INFO L87 Difference]: Start difference. First operand 824 states and 1250 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:39,200 INFO L93 Difference]: Finished difference Result 1431 states and 2150 transitions. [2024-11-24 01:00:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:00:39,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 222 [2024-11-24 01:00:39,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:39,207 INFO L225 Difference]: With dead ends: 1431 [2024-11-24 01:00:39,207 INFO L226 Difference]: Without dead ends: 959 [2024-11-24 01:00:39,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:00:39,209 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 150 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:39,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 806 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:00:39,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-11-24 01:00:39,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 881. [2024-11-24 01:00:39,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 776 states have (on average 1.4626288659793814) internal successors, (1135), 776 states have internal predecessors, (1135), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:39,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1333 transitions. [2024-11-24 01:00:39,322 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1333 transitions. Word has length 222 [2024-11-24 01:00:39,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:39,322 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1333 transitions. [2024-11-24 01:00:39,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:39,323 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1333 transitions. [2024-11-24 01:00:39,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-24 01:00:39,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:39,325 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:39,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 01:00:39,325 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:39,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:39,326 INFO L85 PathProgramCache]: Analyzing trace with hash 351547633, now seen corresponding path program 1 times [2024-11-24 01:00:39,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:39,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581059788] [2024-11-24 01:00:39,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:39,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:00:39,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:39,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581059788] [2024-11-24 01:00:39,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581059788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:39,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:00:39,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:00:39,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189810838] [2024-11-24 01:00:39,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:39,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:00:39,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:39,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:00:39,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:00:39,758 INFO L87 Difference]: Start difference. First operand 881 states and 1333 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:40,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:40,584 INFO L93 Difference]: Finished difference Result 1441 states and 2159 transitions. [2024-11-24 01:00:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:00:40,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 222 [2024-11-24 01:00:40,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:40,591 INFO L225 Difference]: With dead ends: 1441 [2024-11-24 01:00:40,591 INFO L226 Difference]: Without dead ends: 961 [2024-11-24 01:00:40,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:00:40,593 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 160 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:40,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 813 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:00:40,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-11-24 01:00:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 848. [2024-11-24 01:00:40,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 743 states have (on average 1.4508748317631224) internal successors, (1078), 743 states have internal predecessors, (1078), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:40,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1276 transitions. [2024-11-24 01:00:40,692 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1276 transitions. Word has length 222 [2024-11-24 01:00:40,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:40,692 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1276 transitions. [2024-11-24 01:00:40,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:40,693 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1276 transitions. [2024-11-24 01:00:40,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-24 01:00:40,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:40,694 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:40,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 01:00:40,695 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:40,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:40,695 INFO L85 PathProgramCache]: Analyzing trace with hash 572433569, now seen corresponding path program 1 times [2024-11-24 01:00:40,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:40,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861835907] [2024-11-24 01:00:40,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:40,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:00:41,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:41,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861835907] [2024-11-24 01:00:41,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861835907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:41,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:00:41,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:00:41,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937976128] [2024-11-24 01:00:41,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:41,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:00:41,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:41,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:00:41,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:00:41,090 INFO L87 Difference]: Start difference. First operand 848 states and 1276 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:41,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:41,736 INFO L93 Difference]: Finished difference Result 1354 states and 2041 transitions. [2024-11-24 01:00:41,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:00:41,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 225 [2024-11-24 01:00:41,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:41,741 INFO L225 Difference]: With dead ends: 1354 [2024-11-24 01:00:41,741 INFO L226 Difference]: Without dead ends: 819 [2024-11-24 01:00:41,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:00:41,742 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 114 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:41,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 515 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:00:41,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-24 01:00:41,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 785. [2024-11-24 01:00:41,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 680 states have (on average 1.451470588235294) internal successors, (987), 680 states have internal predecessors, (987), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:41,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1185 transitions. [2024-11-24 01:00:41,812 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1185 transitions. Word has length 225 [2024-11-24 01:00:41,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:41,812 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 1185 transitions. [2024-11-24 01:00:41,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:41,813 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1185 transitions. [2024-11-24 01:00:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-24 01:00:41,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:41,814 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:41,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 01:00:41,815 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:41,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:41,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1547377256, now seen corresponding path program 1 times [2024-11-24 01:00:41,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:41,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968538286] [2024-11-24 01:00:41,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:41,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:44,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:00:44,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:44,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968538286] [2024-11-24 01:00:44,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968538286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:00:44,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:00:44,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:00:44,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386568232] [2024-11-24 01:00:44,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:44,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:00:44,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:44,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:00:44,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:00:44,888 INFO L87 Difference]: Start difference. First operand 785 states and 1185 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, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:47,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:47,975 INFO L93 Difference]: Finished difference Result 1337 states and 2001 transitions. [2024-11-24 01:00:47,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:00:47,975 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, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 225 [2024-11-24 01:00:47,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:47,980 INFO L225 Difference]: With dead ends: 1337 [2024-11-24 01:00:47,980 INFO L226 Difference]: Without dead ends: 865 [2024-11-24 01:00:47,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:00:47,983 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 561 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:47,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1099 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:00:47,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-24 01:00:48,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 807. [2024-11-24 01:00:48,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 702 states have (on average 1.4373219373219372) internal successors, (1009), 702 states have internal predecessors, (1009), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:00:48,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1207 transitions. [2024-11-24 01:00:48,061 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1207 transitions. Word has length 225 [2024-11-24 01:00:48,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:48,061 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 1207 transitions. [2024-11-24 01:00:48,062 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, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:00:48,062 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1207 transitions. [2024-11-24 01:00:48,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-24 01:00:48,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:48,064 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:48,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 01:00:48,064 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:48,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:48,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1726521686, now seen corresponding path program 1 times [2024-11-24 01:00:48,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:48,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765250980] [2024-11-24 01:00:48,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:48,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:19,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:01:19,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:19,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765250980] [2024-11-24 01:01:19,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765250980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:19,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:19,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 01:01:19,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74734023] [2024-11-24 01:01:19,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:19,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:01:19,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:19,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:01:19,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:01:19,554 INFO L87 Difference]: Start difference. First operand 807 states and 1207 transitions. Second operand has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-24 01:01:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:23,366 INFO L93 Difference]: Finished difference Result 913 states and 1320 transitions. [2024-11-24 01:01:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 01:01:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 225 [2024-11-24 01:01:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:23,371 INFO L225 Difference]: With dead ends: 913 [2024-11-24 01:01:23,371 INFO L226 Difference]: Without dead ends: 911 [2024-11-24 01:01:23,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=339, Invalid=1143, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 01:01:23,373 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 695 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:23,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1770 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:01:23,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2024-11-24 01:01:23,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 822. [2024-11-24 01:01:23,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 717 states have (on average 1.4323570432357042) internal successors, (1027), 717 states have internal predecessors, (1027), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:01:23,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1225 transitions. [2024-11-24 01:01:23,448 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1225 transitions. Word has length 225 [2024-11-24 01:01:23,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:23,449 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 1225 transitions. [2024-11-24 01:01:23,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-24 01:01:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1225 transitions. [2024-11-24 01:01:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-24 01:01:23,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:23,451 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:23,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 01:01:23,452 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:23,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:23,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1654135128, now seen corresponding path program 1 times [2024-11-24 01:01:23,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:23,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642945083] [2024-11-24 01:01:23,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:54,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:01:54,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:54,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642945083] [2024-11-24 01:01:54,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642945083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:54,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:54,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 01:01:54,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199631018] [2024-11-24 01:01:54,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:54,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:01:54,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:54,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:01:54,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:01:54,338 INFO L87 Difference]: Start difference. First operand 822 states and 1225 transitions. Second operand has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:02:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:02,575 INFO L93 Difference]: Finished difference Result 1085 states and 1530 transitions. [2024-11-24 01:02:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 01:02:02,576 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 225 [2024-11-24 01:02:02,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:02,580 INFO L225 Difference]: With dead ends: 1085 [2024-11-24 01:02:02,580 INFO L226 Difference]: Without dead ends: 1083 [2024-11-24 01:02:02,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=387, Invalid=1683, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 01:02:02,582 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 365 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:02,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1359 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 01:02:02,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-11-24 01:02:02,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 855. [2024-11-24 01:02:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 750 states have (on average 1.432) internal successors, (1074), 750 states have internal predecessors, (1074), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:02:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1272 transitions. [2024-11-24 01:02:02,675 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1272 transitions. Word has length 225 [2024-11-24 01:02:02,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:02,676 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1272 transitions. [2024-11-24 01:02:02,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:02:02,676 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1272 transitions. [2024-11-24 01:02:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-24 01:02:02,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:02,677 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:02,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 01:02:02,677 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:02,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:02,678 INFO L85 PathProgramCache]: Analyzing trace with hash -708969016, now seen corresponding path program 1 times [2024-11-24 01:02:02,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:02,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118819239] [2024-11-24 01:02:02,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:02,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:02:03,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:03,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118819239] [2024-11-24 01:02:03,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118819239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:03,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:03,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:02:03,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543111901] [2024-11-24 01:02:03,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:03,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:02:03,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:03,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:02:03,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:02:03,305 INFO L87 Difference]: Start difference. First operand 855 states and 1272 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:02:04,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:04,899 INFO L93 Difference]: Finished difference Result 1487 states and 2187 transitions. [2024-11-24 01:02:04,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:02:04,899 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 225 [2024-11-24 01:02:04,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:04,904 INFO L225 Difference]: With dead ends: 1487 [2024-11-24 01:02:04,905 INFO L226 Difference]: Without dead ends: 1003 [2024-11-24 01:02:04,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:02:04,907 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 206 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:04,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1337 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:02:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-24 01:02:05,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 851. [2024-11-24 01:02:05,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 746 states have (on average 1.4316353887399464) internal successors, (1068), 746 states have internal predecessors, (1068), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:02:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1266 transitions. [2024-11-24 01:02:05,027 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1266 transitions. Word has length 225 [2024-11-24 01:02:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:05,028 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1266 transitions. [2024-11-24 01:02:05,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:02:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1266 transitions. [2024-11-24 01:02:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-24 01:02:05,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:05,030 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:05,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 01:02:05,030 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:05,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:05,031 INFO L85 PathProgramCache]: Analyzing trace with hash -575820269, now seen corresponding path program 1 times [2024-11-24 01:02:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:05,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889511016] [2024-11-24 01:02:05,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:05,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:02:42,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:42,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889511016] [2024-11-24 01:02:42,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889511016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:42,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:42,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 01:02:42,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180221552] [2024-11-24 01:02:42,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:42,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:02:42,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:42,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:02:42,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:02:42,079 INFO L87 Difference]: Start difference. First operand 851 states and 1266 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:02:50,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:50,910 INFO L93 Difference]: Finished difference Result 1027 states and 1466 transitions. [2024-11-24 01:02:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 01:02:50,910 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 226 [2024-11-24 01:02:50,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:50,914 INFO L225 Difference]: With dead ends: 1027 [2024-11-24 01:02:50,914 INFO L226 Difference]: Without dead ends: 1025 [2024-11-24 01:02:50,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=491, Invalid=1861, Unknown=0, NotChecked=0, Total=2352 [2024-11-24 01:02:50,916 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 704 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:50,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1229 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-24 01:02:50,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2024-11-24 01:02:50,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 870. [2024-11-24 01:02:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 765 states have (on average 1.4366013071895425) internal successors, (1099), 765 states have internal predecessors, (1099), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:02:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1297 transitions. [2024-11-24 01:02:50,993 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1297 transitions. Word has length 226 [2024-11-24 01:02:50,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:50,994 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1297 transitions. [2024-11-24 01:02:50,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:02:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1297 transitions. [2024-11-24 01:02:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-24 01:02:50,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:50,996 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:50,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 01:02:50,996 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:50,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:50,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1475163729, now seen corresponding path program 1 times [2024-11-24 01:02:50,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:50,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477888537] [2024-11-24 01:02:50,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:50,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:19,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:03:19,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:19,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477888537] [2024-11-24 01:03:19,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477888537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:19,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:19,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 01:03:19,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933730320] [2024-11-24 01:03:19,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:19,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:03:19,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:19,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:03:19,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:03:19,030 INFO L87 Difference]: Start difference. First operand 870 states and 1297 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:03:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:27,094 INFO L93 Difference]: Finished difference Result 1059 states and 1499 transitions. [2024-11-24 01:03:27,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 01:03:27,095 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 226 [2024-11-24 01:03:27,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:27,099 INFO L225 Difference]: With dead ends: 1059 [2024-11-24 01:03:27,099 INFO L226 Difference]: Without dead ends: 1057 [2024-11-24 01:03:27,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=444, Invalid=1718, Unknown=0, NotChecked=0, Total=2162 [2024-11-24 01:03:27,101 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 545 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:27,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1215 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-24 01:03:27,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2024-11-24 01:03:27,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 874. [2024-11-24 01:03:27,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 769 states have (on average 1.435630689206762) internal successors, (1104), 769 states have internal predecessors, (1104), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:03:27,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1302 transitions. [2024-11-24 01:03:27,222 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1302 transitions. Word has length 226 [2024-11-24 01:03:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:27,224 INFO L471 AbstractCegarLoop]: Abstraction has 874 states and 1302 transitions. [2024-11-24 01:03:27,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:03:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1302 transitions. [2024-11-24 01:03:27,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-24 01:03:27,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:27,228 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:27,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 01:03:27,228 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:27,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:27,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1059421473, now seen corresponding path program 1 times [2024-11-24 01:03:27,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:27,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771590749] [2024-11-24 01:03:27,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:27,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:03:50,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:50,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771590749] [2024-11-24 01:03:50,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771590749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:50,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:50,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 01:03:50,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018832887] [2024-11-24 01:03:50,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:50,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:03:50,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:50,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:03:50,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:03:50,218 INFO L87 Difference]: Start difference. First operand 874 states and 1302 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:03:54,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:54,131 INFO L93 Difference]: Finished difference Result 1004 states and 1440 transitions. [2024-11-24 01:03:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:03:54,132 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 229 [2024-11-24 01:03:54,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:54,137 INFO L225 Difference]: With dead ends: 1004 [2024-11-24 01:03:54,137 INFO L226 Difference]: Without dead ends: 1002 [2024-11-24 01:03:54,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:03:54,139 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 349 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:54,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1847 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 01:03:54,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-11-24 01:03:54,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 872. [2024-11-24 01:03:54,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 767 states have (on average 1.436766623207301) internal successors, (1102), 767 states have internal predecessors, (1102), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:03:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1300 transitions. [2024-11-24 01:03:54,267 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1300 transitions. Word has length 229 [2024-11-24 01:03:54,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:54,267 INFO L471 AbstractCegarLoop]: Abstraction has 872 states and 1300 transitions. [2024-11-24 01:03:54,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:03:54,268 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1300 transitions. [2024-11-24 01:03:54,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-24 01:03:54,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:54,273 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:54,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 01:03:54,273 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:54,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:54,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1112175267, now seen corresponding path program 1 times [2024-11-24 01:03:54,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:54,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465522249] [2024-11-24 01:03:54,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:54,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:03:54,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:54,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465522249] [2024-11-24 01:03:54,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465522249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:54,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:54,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:03:54,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997477167] [2024-11-24 01:03:54,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:54,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:03:54,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:54,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:03:54,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:03:54,992 INFO L87 Difference]: Start difference. First operand 872 states and 1300 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:03:56,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:56,145 INFO L93 Difference]: Finished difference Result 1424 states and 2115 transitions. [2024-11-24 01:03:56,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:03:56,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 229 [2024-11-24 01:03:56,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:56,149 INFO L225 Difference]: With dead ends: 1424 [2024-11-24 01:03:56,149 INFO L226 Difference]: Without dead ends: 891 [2024-11-24 01:03:56,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:03:56,151 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 170 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:56,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 967 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:03:56,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-24 01:03:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 811. [2024-11-24 01:03:56,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 706 states have (on average 1.4362606232294617) internal successors, (1014), 706 states have internal predecessors, (1014), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:03:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1212 transitions. [2024-11-24 01:03:56,270 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1212 transitions. Word has length 229 [2024-11-24 01:03:56,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:56,271 INFO L471 AbstractCegarLoop]: Abstraction has 811 states and 1212 transitions. [2024-11-24 01:03:56,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:03:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1212 transitions. [2024-11-24 01:03:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-24 01:03:56,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:56,273 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:56,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 01:03:56,273 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:56,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1832074390, now seen corresponding path program 1 times [2024-11-24 01:03:56,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:56,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400503510] [2024-11-24 01:03:56,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:56,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:25,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:04:25,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:25,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400503510] [2024-11-24 01:04:25,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400503510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:25,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:25,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 01:04:25,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219601153] [2024-11-24 01:04:25,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:25,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 01:04:25,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:25,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 01:04:25,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:04:25,009 INFO L87 Difference]: Start difference. First operand 811 states and 1212 transitions. Second operand has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:04:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:30,511 INFO L93 Difference]: Finished difference Result 905 states and 1312 transitions. [2024-11-24 01:04:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:04:30,511 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 230 [2024-11-24 01:04:30,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:30,513 INFO L225 Difference]: With dead ends: 905 [2024-11-24 01:04:30,513 INFO L226 Difference]: Without dead ends: 903 [2024-11-24 01:04:30,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=275, Invalid=1131, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 01:04:30,514 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 463 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:30,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1671 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-24 01:04:30,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-24 01:04:30,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 781. [2024-11-24 01:04:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 676 states have (on average 1.433431952662722) internal successors, (969), 676 states have internal predecessors, (969), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:04:30,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1167 transitions. [2024-11-24 01:04:30,579 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1167 transitions. Word has length 230 [2024-11-24 01:04:30,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:30,580 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 1167 transitions. [2024-11-24 01:04:30,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:04:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1167 transitions. [2024-11-24 01:04:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-24 01:04:30,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:30,582 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:30,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 01:04:30,582 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:30,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:30,582 INFO L85 PathProgramCache]: Analyzing trace with hash 218909608, now seen corresponding path program 1 times [2024-11-24 01:04:30,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:30,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340535573] [2024-11-24 01:04:30,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:30,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:59,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-24 01:04:59,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:59,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340535573] [2024-11-24 01:04:59,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340535573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:59,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:59,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 01:04:59,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327527697] [2024-11-24 01:04:59,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:59,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:04:59,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:59,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:04:59,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:04:59,184 INFO L87 Difference]: Start difference. First operand 781 states and 1167 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:05:04,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:04,323 INFO L93 Difference]: Finished difference Result 911 states and 1318 transitions. [2024-11-24 01:05:04,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:05:04,324 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 230 [2024-11-24 01:05:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:04,327 INFO L225 Difference]: With dead ends: 911 [2024-11-24 01:05:04,327 INFO L226 Difference]: Without dead ends: 909 [2024-11-24 01:05:04,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=221, Invalid=901, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:05:04,328 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 313 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:04,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1610 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 01:05:04,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-24 01:05:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 749. [2024-11-24 01:05:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 644 states have (on average 1.4316770186335404) internal successors, (922), 644 states have internal predecessors, (922), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:05:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1120 transitions. [2024-11-24 01:05:04,400 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1120 transitions. Word has length 230 [2024-11-24 01:05:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:04,401 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1120 transitions. [2024-11-24 01:05:04,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:05:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1120 transitions. [2024-11-24 01:05:04,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-24 01:05:04,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:04,405 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:04,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 01:05:04,405 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:04,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:04,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1557277922, now seen corresponding path program 1 times [2024-11-24 01:05:04,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:04,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993122762] [2024-11-24 01:05:04,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:04,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:05,244 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 70 proven. 7 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-24 01:05:05,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:05,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993122762] [2024-11-24 01:05:05,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993122762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:05,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817535486] [2024-11-24 01:05:05,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:05,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:05,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:05,249 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:05,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:05:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:05,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:05:05,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 997 proven. 4477 refuted. 0 times theorem prover too weak. 3183 trivial. 0 not checked. [2024-11-24 01:05:07,658 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 190 proven. 63 refuted. 0 times theorem prover too weak. 8404 trivial. 0 not checked. [2024-11-24 01:05:08,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817535486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:08,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:08,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 7] total 19 [2024-11-24 01:05:08,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683095636] [2024-11-24 01:05:08,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:08,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:05:08,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:08,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:05:08,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:05:08,500 INFO L87 Difference]: Start difference. First operand 749 states and 1120 transitions. Second operand has 19 states, 19 states have (on average 13.0) internal successors, (247), 19 states have internal predecessors, (247), 6 states have call successors, (153), 4 states have call predecessors, (153), 6 states have return successors, (154), 6 states have call predecessors, (154), 6 states have call successors, (154) [2024-11-24 01:05:09,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:09,729 INFO L93 Difference]: Finished difference Result 1212 states and 1786 transitions. [2024-11-24 01:05:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:05:09,730 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.0) internal successors, (247), 19 states have internal predecessors, (247), 6 states have call successors, (153), 4 states have call predecessors, (153), 6 states have return successors, (154), 6 states have call predecessors, (154), 6 states have call successors, (154) Word has length 427 [2024-11-24 01:05:09,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:09,733 INFO L225 Difference]: With dead ends: 1212 [2024-11-24 01:05:09,733 INFO L226 Difference]: Without dead ends: 871 [2024-11-24 01:05:09,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:05:09,735 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 1282 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:09,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1195 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:05:09,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-24 01:05:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 761. [2024-11-24 01:05:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 653 states have (on average 1.4119448698315467) internal successors, (922), 653 states have internal predecessors, (922), 99 states have call successors, (99), 8 states have call predecessors, (99), 8 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 01:05:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1120 transitions. [2024-11-24 01:05:09,861 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1120 transitions. Word has length 427 [2024-11-24 01:05:09,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:09,861 INFO L471 AbstractCegarLoop]: Abstraction has 761 states and 1120 transitions. [2024-11-24 01:05:09,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.0) internal successors, (247), 19 states have internal predecessors, (247), 6 states have call successors, (153), 4 states have call predecessors, (153), 6 states have return successors, (154), 6 states have call predecessors, (154), 6 states have call successors, (154) [2024-11-24 01:05:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1120 transitions. [2024-11-24 01:05:09,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-24 01:05:09,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:09,866 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:09,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:05:10,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:10,071 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:10,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:10,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2044423074, now seen corresponding path program 1 times [2024-11-24 01:05:10,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:10,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213388845] [2024-11-24 01:05:10,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:10,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 23 proven. 54 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-24 01:05:10,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:10,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213388845] [2024-11-24 01:05:10,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213388845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:10,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55828206] [2024-11-24 01:05:10,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:10,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:10,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:10,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:10,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:05:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:11,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 01:05:11,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:14,872 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 284 proven. 4515 refuted. 0 times theorem prover too weak. 3858 trivial. 0 not checked. [2024-11-24 01:05:14,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:15,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55828206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:15,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:05:15,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14] total 20 [2024-11-24 01:05:15,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751208124] [2024-11-24 01:05:15,731 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:15,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:05:15,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:15,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:05:15,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:05:15,733 INFO L87 Difference]: Start difference. First operand 761 states and 1120 transitions. Second operand has 20 states, 20 states have (on average 9.9) internal successors, (198), 20 states have internal predecessors, (198), 5 states have call successors, (132), 4 states have call predecessors, (132), 5 states have return successors, (132), 5 states have call predecessors, (132), 5 states have call successors, (132) [2024-11-24 01:05:22,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:22,246 INFO L93 Difference]: Finished difference Result 2596 states and 3753 transitions. [2024-11-24 01:05:22,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-24 01:05:22,247 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.9) internal successors, (198), 20 states have internal predecessors, (198), 5 states have call successors, (132), 4 states have call predecessors, (132), 5 states have return successors, (132), 5 states have call predecessors, (132), 5 states have call successors, (132) Word has length 427 [2024-11-24 01:05:22,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:22,256 INFO L225 Difference]: With dead ends: 2596 [2024-11-24 01:05:22,256 INFO L226 Difference]: Without dead ends: 2116 [2024-11-24 01:05:22,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2216 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1723, Invalid=6467, Unknown=0, NotChecked=0, Total=8190 [2024-11-24 01:05:22,262 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 3624 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3624 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 3221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:22,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3624 Valid, 2195 Invalid, 3221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1001 Valid, 2220 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 01:05:22,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2024-11-24 01:05:22,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1278. [2024-11-24 01:05:22,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1060 states have (on average 1.368867924528302) internal successors, (1451), 1060 states have internal predecessors, (1451), 198 states have call successors, (198), 19 states have call predecessors, (198), 19 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2024-11-24 01:05:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1847 transitions. [2024-11-24 01:05:22,518 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1847 transitions. Word has length 427 [2024-11-24 01:05:22,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:22,519 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1847 transitions. [2024-11-24 01:05:22,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.9) internal successors, (198), 20 states have internal predecessors, (198), 5 states have call successors, (132), 4 states have call predecessors, (132), 5 states have return successors, (132), 5 states have call predecessors, (132), 5 states have call successors, (132) [2024-11-24 01:05:22,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1847 transitions. [2024-11-24 01:05:22,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 01:05:22,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:22,526 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:22,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:05:22,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:22,727 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:22,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:22,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1736777345, now seen corresponding path program 1 times [2024-11-24 01:05:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:22,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093467407] [2024-11-24 01:05:22,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:22,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 23 proven. 54 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-24 01:05:23,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:23,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093467407] [2024-11-24 01:05:23,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093467407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:23,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376282202] [2024-11-24 01:05:23,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:23,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:23,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:23,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:23,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:05:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:23,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:05:23,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 23 proven. 4410 refuted. 0 times theorem prover too weak. 4224 trivial. 0 not checked. [2024-11-24 01:05:25,581 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 23 proven. 54 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-24 01:05:26,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376282202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:26,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:26,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-24 01:05:26,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795129219] [2024-11-24 01:05:26,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:26,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:05:26,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:26,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:05:26,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:05:26,385 INFO L87 Difference]: Start difference. First operand 1278 states and 1847 transitions. Second operand has 17 states, 17 states have (on average 12.823529411764707) internal successors, (218), 17 states have internal predecessors, (218), 5 states have call successors, (198), 3 states have call predecessors, (198), 3 states have return successors, (198), 5 states have call predecessors, (198), 5 states have call successors, (198) [2024-11-24 01:05:29,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:29,140 INFO L93 Difference]: Finished difference Result 2417 states and 3462 transitions. [2024-11-24 01:05:29,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:05:29,141 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 12.823529411764707) internal successors, (218), 17 states have internal predecessors, (218), 5 states have call successors, (198), 3 states have call predecessors, (198), 3 states have return successors, (198), 5 states have call predecessors, (198), 5 states have call successors, (198) Word has length 429 [2024-11-24 01:05:29,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:29,149 INFO L225 Difference]: With dead ends: 2417 [2024-11-24 01:05:29,149 INFO L226 Difference]: Without dead ends: 1940 [2024-11-24 01:05:29,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 854 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=277, Invalid=779, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:05:29,152 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 1548 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:29,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 2544 Invalid, 1648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:05:29,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2024-11-24 01:05:29,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1282. [2024-11-24 01:05:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1064 states have (on average 1.3674812030075187) internal successors, (1455), 1064 states have internal predecessors, (1455), 198 states have call successors, (198), 19 states have call predecessors, (198), 19 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2024-11-24 01:05:29,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1851 transitions. [2024-11-24 01:05:29,446 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1851 transitions. Word has length 429 [2024-11-24 01:05:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:29,447 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1851 transitions. [2024-11-24 01:05:29,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.823529411764707) internal successors, (218), 17 states have internal predecessors, (218), 5 states have call successors, (198), 3 states have call predecessors, (198), 3 states have return successors, (198), 5 states have call predecessors, (198), 5 states have call successors, (198) [2024-11-24 01:05:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1851 transitions. [2024-11-24 01:05:29,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 01:05:29,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:29,453 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:29,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:05:29,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:29,654 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:29,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:29,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1193710456, now seen corresponding path program 1 times [2024-11-24 01:05:29,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:29,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986468429] [2024-11-24 01:05:29,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:29,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:42,779 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 3 proven. 74 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-24 01:05:42,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:42,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986468429] [2024-11-24 01:05:42,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986468429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:42,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405242987] [2024-11-24 01:05:42,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:42,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:42,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:42,782 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:42,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:05:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:43,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 01:05:43,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 691 proven. 4488 refuted. 0 times theorem prover too weak. 3478 trivial. 0 not checked. [2024-11-24 01:05:45,882 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:05:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 41 proven. 231 refuted. 0 times theorem prover too weak. 8385 trivial. 0 not checked. [2024-11-24 01:05:47,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405242987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:05:47,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:05:47,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 11] total 34 [2024-11-24 01:05:47,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952997030] [2024-11-24 01:05:47,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:05:47,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-24 01:05:47,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:47,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-24 01:05:47,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:05:47,307 INFO L87 Difference]: Start difference. First operand 1282 states and 1851 transitions. Second operand has 34 states, 34 states have (on average 8.411764705882353) internal successors, (286), 34 states have internal predecessors, (286), 8 states have call successors, (198), 4 states have call predecessors, (198), 6 states have return successors, (198), 8 states have call predecessors, (198), 8 states have call successors, (198) [2024-11-24 01:06:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:02,808 INFO L93 Difference]: Finished difference Result 3584 states and 5175 transitions. [2024-11-24 01:06:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-24 01:06:02,809 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.411764705882353) internal successors, (286), 34 states have internal predecessors, (286), 8 states have call successors, (198), 4 states have call predecessors, (198), 6 states have return successors, (198), 8 states have call predecessors, (198), 8 states have call successors, (198) Word has length 429 [2024-11-24 01:06:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:02,818 INFO L225 Difference]: With dead ends: 3584 [2024-11-24 01:06:02,818 INFO L226 Difference]: Without dead ends: 2659 [2024-11-24 01:06:02,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 931 GetRequests, 849 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1791 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=944, Invalid=6028, Unknown=0, NotChecked=0, Total=6972 [2024-11-24 01:06:02,824 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 2792 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 5620 mSolverCounterSat, 871 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 6491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 871 IncrementalHoareTripleChecker+Valid, 5620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:02,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 3648 Invalid, 6491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [871 Valid, 5620 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2024-11-24 01:06:02,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2024-11-24 01:06:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 1705. [2024-11-24 01:06:03,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1376 states have (on average 1.351017441860465) internal successors, (1859), 1376 states have internal predecessors, (1859), 297 states have call successors, (297), 31 states have call predecessors, (297), 31 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-11-24 01:06:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2453 transitions. [2024-11-24 01:06:03,261 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2453 transitions. Word has length 429 [2024-11-24 01:06:03,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:03,262 INFO L471 AbstractCegarLoop]: Abstraction has 1705 states and 2453 transitions. [2024-11-24 01:06:03,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.411764705882353) internal successors, (286), 34 states have internal predecessors, (286), 8 states have call successors, (198), 4 states have call predecessors, (198), 6 states have return successors, (198), 8 states have call predecessors, (198), 8 states have call successors, (198) [2024-11-24 01:06:03,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2453 transitions. [2024-11-24 01:06:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-24 01:06:03,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:03,270 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:03,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:06:03,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:03,471 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:03,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:03,471 INFO L85 PathProgramCache]: Analyzing trace with hash -448342271, now seen corresponding path program 1 times [2024-11-24 01:06:03,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:03,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811996095] [2024-11-24 01:06:03,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:03,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 8656 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 8638 trivial. 0 not checked. [2024-11-24 01:06:08,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:08,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811996095] [2024-11-24 01:06:08,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811996095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:08,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419220372] [2024-11-24 01:06:08,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:08,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:08,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:08,420 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:08,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:06:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:09,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-24 01:06:09,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 8656 backedges. 1183 proven. 4731 refuted. 0 times theorem prover too weak. 2742 trivial. 0 not checked. [2024-11-24 01:06:16,384 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:06:17,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419220372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:17,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:06:17,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 23] total 31 [2024-11-24 01:06:17,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856015597] [2024-11-24 01:06:17,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:06:17,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 01:06:17,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:17,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 01:06:17,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1077, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 01:06:17,250 INFO L87 Difference]: Start difference. First operand 1705 states and 2453 transitions. Second operand has 31 states, 31 states have (on average 6.548387096774194) internal successors, (203), 30 states have internal predecessors, (203), 7 states have call successors, (99), 7 states have call predecessors, (99), 10 states have return successors, (99), 7 states have call predecessors, (99), 7 states have call successors, (99) [2024-11-24 01:06:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:32,271 INFO L93 Difference]: Finished difference Result 4217 states and 5899 transitions. [2024-11-24 01:06:32,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-24 01:06:32,272 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 6.548387096774194) internal successors, (203), 30 states have internal predecessors, (203), 7 states have call successors, (99), 7 states have call predecessors, (99), 10 states have return successors, (99), 7 states have call predecessors, (99), 7 states have call successors, (99) Word has length 430 [2024-11-24 01:06:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:32,283 INFO L225 Difference]: With dead ends: 4217 [2024-11-24 01:06:32,283 INFO L226 Difference]: Without dead ends: 2824 [2024-11-24 01:06:32,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2922 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=935, Invalid=8571, Unknown=0, NotChecked=0, Total=9506 [2024-11-24 01:06:32,290 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 1405 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 4688 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 4939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 4688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:32,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 2814 Invalid, 4939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 4688 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-24 01:06:32,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2024-11-24 01:06:32,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 1652. [2024-11-24 01:06:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1316 states have (on average 1.3411854103343466) internal successors, (1765), 1316 states have internal predecessors, (1765), 297 states have call successors, (297), 38 states have call predecessors, (297), 38 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-11-24 01:06:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2359 transitions. [2024-11-24 01:06:32,642 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2359 transitions. Word has length 430 [2024-11-24 01:06:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:32,643 INFO L471 AbstractCegarLoop]: Abstraction has 1652 states and 2359 transitions. [2024-11-24 01:06:32,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.548387096774194) internal successors, (203), 30 states have internal predecessors, (203), 7 states have call successors, (99), 7 states have call predecessors, (99), 10 states have return successors, (99), 7 states have call predecessors, (99), 7 states have call successors, (99) [2024-11-24 01:06:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2359 transitions. [2024-11-24 01:06:32,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-24 01:06:32,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:32,651 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:32,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:06:32,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:32,852 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:32,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:32,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1308885566, now seen corresponding path program 1 times [2024-11-24 01:06:32,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:32,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493469761] [2024-11-24 01:06:32,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:32,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 70 proven. 7 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-24 01:06:33,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493469761] [2024-11-24 01:06:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493469761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841128225] [2024-11-24 01:06:33,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:33,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:33,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:33,554 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:33,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:06:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:33,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 01:06:33,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:34,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 14 proven. 4419 refuted. 0 times theorem prover too weak. 4224 trivial. 0 not checked. [2024-11-24 01:06:34,530 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:06:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-24 01:06:35,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841128225] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:35,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:06:35,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 8] total 16 [2024-11-24 01:06:35,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396713666] [2024-11-24 01:06:35,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:35,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:06:35,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:35,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:06:35,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:06:35,155 INFO L87 Difference]: Start difference. First operand 1652 states and 2359 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-11-24 01:06:35,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:35,990 INFO L93 Difference]: Finished difference Result 2386 states and 3403 transitions. [2024-11-24 01:06:35,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:06:35,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 431 [2024-11-24 01:06:35,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:35,998 INFO L225 Difference]: With dead ends: 2386 [2024-11-24 01:06:35,998 INFO L226 Difference]: Without dead ends: 1879 [2024-11-24 01:06:36,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:06:36,001 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 323 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:36,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 715 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:06:36,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2024-11-24 01:06:36,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1652. [2024-11-24 01:06:36,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1316 states have (on average 1.3358662613981762) internal successors, (1758), 1316 states have internal predecessors, (1758), 297 states have call successors, (297), 38 states have call predecessors, (297), 38 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-11-24 01:06:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2352 transitions. [2024-11-24 01:06:36,477 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2352 transitions. Word has length 431 [2024-11-24 01:06:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:36,478 INFO L471 AbstractCegarLoop]: Abstraction has 1652 states and 2352 transitions. [2024-11-24 01:06:36,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-11-24 01:06:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2352 transitions. [2024-11-24 01:06:36,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-24 01:06:36,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:36,484 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:36,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:06:36,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-24 01:06:36,684 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:36,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:36,685 INFO L85 PathProgramCache]: Analyzing trace with hash 196591685, now seen corresponding path program 1 times [2024-11-24 01:06:36,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:36,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180973800] [2024-11-24 01:06:36,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:36,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:40,934 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 5 proven. 72 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-24 01:06:40,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:40,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180973800] [2024-11-24 01:06:40,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180973800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:40,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25348618] [2024-11-24 01:06:40,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:40,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:40,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:40,937 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:40,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c03184b-c137-4014-a2c8-f4400227f12c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:06:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:41,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 01:06:41,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 4430 proven. 2 refuted. 0 times theorem prover too weak. 4225 trivial. 0 not checked. [2024-11-24 01:06:44,610 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:06:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 8638 trivial. 0 not checked. [2024-11-24 01:06:58,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25348618] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:58,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:06:58,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16, 15] total 37 [2024-11-24 01:06:58,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158466657] [2024-11-24 01:06:58,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:58,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:06:58,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:58,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:06:58,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1182, Unknown=1, NotChecked=0, Total=1332 [2024-11-24 01:06:58,895 INFO L87 Difference]: Start difference. First operand 1652 states and 2352 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-24 01:07:05,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:11,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:15,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:18,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:22,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:26,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:31,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:34,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:38,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:40,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:46,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:50,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:07:56,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:00,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:03,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:04,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:08,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:12,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:16,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:20,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:27,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:29,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:30,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:35,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:38,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:43,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:47,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:50,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:08:52,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:09:00,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:09:02,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:09:07,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:09:12,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:09:17,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:09:20,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:09:25,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1]