./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/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_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/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_4ddab204-9dc9-48a4-9615-9c2e7f072555/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 59727828023891546cc5a25cf7f297a1b2c37fd03b88eda6114da55f7e3ce778 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:03:15,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:03:15,980 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:03:15,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:03:15,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:03:16,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:03:16,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:03:16,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:03:16,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:03:16,023 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:03:16,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:03:16,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:03:16,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:03:16,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:03:16,025 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:03:16,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:03:16,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:03:16,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:03:16,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:03:16,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:03:16,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:03:16,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:03:16,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:03:16,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:03:16,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:03:16,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:03:16,027 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:03:16,027 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:03:16,027 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:03:16,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:03:16,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:03:16,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:03:16,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:03:16,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:03:16,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:03:16,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:03:16,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:03:16,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:03:16,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:03:16,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:03:16,029 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:03:16,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:03:16,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:03:16,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:03:16,030 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:03:16,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:03:16,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:03:16,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:03:16,030 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_4ddab204-9dc9-48a4-9615-9c2e7f072555/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 -> 59727828023891546cc5a25cf7f297a1b2c37fd03b88eda6114da55f7e3ce778 [2024-11-24 00:03:16,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:03:16,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:03:16,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:03:16,367 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:03:16,367 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:03:16,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2024-11-24 00:03:19,451 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/data/17977c74c/3eae1a8050174b2cbf502d50cf994b52/FLAG8d910bfa8 [2024-11-24 00:03:19,716 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:03:19,717 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2024-11-24 00:03:19,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/data/17977c74c/3eae1a8050174b2cbf502d50cf994b52/FLAG8d910bfa8 [2024-11-24 00:03:19,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/data/17977c74c/3eae1a8050174b2cbf502d50cf994b52 [2024-11-24 00:03:19,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:03:19,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:03:19,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:03:19,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:03:19,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:03:19,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:03:19" (1/1) ... [2024-11-24 00:03:19,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4846c169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:19, skipping insertion in model container [2024-11-24 00:03:19,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:03:19" (1/1) ... [2024-11-24 00:03:19,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:03:19,963 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_4ddab204-9dc9-48a4-9615-9c2e7f072555/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i[919,932] [2024-11-24 00:03:20,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:03:20,115 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:03:20,129 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_4ddab204-9dc9-48a4-9615-9c2e7f072555/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i[919,932] [2024-11-24 00:03:20,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:03:20,246 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:03:20,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20 WrapperNode [2024-11-24 00:03:20,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:03:20,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:03:20,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:03:20,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:03:20,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,357 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 235 [2024-11-24 00:03:20,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:03:20,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:03:20,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:03:20,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:03:20,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,421 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 00:03:20,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,438 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:03:20,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:03:20,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:03:20,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:03:20,470 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (1/1) ... [2024-11-24 00:03:20,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:03:20,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:20,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:03:20,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:03:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:03:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:03:20,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:03:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:03:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:03:20,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:03:20,643 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:03:20,646 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:03:21,241 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-24 00:03:21,241 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:03:21,257 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:03:21,257 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:03:21,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:21 BoogieIcfgContainer [2024-11-24 00:03:21,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:03:21,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:03:21,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:03:21,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:03:21,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:03:19" (1/3) ... [2024-11-24 00:03:21,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718a564e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:21, skipping insertion in model container [2024-11-24 00:03:21,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:20" (2/3) ... [2024-11-24 00:03:21,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718a564e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:21, skipping insertion in model container [2024-11-24 00:03:21,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:21" (3/3) ... [2024-11-24 00:03:21,270 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2024-11-24 00:03:21,287 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:03:21,290 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i that has 2 procedures, 98 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:03:21,359 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:03:21,375 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;@1beb6be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:03:21,375 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:03:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 69 states have internal predecessors, (101), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:03:21,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:03:21,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:21,396 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:21,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:21,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:21,403 INFO L85 PathProgramCache]: Analyzing trace with hash -2015951129, now seen corresponding path program 1 times [2024-11-24 00:03:21,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:21,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793969371] [2024-11-24 00:03:21,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:21,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:21,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-24 00:03:21,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:21,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793969371] [2024-11-24 00:03:21,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793969371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:21,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151348508] [2024-11-24 00:03:21,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:21,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:21,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:21,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:21,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:03:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:22,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:03:22,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-24 00:03:22,145 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:22,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151348508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:22,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:03:22,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:03:22,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282577877] [2024-11-24 00:03:22,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:22,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:03:22,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:22,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:03:22,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:03:22,179 INFO L87 Difference]: Start difference. First operand has 98 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 69 states have internal predecessors, (101), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:03:22,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:22,217 INFO L93 Difference]: Finished difference Result 189 states and 331 transitions. [2024-11-24 00:03:22,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:03:22,219 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-24 00:03:22,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:22,226 INFO L225 Difference]: With dead ends: 189 [2024-11-24 00:03:22,227 INFO L226 Difference]: Without dead ends: 94 [2024-11-24 00:03:22,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:03:22,237 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:22,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:03:22,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-24 00:03:22,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-24 00:03:22,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:03:22,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2024-11-24 00:03:22,294 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 175 [2024-11-24 00:03:22,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:22,294 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2024-11-24 00:03:22,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:03:22,295 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2024-11-24 00:03:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:03:22,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:22,299 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:22,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:03:22,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:22,500 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:22,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash 476781609, now seen corresponding path program 1 times [2024-11-24 00:03:22,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:22,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456790131] [2024-11-24 00:03:22,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:22,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:03:23,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:23,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456790131] [2024-11-24 00:03:23,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456790131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:23,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:23,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:03:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049351850] [2024-11-24 00:03:23,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:23,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:03:23,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:23,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:03:23,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:03:23,092 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:23,149 INFO L93 Difference]: Finished difference Result 186 states and 293 transitions. [2024-11-24 00:03:23,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:03:23,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-24 00:03:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:23,154 INFO L225 Difference]: With dead ends: 186 [2024-11-24 00:03:23,154 INFO L226 Difference]: Without dead ends: 95 [2024-11-24 00:03:23,155 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 00:03:23,156 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:23,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:03:23,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-24 00:03:23,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-24 00:03:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:03:23,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 148 transitions. [2024-11-24 00:03:23,181 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 148 transitions. Word has length 175 [2024-11-24 00:03:23,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:23,185 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 148 transitions. [2024-11-24 00:03:23,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 148 transitions. [2024-11-24 00:03:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:03:23,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:23,190 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:23,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:03:23,190 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:23,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:23,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1517363097, now seen corresponding path program 1 times [2024-11-24 00:03:23,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:23,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630247595] [2024-11-24 00:03:23,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:23,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:03:23,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:23,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630247595] [2024-11-24 00:03:23,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630247595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:23,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:23,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:03:23,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806862156] [2024-11-24 00:03:23,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:23,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:03:23,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:23,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:03:23,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:03:23,677 INFO L87 Difference]: Start difference. First operand 95 states and 148 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:24,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:24,069 INFO L93 Difference]: Finished difference Result 280 states and 439 transitions. [2024-11-24 00:03:24,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:03:24,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-24 00:03:24,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:24,073 INFO L225 Difference]: With dead ends: 280 [2024-11-24 00:03:24,073 INFO L226 Difference]: Without dead ends: 188 [2024-11-24 00:03:24,076 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 00:03:24,078 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 147 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:24,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 475 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:03:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-24 00:03:24,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 168. [2024-11-24 00:03:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 111 states have (on average 1.3963963963963963) internal successors, (155), 111 states have internal predecessors, (155), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 00:03:24,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 263 transitions. [2024-11-24 00:03:24,117 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 263 transitions. Word has length 175 [2024-11-24 00:03:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:24,120 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 263 transitions. [2024-11-24 00:03:24,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 263 transitions. [2024-11-24 00:03:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:03:24,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:24,123 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:24,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:03:24,127 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:24,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:24,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1766486949, now seen corresponding path program 1 times [2024-11-24 00:03:24,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:24,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927278090] [2024-11-24 00:03:24,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:24,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:24,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:03:24,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:24,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927278090] [2024-11-24 00:03:24,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927278090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:24,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:24,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:03:24,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519320360] [2024-11-24 00:03:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:24,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:03:24,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:24,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:03:24,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:03:24,524 INFO L87 Difference]: Start difference. First operand 168 states and 263 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:24,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:24,573 INFO L93 Difference]: Finished difference Result 378 states and 594 transitions. [2024-11-24 00:03:24,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:03:24,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-24 00:03:24,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:24,578 INFO L225 Difference]: With dead ends: 378 [2024-11-24 00:03:24,581 INFO L226 Difference]: Without dead ends: 260 [2024-11-24 00:03:24,582 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 00:03:24,583 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 100 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:24,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 306 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:03:24,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-24 00:03:24,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2024-11-24 00:03:24,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 173 states have (on average 1.4046242774566473) internal successors, (243), 173 states have internal predecessors, (243), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-24 00:03:24,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 405 transitions. [2024-11-24 00:03:24,622 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 405 transitions. Word has length 175 [2024-11-24 00:03:24,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:24,622 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 405 transitions. [2024-11-24 00:03:24,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:24,623 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 405 transitions. [2024-11-24 00:03:24,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:03:24,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:24,625 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:24,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:03:24,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:24,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:24,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1985341667, now seen corresponding path program 1 times [2024-11-24 00:03:24,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:24,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138371346] [2024-11-24 00:03:24,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:24,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:03:38,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:38,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138371346] [2024-11-24 00:03:38,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138371346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:38,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:38,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 00:03:38,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531018799] [2024-11-24 00:03:38,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:38,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:03:38,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:38,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:03:38,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:03:38,843 INFO L87 Difference]: Start difference. First operand 258 states and 405 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:43,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:43,892 INFO L93 Difference]: Finished difference Result 431 states and 662 transitions. [2024-11-24 00:03:43,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:03:43,893 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-24 00:03:43,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:43,896 INFO L225 Difference]: With dead ends: 431 [2024-11-24 00:03:43,896 INFO L226 Difference]: Without dead ends: 339 [2024-11-24 00:03:43,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=220, Invalid=650, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:03:43,901 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 413 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:43,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 875 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 00:03:43,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-24 00:03:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 274. [2024-11-24 00:03:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 189 states have (on average 1.402116402116402) internal successors, (265), 189 states have internal predecessors, (265), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-24 00:03:43,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 427 transitions. [2024-11-24 00:03:43,958 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 427 transitions. Word has length 175 [2024-11-24 00:03:43,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:43,962 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 427 transitions. [2024-11-24 00:03:43,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:43,962 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 427 transitions. [2024-11-24 00:03:43,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:03:43,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:43,964 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:43,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:03:43,964 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:43,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1608561051, now seen corresponding path program 1 times [2024-11-24 00:03:43,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:43,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556513382] [2024-11-24 00:03:43,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:43,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:03:44,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:44,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556513382] [2024-11-24 00:03:44,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556513382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:44,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:44,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:03:44,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130475233] [2024-11-24 00:03:44,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:44,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:03:44,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:44,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:03:44,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:03:44,072 INFO L87 Difference]: Start difference. First operand 274 states and 427 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:44,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:44,135 INFO L93 Difference]: Finished difference Result 548 states and 860 transitions. [2024-11-24 00:03:44,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:03:44,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-24 00:03:44,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:44,140 INFO L225 Difference]: With dead ends: 548 [2024-11-24 00:03:44,141 INFO L226 Difference]: Without dead ends: 366 [2024-11-24 00:03:44,141 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 00:03:44,142 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 139 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:44,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 293 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:03:44,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-24 00:03:44,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 364. [2024-11-24 00:03:44,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 251 states have (on average 1.3904382470119523) internal successors, (349), 251 states have internal predecessors, (349), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:03:44,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 565 transitions. [2024-11-24 00:03:44,194 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 565 transitions. Word has length 175 [2024-11-24 00:03:44,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:44,195 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 565 transitions. [2024-11-24 00:03:44,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 565 transitions. [2024-11-24 00:03:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:03:44,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:44,198 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:44,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:03:44,198 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:44,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:44,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1257394045, now seen corresponding path program 1 times [2024-11-24 00:03:44,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:44,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955228778] [2024-11-24 00:03:44,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:44,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:03:44,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:44,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955228778] [2024-11-24 00:03:44,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955228778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:44,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:44,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:03:44,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38592085] [2024-11-24 00:03:44,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:44,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:03:44,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:44,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:03:44,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:03:44,515 INFO L87 Difference]: Start difference. First operand 364 states and 565 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:44,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:44,580 INFO L93 Difference]: Finished difference Result 652 states and 1012 transitions. [2024-11-24 00:03:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:03:44,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-24 00:03:44,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:44,585 INFO L225 Difference]: With dead ends: 652 [2024-11-24 00:03:44,585 INFO L226 Difference]: Without dead ends: 377 [2024-11-24 00:03:44,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:03:44,587 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 6 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:44,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 274 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:03:44,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-24 00:03:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 364. [2024-11-24 00:03:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 251 states have (on average 1.3745019920318724) internal successors, (345), 251 states have internal predecessors, (345), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:03:44,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 561 transitions. [2024-11-24 00:03:44,620 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 561 transitions. Word has length 176 [2024-11-24 00:03:44,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:44,621 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 561 transitions. [2024-11-24 00:03:44,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:03:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 561 transitions. [2024-11-24 00:03:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:03:44,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:44,623 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:44,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:03:44,624 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:44,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1262565889, now seen corresponding path program 1 times [2024-11-24 00:03:44,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:44,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139113373] [2024-11-24 00:03:44,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:03:52,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:52,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139113373] [2024-11-24 00:03:52,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139113373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:52,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:52,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 00:03:52,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997993999] [2024-11-24 00:03:52,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:52,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:03:52,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:52,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:03:52,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:03:52,394 INFO L87 Difference]: Start difference. First operand 364 states and 561 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:03:59,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:59,098 INFO L93 Difference]: Finished difference Result 692 states and 1048 transitions. [2024-11-24 00:03:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:03:59,100 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176 [2024-11-24 00:03:59,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:59,104 INFO L225 Difference]: With dead ends: 692 [2024-11-24 00:03:59,105 INFO L226 Difference]: Without dead ends: 420 [2024-11-24 00:03:59,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:03:59,109 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 497 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:59,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1039 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:03:59,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-24 00:03:59,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 363. [2024-11-24 00:03:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 250 states have (on average 1.372) internal successors, (343), 250 states have internal predecessors, (343), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:03:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 559 transitions. [2024-11-24 00:03:59,176 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 559 transitions. Word has length 176 [2024-11-24 00:03:59,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:59,177 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 559 transitions. [2024-11-24 00:03:59,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:03:59,178 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 559 transitions. [2024-11-24 00:03:59,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:03:59,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:59,180 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:59,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:03:59,182 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:59,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:59,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1469551459, now seen corresponding path program 1 times [2024-11-24 00:03:59,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:59,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128672077] [2024-11-24 00:03:59,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:59,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:03,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:04:03,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:03,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128672077] [2024-11-24 00:04:03,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128672077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:03,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:03,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 00:04:03,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014301683] [2024-11-24 00:04:03,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:03,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:04:03,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:03,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:04:03,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:04:03,671 INFO L87 Difference]: Start difference. First operand 363 states and 559 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:04:04,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:04,901 INFO L93 Difference]: Finished difference Result 418 states and 621 transitions. [2024-11-24 00:04:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:04:04,902 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-24 00:04:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:04,906 INFO L225 Difference]: With dead ends: 418 [2024-11-24 00:04:04,906 INFO L226 Difference]: Without dead ends: 416 [2024-11-24 00:04:04,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:04:04,909 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 373 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:04,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 795 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:04:04,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-24 00:04:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 366. [2024-11-24 00:04:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 253 states have (on average 1.3715415019762847) internal successors, (347), 253 states have internal predecessors, (347), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:04:04,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 563 transitions. [2024-11-24 00:04:04,972 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 563 transitions. Word has length 176 [2024-11-24 00:04:04,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:04,973 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 563 transitions. [2024-11-24 00:04:04,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:04:04,973 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 563 transitions. [2024-11-24 00:04:04,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:04:04,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:04,978 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:04,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:04:04,979 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:04,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:04,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1706688612, now seen corresponding path program 1 times [2024-11-24 00:04:04,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:04,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627737865] [2024-11-24 00:04:04,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:04,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:14,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:04:14,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:14,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627737865] [2024-11-24 00:04:14,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627737865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:14,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:14,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 00:04:14,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260397175] [2024-11-24 00:04:14,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:14,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:04:14,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:14,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:04:14,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:04:14,391 INFO L87 Difference]: Start difference. First operand 366 states and 563 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:04:25,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:25,208 INFO L93 Difference]: Finished difference Result 436 states and 642 transitions. [2024-11-24 00:04:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:04:25,210 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-24 00:04:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:25,213 INFO L225 Difference]: With dead ends: 436 [2024-11-24 00:04:25,213 INFO L226 Difference]: Without dead ends: 434 [2024-11-24 00:04:25,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2024-11-24 00:04:25,215 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 372 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:25,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 750 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 00:04:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-24 00:04:25,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 376. [2024-11-24 00:04:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 263 states have (on average 1.3688212927756653) internal successors, (360), 263 states have internal predecessors, (360), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:04:25,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 576 transitions. [2024-11-24 00:04:25,253 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 576 transitions. Word has length 176 [2024-11-24 00:04:25,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:25,254 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 576 transitions. [2024-11-24 00:04:25,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:04:25,254 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 576 transitions. [2024-11-24 00:04:25,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:04:25,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:25,257 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:25,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:04:25,257 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:25,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:25,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1026630242, now seen corresponding path program 1 times [2024-11-24 00:04:25,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:25,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436913938] [2024-11-24 00:04:25,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:25,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:04:33,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:33,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436913938] [2024-11-24 00:04:33,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436913938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:33,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:33,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 00:04:33,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180711616] [2024-11-24 00:04:33,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:33,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:04:33,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:33,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:04:33,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:04:33,281 INFO L87 Difference]: Start difference. First operand 376 states and 576 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:04:44,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:44,811 INFO L93 Difference]: Finished difference Result 430 states and 636 transitions. [2024-11-24 00:04:44,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:04:44,812 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-24 00:04:44,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:44,815 INFO L225 Difference]: With dead ends: 430 [2024-11-24 00:04:44,815 INFO L226 Difference]: Without dead ends: 428 [2024-11-24 00:04:44,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2024-11-24 00:04:44,817 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 311 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:44,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 816 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 00:04:44,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-24 00:04:44,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 376. [2024-11-24 00:04:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 263 states have (on average 1.3688212927756653) internal successors, (360), 263 states have internal predecessors, (360), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:04:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 576 transitions. [2024-11-24 00:04:44,852 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 576 transitions. Word has length 176 [2024-11-24 00:04:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:44,852 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 576 transitions. [2024-11-24 00:04:44,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:04:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 576 transitions. [2024-11-24 00:04:44,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:04:44,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:44,855 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:44,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:04:44,855 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:44,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:44,856 INFO L85 PathProgramCache]: Analyzing trace with hash -431334969, now seen corresponding path program 1 times [2024-11-24 00:04:44,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:44,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283005045] [2024-11-24 00:04:44,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:44,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:04:50,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:50,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283005045] [2024-11-24 00:04:50,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283005045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:50,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:50,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 00:04:50,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69086973] [2024-11-24 00:04:50,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:50,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:04:50,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:50,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:04:50,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:04:50,568 INFO L87 Difference]: Start difference. First operand 376 states and 576 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 00:04:53,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:53,786 INFO L93 Difference]: Finished difference Result 423 states and 627 transitions. [2024-11-24 00:04:53,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:04:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 177 [2024-11-24 00:04:53,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:53,790 INFO L225 Difference]: With dead ends: 423 [2024-11-24 00:04:53,791 INFO L226 Difference]: Without dead ends: 421 [2024-11-24 00:04:53,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 00:04:53,792 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 568 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:53,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1049 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:04:53,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-24 00:04:53,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 373. [2024-11-24 00:04:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 260 states have (on average 1.3692307692307693) internal successors, (356), 260 states have internal predecessors, (356), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:04:53,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 572 transitions. [2024-11-24 00:04:53,833 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 572 transitions. Word has length 177 [2024-11-24 00:04:53,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:53,834 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 572 transitions. [2024-11-24 00:04:53,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 00:04:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 572 transitions. [2024-11-24 00:04:53,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:04:53,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:53,837 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:53,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:04:53,838 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:53,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:53,838 INFO L85 PathProgramCache]: Analyzing trace with hash 248612454, now seen corresponding path program 1 times [2024-11-24 00:04:53,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:53,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223516890] [2024-11-24 00:04:53,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:53,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:58,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:04:58,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:58,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223516890] [2024-11-24 00:04:58,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223516890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:58,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:58,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 00:04:58,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451910208] [2024-11-24 00:04:58,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:58,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:04:58,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:58,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:04:58,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:04:58,070 INFO L87 Difference]: Start difference. First operand 373 states and 572 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:05:03,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:03,537 INFO L93 Difference]: Finished difference Result 438 states and 644 transitions. [2024-11-24 00:05:03,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:05:03,538 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-24 00:05:03,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:03,541 INFO L225 Difference]: With dead ends: 438 [2024-11-24 00:05:03,541 INFO L226 Difference]: Without dead ends: 436 [2024-11-24 00:05:03,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=387, Invalid=1019, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:05:03,542 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 351 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:03,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 994 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 00:05:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-24 00:05:03,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 376. [2024-11-24 00:05:03,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 263 states have (on average 1.3688212927756653) internal successors, (360), 263 states have internal predecessors, (360), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:05:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 576 transitions. [2024-11-24 00:05:03,579 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 576 transitions. Word has length 177 [2024-11-24 00:05:03,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:03,580 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 576 transitions. [2024-11-24 00:05:03,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:05:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 576 transitions. [2024-11-24 00:05:03,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:05:03,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:03,581 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:03,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:05:03,582 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:03,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:03,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1312390452, now seen corresponding path program 1 times [2024-11-24 00:05:03,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:03,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031042458] [2024-11-24 00:05:03,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:03,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:05:10,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:05:10,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031042458] [2024-11-24 00:05:10,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031042458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:10,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:05:10,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 00:05:10,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686271481] [2024-11-24 00:05:10,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:10,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:05:10,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:05:10,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:05:10,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:05:10,080 INFO L87 Difference]: Start difference. First operand 376 states and 576 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:05:13,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:13,584 INFO L93 Difference]: Finished difference Result 434 states and 640 transitions. [2024-11-24 00:05:13,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:05:13,585 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-24 00:05:13,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:13,588 INFO L225 Difference]: With dead ends: 434 [2024-11-24 00:05:13,589 INFO L226 Difference]: Without dead ends: 432 [2024-11-24 00:05:13,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=314, Invalid=876, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 00:05:13,590 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 362 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:13,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 898 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:05:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-24 00:05:13,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 379. [2024-11-24 00:05:13,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 266 states have (on average 1.368421052631579) internal successors, (364), 266 states have internal predecessors, (364), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:05:13,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 580 transitions. [2024-11-24 00:05:13,626 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 580 transitions. Word has length 177 [2024-11-24 00:05:13,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:13,627 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 580 transitions. [2024-11-24 00:05:13,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:05:13,627 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 580 transitions. [2024-11-24 00:05:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:05:13,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:13,629 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:13,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:05:13,629 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:13,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:13,630 INFO L85 PathProgramCache]: Analyzing trace with hash -144414556, now seen corresponding path program 1 times [2024-11-24 00:05:13,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:13,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736094024] [2024-11-24 00:05:13,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:13,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:05:26,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:05:26,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736094024] [2024-11-24 00:05:26,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736094024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:26,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:05:26,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:05:26,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205299396] [2024-11-24 00:05:26,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:26,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:05:26,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:05:26,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:05:26,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:05:26,737 INFO L87 Difference]: Start difference. First operand 379 states and 580 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:05:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:40,115 INFO L93 Difference]: Finished difference Result 429 states and 635 transitions. [2024-11-24 00:05:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:05:40,116 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 177 [2024-11-24 00:05:40,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:40,119 INFO L225 Difference]: With dead ends: 429 [2024-11-24 00:05:40,119 INFO L226 Difference]: Without dead ends: 427 [2024-11-24 00:05:40,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 00:05:40,121 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 341 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:40,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 987 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-24 00:05:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-24 00:05:40,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 379. [2024-11-24 00:05:40,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 266 states have (on average 1.368421052631579) internal successors, (364), 266 states have internal predecessors, (364), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:05:40,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 580 transitions. [2024-11-24 00:05:40,156 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 580 transitions. Word has length 177 [2024-11-24 00:05:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:40,157 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 580 transitions. [2024-11-24 00:05:40,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:05:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 580 transitions. [2024-11-24 00:05:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:05:40,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:40,159 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:40,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:05:40,159 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:40,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:40,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1705417462, now seen corresponding path program 1 times [2024-11-24 00:05:40,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:40,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116743423] [2024-11-24 00:05:40,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:40,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:49,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:05:49,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:05:49,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116743423] [2024-11-24 00:05:49,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116743423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:49,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:05:49,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 00:05:49,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807028161] [2024-11-24 00:05:49,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:49,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:05:49,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:05:49,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:05:49,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:05:49,258 INFO L87 Difference]: Start difference. First operand 379 states and 580 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:05:59,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:59,020 INFO L93 Difference]: Finished difference Result 424 states and 629 transitions. [2024-11-24 00:05:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:05:59,021 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-24 00:05:59,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:59,024 INFO L225 Difference]: With dead ends: 424 [2024-11-24 00:05:59,024 INFO L226 Difference]: Without dead ends: 422 [2024-11-24 00:05:59,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=315, Invalid=807, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:05:59,026 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 271 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:59,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 894 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:05:59,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-24 00:05:59,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 377. [2024-11-24 00:05:59,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 264 states have (on average 1.3674242424242424) internal successors, (361), 264 states have internal predecessors, (361), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:05:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 577 transitions. [2024-11-24 00:05:59,059 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 577 transitions. Word has length 177 [2024-11-24 00:05:59,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:59,061 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 577 transitions. [2024-11-24 00:05:59,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:05:59,061 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 577 transitions. [2024-11-24 00:05:59,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:05:59,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:59,062 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:59,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:05:59,063 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:59,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:59,063 INFO L85 PathProgramCache]: Analyzing trace with hash 150778903, now seen corresponding path program 1 times [2024-11-24 00:05:59,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:59,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304767119] [2024-11-24 00:05:59,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:59,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:06:13,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:13,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304767119] [2024-11-24 00:06:13,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304767119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:13,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:13,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 00:06:13,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758034886] [2024-11-24 00:06:13,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:13,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:06:13,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:13,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:06:13,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:06:13,017 INFO L87 Difference]: Start difference. First operand 377 states and 577 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:06:24,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:24,233 INFO L93 Difference]: Finished difference Result 434 states and 640 transitions. [2024-11-24 00:06:24,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:06:24,233 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-24 00:06:24,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:24,235 INFO L225 Difference]: With dead ends: 434 [2024-11-24 00:06:24,235 INFO L226 Difference]: Without dead ends: 432 [2024-11-24 00:06:24,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=344, Invalid=916, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 00:06:24,236 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 263 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:24,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 976 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 00:06:24,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-24 00:06:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 383. [2024-11-24 00:06:24,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 270 states have (on average 1.3666666666666667) internal successors, (369), 270 states have internal predecessors, (369), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:06:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 585 transitions. [2024-11-24 00:06:24,271 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 585 transitions. Word has length 177 [2024-11-24 00:06:24,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:24,271 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 585 transitions. [2024-11-24 00:06:24,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:06:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 585 transitions. [2024-11-24 00:06:24,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:06:24,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:24,273 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:24,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:06:24,273 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:24,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash 830837273, now seen corresponding path program 1 times [2024-11-24 00:06:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:24,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817515863] [2024-11-24 00:06:24,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:24,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:40,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:06:40,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:40,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817515863] [2024-11-24 00:06:40,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817515863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:40,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:40,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 00:06:40,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437723703] [2024-11-24 00:06:40,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:40,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:06:40,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:40,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:06:40,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:06:40,828 INFO L87 Difference]: Start difference. First operand 383 states and 585 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:06:54,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:54,990 INFO L93 Difference]: Finished difference Result 428 states and 634 transitions. [2024-11-24 00:06:54,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:06:54,991 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-24 00:06:54,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:54,993 INFO L225 Difference]: With dead ends: 428 [2024-11-24 00:06:54,993 INFO L226 Difference]: Without dead ends: 426 [2024-11-24 00:06:54,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=341, Invalid=849, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 00:06:54,994 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 266 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:54,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 878 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 00:06:54,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-24 00:06:55,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 383. [2024-11-24 00:06:55,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 270 states have (on average 1.3666666666666667) internal successors, (369), 270 states have internal predecessors, (369), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:06:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 585 transitions. [2024-11-24 00:06:55,027 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 585 transitions. Word has length 177 [2024-11-24 00:06:55,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:55,028 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 585 transitions. [2024-11-24 00:06:55,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:06:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 585 transitions. [2024-11-24 00:06:55,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 00:06:55,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:55,030 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:55,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:06:55,030 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:55,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:55,030 INFO L85 PathProgramCache]: Analyzing trace with hash -827599550, now seen corresponding path program 1 times [2024-11-24 00:06:55,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:55,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258455904] [2024-11-24 00:06:55,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:55,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:06,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:07:06,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:06,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258455904] [2024-11-24 00:07:06,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258455904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:06,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:07:06,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 00:07:06,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856125276] [2024-11-24 00:07:06,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:06,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:07:06,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:06,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:07:06,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:07:06,477 INFO L87 Difference]: Start difference. First operand 383 states and 585 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:07:19,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:19,417 INFO L93 Difference]: Finished difference Result 435 states and 642 transitions. [2024-11-24 00:07:19,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:07:19,418 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2024-11-24 00:07:19,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:19,420 INFO L225 Difference]: With dead ends: 435 [2024-11-24 00:07:19,421 INFO L226 Difference]: Without dead ends: 433 [2024-11-24 00:07:19,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=330, Invalid=930, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 00:07:19,422 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 380 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:19,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1096 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-24 00:07:19,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-24 00:07:19,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 386. [2024-11-24 00:07:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 273 states have (on average 1.3663003663003663) internal successors, (373), 273 states have internal predecessors, (373), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:07:19,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2024-11-24 00:07:19,455 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 178 [2024-11-24 00:07:19,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:19,455 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2024-11-24 00:07:19,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:07:19,456 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2024-11-24 00:07:19,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 00:07:19,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:19,457 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:07:19,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:07:19,458 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:07:19,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:19,458 INFO L85 PathProgramCache]: Analyzing trace with hash -126534972, now seen corresponding path program 1 times [2024-11-24 00:07:19,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:19,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936187338] [2024-11-24 00:07:19,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:19,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:33,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:07:33,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:33,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936187338] [2024-11-24 00:07:33,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936187338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:33,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:07:33,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:07:33,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633085700] [2024-11-24 00:07:33,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:33,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:07:33,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:33,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:07:33,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:07:33,531 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:07:53,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:53,439 INFO L93 Difference]: Finished difference Result 425 states and 631 transitions. [2024-11-24 00:07:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:07:53,440 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2024-11-24 00:07:53,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:53,442 INFO L225 Difference]: With dead ends: 425 [2024-11-24 00:07:53,442 INFO L226 Difference]: Without dead ends: 423 [2024-11-24 00:07:53,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=329, Invalid=931, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 00:07:53,443 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 226 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:53,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1274 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 00:07:53,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-24 00:07:53,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 383. [2024-11-24 00:07:53,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 270 states have (on average 1.3666666666666667) internal successors, (369), 270 states have internal predecessors, (369), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:07:53,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 585 transitions. [2024-11-24 00:07:53,473 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 585 transitions. Word has length 178 [2024-11-24 00:07:53,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:53,474 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 585 transitions. [2024-11-24 00:07:53,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:07:53,474 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 585 transitions. [2024-11-24 00:07:53,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 00:07:53,475 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:53,475 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:07:53,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:07:53,476 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:07:53,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:53,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1995530571, now seen corresponding path program 1 times [2024-11-24 00:07:53,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:53,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906585675] [2024-11-24 00:07:53,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:53,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:08:08,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:08,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906585675] [2024-11-24 00:08:08,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906585675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:08,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:08,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:08:08,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402662614] [2024-11-24 00:08:08,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:08,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:08:08,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:08,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:08:08,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:08:08,915 INFO L87 Difference]: Start difference. First operand 383 states and 585 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:08:34,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:34,503 INFO L93 Difference]: Finished difference Result 436 states and 642 transitions. [2024-11-24 00:08:34,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:08:34,504 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2024-11-24 00:08:34,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:34,506 INFO L225 Difference]: With dead ends: 436 [2024-11-24 00:08:34,506 INFO L226 Difference]: Without dead ends: 434 [2024-11-24 00:08:34,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=465, Invalid=1257, Unknown=0, NotChecked=0, Total=1722 [2024-11-24 00:08:34,506 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 402 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:34,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 937 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-24 00:08:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-24 00:08:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 386. [2024-11-24 00:08:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 273 states have (on average 1.3663003663003663) internal successors, (373), 273 states have internal predecessors, (373), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:08:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2024-11-24 00:08:34,537 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 178 [2024-11-24 00:08:34,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:34,538 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2024-11-24 00:08:34,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:08:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2024-11-24 00:08:34,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 00:08:34,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:34,539 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:34,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:08:34,540 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:34,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:34,540 INFO L85 PathProgramCache]: Analyzing trace with hash 434527665, now seen corresponding path program 1 times [2024-11-24 00:08:34,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:34,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172330957] [2024-11-24 00:08:34,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:34,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:08:49,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:49,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172330957] [2024-11-24 00:08:49,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172330957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:49,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:49,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:08:49,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046851915] [2024-11-24 00:08:49,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:49,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:08:49,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:49,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:08:49,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:08:49,485 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:09:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:03,230 INFO L93 Difference]: Finished difference Result 432 states and 638 transitions. [2024-11-24 00:09:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 00:09:03,232 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-11-24 00:09:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:03,234 INFO L225 Difference]: With dead ends: 432 [2024-11-24 00:09:03,234 INFO L226 Difference]: Without dead ends: 430 [2024-11-24 00:09:03,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=381, Invalid=1025, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:09:03,237 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 314 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:03,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 932 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 00:09:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-24 00:09:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 386. [2024-11-24 00:09:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 273 states have (on average 1.3663003663003663) internal successors, (373), 273 states have internal predecessors, (373), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:09:03,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2024-11-24 00:09:03,268 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 178 [2024-11-24 00:09:03,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:03,269 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2024-11-24 00:09:03,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:09:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2024-11-24 00:09:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 00:09:03,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:03,270 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:03,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:09:03,271 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:03,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:03,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1602503561, now seen corresponding path program 1 times [2024-11-24 00:09:03,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:03,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095661241] [2024-11-24 00:09:03,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:03,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:09:16,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:16,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095661241] [2024-11-24 00:09:16,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095661241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:16,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:16,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 00:09:16,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447045412] [2024-11-24 00:09:16,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:16,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 00:09:16,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:16,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 00:09:16,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:09:16,359 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:09:28,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:28,082 INFO L93 Difference]: Finished difference Result 427 states and 633 transitions. [2024-11-24 00:09:28,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:09:28,083 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2024-11-24 00:09:28,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:28,085 INFO L225 Difference]: With dead ends: 427 [2024-11-24 00:09:28,085 INFO L226 Difference]: Without dead ends: 425 [2024-11-24 00:09:28,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=370, Invalid=1036, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:09:28,086 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 229 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:28,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1134 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 00:09:28,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-24 00:09:28,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 386. [2024-11-24 00:09:28,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 273 states have (on average 1.3663003663003663) internal successors, (373), 273 states have internal predecessors, (373), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:09:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2024-11-24 00:09:28,119 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 178 [2024-11-24 00:09:28,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:28,119 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2024-11-24 00:09:28,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:09:28,120 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2024-11-24 00:09:28,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 00:09:28,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:28,121 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:28,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:09:28,121 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:28,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:28,121 INFO L85 PathProgramCache]: Analyzing trace with hash 41500655, now seen corresponding path program 1 times [2024-11-24 00:09:28,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:28,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024317335] [2024-11-24 00:09:28,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:28,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:48,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:09:48,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:48,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024317335] [2024-11-24 00:09:48,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024317335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:48,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:48,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 00:09:48,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659184519] [2024-11-24 00:09:48,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:48,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:09:48,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:48,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:09:48,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:09:48,890 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 00:10:06,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:06,083 INFO L93 Difference]: Finished difference Result 422 states and 627 transitions. [2024-11-24 00:10:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:10:06,084 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 178 [2024-11-24 00:10:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:06,086 INFO L225 Difference]: With dead ends: 422 [2024-11-24 00:10:06,086 INFO L226 Difference]: Without dead ends: 420 [2024-11-24 00:10:06,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=389, Invalid=1093, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 00:10:06,088 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 216 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:06,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1246 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-24 00:10:06,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-24 00:10:06,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 384. [2024-11-24 00:10:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 271 states have (on average 1.3653136531365313) internal successors, (370), 271 states have internal predecessors, (370), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:10:06,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 586 transitions. [2024-11-24 00:10:06,120 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 586 transitions. Word has length 178 [2024-11-24 00:10:06,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:06,120 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 586 transitions. [2024-11-24 00:10:06,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 00:10:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 586 transitions. [2024-11-24 00:10:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 00:10:06,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:06,122 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:06,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:10:06,122 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:06,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:06,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1787254525, now seen corresponding path program 1 times [2024-11-24 00:10:06,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:06,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624968923] [2024-11-24 00:10:06,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:06,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:25,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:10:25,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:25,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624968923] [2024-11-24 00:10:25,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624968923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:25,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:25,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:10:25,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194505235] [2024-11-24 00:10:25,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:25,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:10:25,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:25,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:10:25,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:10:25,049 INFO L87 Difference]: Start difference. First operand 384 states and 586 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:10:56,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:56,367 INFO L93 Difference]: Finished difference Result 433 states and 639 transitions. [2024-11-24 00:10:56,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-24 00:10:56,368 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 179 [2024-11-24 00:10:56,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:56,371 INFO L225 Difference]: With dead ends: 433 [2024-11-24 00:10:56,371 INFO L226 Difference]: Without dead ends: 431 [2024-11-24 00:10:56,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=525, Invalid=1367, Unknown=0, NotChecked=0, Total=1892 [2024-11-24 00:10:56,372 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 265 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:56,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 950 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-24 00:10:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-24 00:10:56,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 384. [2024-11-24 00:10:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 271 states have (on average 1.3653136531365313) internal successors, (370), 271 states have internal predecessors, (370), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 00:10:56,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 586 transitions. [2024-11-24 00:10:56,402 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 586 transitions. Word has length 179 [2024-11-24 00:10:56,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:56,402 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 586 transitions. [2024-11-24 00:10:56,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-24 00:10:56,403 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 586 transitions. [2024-11-24 00:10:56,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 00:10:56,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:56,404 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:56,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:10:56,404 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:56,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:56,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1806648193, now seen corresponding path program 1 times [2024-11-24 00:10:56,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:56,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664544572] [2024-11-24 00:10:56,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:56,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-24 00:11:13,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:13,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664544572] [2024-11-24 00:11:13,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664544572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:13,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:13,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 00:11:13,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632847643] [2024-11-24 00:11:13,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:13,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:11:13,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:13,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:11:13,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:11:13,221 INFO L87 Difference]: Start difference. First operand 384 states and 586 transitions. Second operand has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:11:47,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:47,032 INFO L93 Difference]: Finished difference Result 609 states and 890 transitions. [2024-11-24 00:11:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-24 00:11:47,032 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 179 [2024-11-24 00:11:47,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:47,035 INFO L225 Difference]: With dead ends: 609 [2024-11-24 00:11:47,035 INFO L226 Difference]: Without dead ends: 607 [2024-11-24 00:11:47,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 31.6s TimeCoverageRelationStatistics Valid=518, Invalid=1552, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 00:11:47,036 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 456 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:47,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 2142 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2024-11-24 00:11:47,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-24 00:11:47,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 474. [2024-11-24 00:11:47,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 333 states have (on average 1.3633633633633633) internal successors, (454), 333 states have internal predecessors, (454), 135 states have call successors, (135), 5 states have call predecessors, (135), 5 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-24 00:11:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 724 transitions. [2024-11-24 00:11:47,087 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 724 transitions. Word has length 179 [2024-11-24 00:11:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:47,087 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 724 transitions. [2024-11-24 00:11:47,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 00:11:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 724 transitions. [2024-11-24 00:11:47,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-24 00:11:47,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:47,091 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:47,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:11:47,091 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:47,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:47,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1926652726, now seen corresponding path program 1 times [2024-11-24 00:11:47,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:47,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130629352] [2024-11-24 00:11:47,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:47,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:01,105 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 5 proven. 58 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-24 00:12:01,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:01,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130629352] [2024-11-24 00:12:01,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130629352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:01,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784392891] [2024-11-24 00:12:01,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:01,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:01,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:01,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:01,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:12:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:01,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:12:01,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:01,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 388 proven. 3 refuted. 0 times theorem prover too weak. 5396 trivial. 0 not checked. [2024-11-24 00:12:01,631 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:01,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784392891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:01,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:12:01,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5] total 20 [2024-11-24 00:12:01,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693853047] [2024-11-24 00:12:01,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:01,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 00:12:01,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:01,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 00:12:01,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:12:01,901 INFO L87 Difference]: Start difference. First operand 474 states and 724 transitions. Second operand has 20 states, 20 states have (on average 7.15) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2024-11-24 00:12:18,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:18,072 INFO L93 Difference]: Finished difference Result 1380 states and 2042 transitions. [2024-11-24 00:12:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-24 00:12:18,073 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.15) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) Word has length 347 [2024-11-24 00:12:18,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:18,077 INFO L225 Difference]: With dead ends: 1380 [2024-11-24 00:12:18,077 INFO L226 Difference]: Without dead ends: 974 [2024-11-24 00:12:18,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=355, Invalid=1807, Unknown=0, NotChecked=0, Total=2162 [2024-11-24 00:12:18,080 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 754 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:18,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1716 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-24 00:12:18,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-11-24 00:12:18,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 797. [2024-11-24 00:12:18,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 564 states have (on average 1.3457446808510638) internal successors, (759), 564 states have internal predecessors, (759), 216 states have call successors, (216), 16 states have call predecessors, (216), 16 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2024-11-24 00:12:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1191 transitions. [2024-11-24 00:12:18,191 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1191 transitions. Word has length 347 [2024-11-24 00:12:18,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:18,191 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1191 transitions. [2024-11-24 00:12:18,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.15) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2024-11-24 00:12:18,192 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1191 transitions. [2024-11-24 00:12:18,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-24 00:12:18,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:18,195 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:18,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:12:18,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-24 00:12:18,396 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:18,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash 705526142, now seen corresponding path program 1 times [2024-11-24 00:12:18,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:18,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583407571] [2024-11-24 00:12:18,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:18,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-24 00:12:27,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:27,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583407571] [2024-11-24 00:12:27,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583407571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:27,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394132762] [2024-11-24 00:12:27,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:27,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:27,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:28,000 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:28,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ddab204-9dc9-48a4-9615-9c2e7f072555/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:12:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:28,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-24 00:12:28,323 INFO L279 TraceCheckSpWp]: Computing forward predicates...