./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-82.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-82.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfbf8f6b1ea318b377c7ec3dac9bd2d1bbf868456f133ef2b462cef256459a4f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:29:06,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:29:06,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:29:06,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:29:06,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:29:06,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:29:06,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:29:06,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:29:06,521 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:29:06,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:29:06,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:29:06,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:29:06,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:29:06,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:29:06,522 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:29:06,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:29:06,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:29:06,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:29:06,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:29:06,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:29:06,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:29:06,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:29:06,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:29:06,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:29:06,524 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:29:06,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:29:06,524 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:29:06,524 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:29:06,524 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:29:06,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:06,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:06,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:06,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:06,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:29:06,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:06,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:06,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:06,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:06,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:29:06,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:29:06,526 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:29:06,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:29:06,526 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:29:06,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:29:06,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:29:06,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:29:06,527 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:29:06,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:29:06,527 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_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfbf8f6b1ea318b377c7ec3dac9bd2d1bbf868456f133ef2b462cef256459a4f [2024-11-28 04:29:06,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:29:06,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:29:06,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:29:06,938 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:29:06,939 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:29:06,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-82.i [2024-11-28 04:29:10,849 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/data/4a4474e4e/757fb60ff8234116a1386b12d61f2b67/FLAG8845cf94e [2024-11-28 04:29:11,365 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:29:11,366 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-82.i [2024-11-28 04:29:11,384 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/data/4a4474e4e/757fb60ff8234116a1386b12d61f2b67/FLAG8845cf94e [2024-11-28 04:29:11,453 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/data/4a4474e4e/757fb60ff8234116a1386b12d61f2b67 [2024-11-28 04:29:11,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:29:11,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:29:11,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:11,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:29:11,467 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:29:11,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d30c7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11, skipping insertion in model container [2024-11-28 04:29:11,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:29:11,754 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_550b8740-5eec-4406-b4e2-12f8f2e85f8c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-82.i[916,929] [2024-11-28 04:29:12,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:12,072 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:29:12,084 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_550b8740-5eec-4406-b4e2-12f8f2e85f8c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-82.i[916,929] [2024-11-28 04:29:12,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:12,243 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:29:12,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12 WrapperNode [2024-11-28 04:29:12,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:12,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:12,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:29:12,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:29:12,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,387 INFO L138 Inliner]: procedures = 26, calls = 106, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 833 [2024-11-28 04:29:12,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:12,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:29:12,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:29:12,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:29:12,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,472 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:29:12,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,508 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:29:12,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:29:12,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:29:12,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:29:12,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:12,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:12,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:29:12,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550b8740-5eec-4406-b4e2-12f8f2e85f8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:29:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:29:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:29:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:29:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:29:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:29:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:29:12,922 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:29:12,924 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:29:15,197 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-28 04:29:15,198 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:29:15,232 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:29:15,236 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:29:15,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:15 BoogieIcfgContainer [2024-11-28 04:29:15,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:29:15,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:29:15,247 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:29:15,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:29:15,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:29:11" (1/3) ... [2024-11-28 04:29:15,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b86e22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:15, skipping insertion in model container [2024-11-28 04:29:15,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (2/3) ... [2024-11-28 04:29:15,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b86e22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:15, skipping insertion in model container [2024-11-28 04:29:15,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:15" (3/3) ... [2024-11-28 04:29:15,261 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-82.i [2024-11-28 04:29:15,283 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:29:15,290 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-82.i that has 2 procedures, 347 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:29:15,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:29:15,446 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;@62415e49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:29:15,447 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:29:15,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 251 states have (on average 1.6334661354581674) internal successors, (410), 252 states have internal predecessors, (410), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:29:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2024-11-28 04:29:15,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:15,515 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:15,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:15,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:15,527 INFO L85 PathProgramCache]: Analyzing trace with hash -827577262, now seen corresponding path program 1 times [2024-11-28 04:29:15,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:15,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937536148] [2024-11-28 04:29:15,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:15,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:17,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:17,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937536148] [2024-11-28 04:29:17,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937536148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:17,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:17,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:29:17,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853577254] [2024-11-28 04:29:17,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:17,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:29:17,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:17,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:29:17,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:29:17,211 INFO L87 Difference]: Start difference. First operand has 347 states, 251 states have (on average 1.6334661354581674) internal successors, (410), 252 states have internal predecessors, (410), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:17,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:17,340 INFO L93 Difference]: Finished difference Result 683 states and 1272 transitions. [2024-11-28 04:29:17,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:29:17,345 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 605 [2024-11-28 04:29:17,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:17,370 INFO L225 Difference]: With dead ends: 683 [2024-11-28 04:29:17,370 INFO L226 Difference]: Without dead ends: 339 [2024-11-28 04:29:17,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:29:17,386 INFO L435 NwaCegarLoop]: 580 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, 580 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:17,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:17,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-28 04:29:17,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-28 04:29:17,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 244 states have (on average 1.6147540983606556) internal successors, (394), 244 states have internal predecessors, (394), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:29:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 580 transitions. [2024-11-28 04:29:17,547 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 580 transitions. Word has length 605 [2024-11-28 04:29:17,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:17,555 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 580 transitions. [2024-11-28 04:29:17,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:17,556 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 580 transitions. [2024-11-28 04:29:17,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2024-11-28 04:29:17,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:17,585 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:17,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:29:17,586 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:17,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:17,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1071130384, now seen corresponding path program 1 times [2024-11-28 04:29:17,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:17,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893025609] [2024-11-28 04:29:17,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:17,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:18,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:18,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893025609] [2024-11-28 04:29:18,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893025609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:18,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:18,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:18,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647251000] [2024-11-28 04:29:18,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:18,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:18,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:18,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:18,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:18,819 INFO L87 Difference]: Start difference. First operand 339 states and 580 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:19,071 INFO L93 Difference]: Finished difference Result 1010 states and 1732 transitions. [2024-11-28 04:29:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:19,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 606 [2024-11-28 04:29:19,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:19,094 INFO L225 Difference]: With dead ends: 1010 [2024-11-28 04:29:19,094 INFO L226 Difference]: Without dead ends: 674 [2024-11-28 04:29:19,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:19,100 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 561 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:19,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1138 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:19,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-28 04:29:19,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 672. [2024-11-28 04:29:19,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 483 states have (on average 1.6066252587991718) internal successors, (776), 483 states have internal predecessors, (776), 186 states have call successors, (186), 2 states have call predecessors, (186), 2 states have return successors, (186), 186 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-28 04:29:19,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1148 transitions. [2024-11-28 04:29:19,313 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1148 transitions. Word has length 606 [2024-11-28 04:29:19,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:19,321 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 1148 transitions. [2024-11-28 04:29:19,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:19,322 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1148 transitions. [2024-11-28 04:29:19,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2024-11-28 04:29:19,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:19,358 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:19,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:29:19,358 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:19,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:19,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1140743828, now seen corresponding path program 1 times [2024-11-28 04:29:19,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:19,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928417319] [2024-11-28 04:29:19,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:19,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:20,085 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:20,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:20,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928417319] [2024-11-28 04:29:20,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928417319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:20,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:20,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:20,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969080011] [2024-11-28 04:29:20,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:20,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:20,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:20,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:20,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:20,093 INFO L87 Difference]: Start difference. First operand 672 states and 1148 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:20,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:20,320 INFO L93 Difference]: Finished difference Result 1998 states and 3417 transitions. [2024-11-28 04:29:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:20,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 606 [2024-11-28 04:29:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:20,346 INFO L225 Difference]: With dead ends: 1998 [2024-11-28 04:29:20,347 INFO L226 Difference]: Without dead ends: 1329 [2024-11-28 04:29:20,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:20,355 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 570 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:20,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1149 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:20,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-28 04:29:20,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1325. [2024-11-28 04:29:20,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 948 states have (on average 1.5981012658227849) internal successors, (1515), 948 states have internal predecessors, (1515), 372 states have call successors, (372), 4 states have call predecessors, (372), 4 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-28 04:29:20,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 2259 transitions. [2024-11-28 04:29:20,693 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 2259 transitions. Word has length 606 [2024-11-28 04:29:20,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:20,695 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 2259 transitions. [2024-11-28 04:29:20,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 2259 transitions. [2024-11-28 04:29:20,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:29:20,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:20,710 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:20,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:29:20,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:20,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:20,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1216228947, now seen corresponding path program 1 times [2024-11-28 04:29:20,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:20,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013502310] [2024-11-28 04:29:20,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:20,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:21,328 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:21,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:21,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013502310] [2024-11-28 04:29:21,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013502310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:21,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:21,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:21,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597003603] [2024-11-28 04:29:21,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:21,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:21,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:21,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:21,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:21,336 INFO L87 Difference]: Start difference. First operand 1325 states and 2259 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:21,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:21,578 INFO L93 Difference]: Finished difference Result 2743 states and 4686 transitions. [2024-11-28 04:29:21,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:21,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 607 [2024-11-28 04:29:21,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:21,602 INFO L225 Difference]: With dead ends: 2743 [2024-11-28 04:29:21,602 INFO L226 Difference]: Without dead ends: 1421 [2024-11-28 04:29:21,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:21,614 INFO L435 NwaCegarLoop]: 1064 mSDtfsCounter, 552 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:21,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1631 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:21,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-28 04:29:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1417. [2024-11-28 04:29:21,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1040 states have (on average 1.6067307692307693) internal successors, (1671), 1040 states have internal predecessors, (1671), 372 states have call successors, (372), 4 states have call predecessors, (372), 4 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-28 04:29:21,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 2415 transitions. [2024-11-28 04:29:21,827 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 2415 transitions. Word has length 607 [2024-11-28 04:29:21,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:21,829 INFO L471 AbstractCegarLoop]: Abstraction has 1417 states and 2415 transitions. [2024-11-28 04:29:21,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:21,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 2415 transitions. [2024-11-28 04:29:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:29:21,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:21,840 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:21,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:29:21,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:21,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:21,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1356777557, now seen corresponding path program 1 times [2024-11-28 04:29:21,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:21,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819637408] [2024-11-28 04:29:21,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:21,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:22,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:22,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819637408] [2024-11-28 04:29:22,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819637408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:22,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:22,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:22,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877700586] [2024-11-28 04:29:22,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:22,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:22,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:22,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:22,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:22,365 INFO L87 Difference]: Start difference. First operand 1417 states and 2415 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:22,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:22,674 INFO L93 Difference]: Finished difference Result 4161 states and 7095 transitions. [2024-11-28 04:29:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:22,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 607 [2024-11-28 04:29:22,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:22,700 INFO L225 Difference]: With dead ends: 4161 [2024-11-28 04:29:22,700 INFO L226 Difference]: Without dead ends: 2747 [2024-11-28 04:29:22,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:22,709 INFO L435 NwaCegarLoop]: 1006 mSDtfsCounter, 533 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:22,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1580 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:22,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2024-11-28 04:29:23,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 1615. [2024-11-28 04:29:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1238 states have (on average 1.635702746365105) internal successors, (2025), 1238 states have internal predecessors, (2025), 372 states have call successors, (372), 4 states have call predecessors, (372), 4 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-28 04:29:23,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2769 transitions. [2024-11-28 04:29:23,166 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2769 transitions. Word has length 607 [2024-11-28 04:29:23,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:23,169 INFO L471 AbstractCegarLoop]: Abstraction has 1615 states and 2769 transitions. [2024-11-28 04:29:23,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:23,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2769 transitions. [2024-11-28 04:29:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:29:23,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:23,184 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:23,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:29:23,185 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:23,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1575632275, now seen corresponding path program 1 times [2024-11-28 04:29:23,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:23,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017810797] [2024-11-28 04:29:23,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:23,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:23,758 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:23,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:23,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017810797] [2024-11-28 04:29:23,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017810797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:23,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:23,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:23,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931668109] [2024-11-28 04:29:23,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:23,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:23,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:23,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:23,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:23,766 INFO L87 Difference]: Start difference. First operand 1615 states and 2769 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:24,100 INFO L93 Difference]: Finished difference Result 4379 states and 7533 transitions. [2024-11-28 04:29:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:24,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 607 [2024-11-28 04:29:24,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:24,133 INFO L225 Difference]: With dead ends: 4379 [2024-11-28 04:29:24,133 INFO L226 Difference]: Without dead ends: 2767 [2024-11-28 04:29:24,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:24,143 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 326 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:24,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1138 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:24,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2024-11-28 04:29:24,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2761. [2024-11-28 04:29:24,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2256 states have (on average 1.6586879432624113) internal successors, (3742), 2260 states have internal predecessors, (3742), 496 states have call successors, (496), 8 states have call predecessors, (496), 8 states have return successors, (496), 492 states have call predecessors, (496), 496 states have call successors, (496) [2024-11-28 04:29:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 4734 transitions. [2024-11-28 04:29:24,614 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 4734 transitions. Word has length 607 [2024-11-28 04:29:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:24,618 INFO L471 AbstractCegarLoop]: Abstraction has 2761 states and 4734 transitions. [2024-11-28 04:29:24,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:24,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 4734 transitions. [2024-11-28 04:29:24,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:29:24,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:24,628 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:24,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:29:24,629 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:24,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:24,630 INFO L85 PathProgramCache]: Analyzing trace with hash 757983825, now seen corresponding path program 1 times [2024-11-28 04:29:24,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:24,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807021396] [2024-11-28 04:29:24,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:24,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:25,080 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:25,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:25,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807021396] [2024-11-28 04:29:25,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807021396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:25,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:25,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:25,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498478581] [2024-11-28 04:29:25,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:25,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:25,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:25,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:25,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:25,084 INFO L87 Difference]: Start difference. First operand 2761 states and 4734 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:25,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:25,622 INFO L93 Difference]: Finished difference Result 7569 states and 12944 transitions. [2024-11-28 04:29:25,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:25,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 607 [2024-11-28 04:29:25,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:25,663 INFO L225 Difference]: With dead ends: 7569 [2024-11-28 04:29:25,663 INFO L226 Difference]: Without dead ends: 4811 [2024-11-28 04:29:25,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:25,674 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 335 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:25,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 1337 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:25,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4811 states. [2024-11-28 04:29:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4811 to 4805. [2024-11-28 04:29:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4805 states, 3884 states have (on average 1.643666323377961) internal successors, (6384), 3896 states have internal predecessors, (6384), 904 states have call successors, (904), 16 states have call predecessors, (904), 16 states have return successors, (904), 892 states have call predecessors, (904), 904 states have call successors, (904) [2024-11-28 04:29:26,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4805 states to 4805 states and 8192 transitions. [2024-11-28 04:29:26,468 INFO L78 Accepts]: Start accepts. Automaton has 4805 states and 8192 transitions. Word has length 607 [2024-11-28 04:29:26,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:26,469 INFO L471 AbstractCegarLoop]: Abstraction has 4805 states and 8192 transitions. [2024-11-28 04:29:26,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:26,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4805 states and 8192 transitions. [2024-11-28 04:29:26,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:29:26,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:26,484 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:26,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:29:26,484 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:26,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:26,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1952028271, now seen corresponding path program 1 times [2024-11-28 04:29:26,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:26,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201017223] [2024-11-28 04:29:26,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:26,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:26,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:26,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201017223] [2024-11-28 04:29:26,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201017223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:26,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:26,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:26,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972341393] [2024-11-28 04:29:26,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:26,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:26,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:26,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:26,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:26,940 INFO L87 Difference]: Start difference. First operand 4805 states and 8192 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:27,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:27,882 INFO L93 Difference]: Finished difference Result 12089 states and 20382 transitions. [2024-11-28 04:29:27,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:27,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 607 [2024-11-28 04:29:27,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:27,969 INFO L225 Difference]: With dead ends: 12089 [2024-11-28 04:29:27,969 INFO L226 Difference]: Without dead ends: 7287 [2024-11-28 04:29:27,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:27,991 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 271 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:27,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1165 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:28,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7287 states. [2024-11-28 04:29:29,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7287 to 7281. [2024-11-28 04:29:29,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7281 states, 5520 states have (on average 1.5731884057971015) internal successors, (8684), 5548 states have internal predecessors, (8684), 1728 states have call successors, (1728), 32 states have call predecessors, (1728), 32 states have return successors, (1728), 1700 states have call predecessors, (1728), 1728 states have call successors, (1728) [2024-11-28 04:29:29,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7281 states to 7281 states and 12140 transitions. [2024-11-28 04:29:29,297 INFO L78 Accepts]: Start accepts. Automaton has 7281 states and 12140 transitions. Word has length 607 [2024-11-28 04:29:29,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:29,299 INFO L471 AbstractCegarLoop]: Abstraction has 7281 states and 12140 transitions. [2024-11-28 04:29:29,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:29,299 INFO L276 IsEmpty]: Start isEmpty. Operand 7281 states and 12140 transitions. [2024-11-28 04:29:29,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:29:29,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:29,316 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:29,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:29:29,316 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:29,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:29,317 INFO L85 PathProgramCache]: Analyzing trace with hash 754591123, now seen corresponding path program 1 times [2024-11-28 04:29:29,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:29,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360963649] [2024-11-28 04:29:29,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:29,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:29,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:29,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360963649] [2024-11-28 04:29:29,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360963649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:29,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:29,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:29,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9507304] [2024-11-28 04:29:29,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:29,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:29,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:29,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:29,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:29,739 INFO L87 Difference]: Start difference. First operand 7281 states and 12140 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:30,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:30,995 INFO L93 Difference]: Finished difference Result 21789 states and 36334 transitions. [2024-11-28 04:29:30,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:30,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 607 [2024-11-28 04:29:30,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:31,126 INFO L225 Difference]: With dead ends: 21789 [2024-11-28 04:29:31,127 INFO L226 Difference]: Without dead ends: 14511 [2024-11-28 04:29:31,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:31,155 INFO L435 NwaCegarLoop]: 1116 mSDtfsCounter, 571 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:31,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1690 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:31,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14511 states. [2024-11-28 04:29:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14511 to 14509. [2024-11-28 04:29:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14509 states, 10988 states have (on average 1.5686203130688023) internal successors, (17236), 11044 states have internal predecessors, (17236), 3456 states have call successors, (3456), 64 states have call predecessors, (3456), 64 states have return successors, (3456), 3400 states have call predecessors, (3456), 3456 states have call successors, (3456) [2024-11-28 04:29:33,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14509 states to 14509 states and 24148 transitions. [2024-11-28 04:29:33,401 INFO L78 Accepts]: Start accepts. Automaton has 14509 states and 24148 transitions. Word has length 607 [2024-11-28 04:29:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:33,402 INFO L471 AbstractCegarLoop]: Abstraction has 14509 states and 24148 transitions. [2024-11-28 04:29:33,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 14509 states and 24148 transitions. [2024-11-28 04:29:33,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:29:33,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:33,420 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:33,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:29:33,421 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:33,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash -525272555, now seen corresponding path program 1 times [2024-11-28 04:29:33,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:33,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646483846] [2024-11-28 04:29:33,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:33,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:35,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:35,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646483846] [2024-11-28 04:29:35,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646483846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:35,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:35,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:35,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648059664] [2024-11-28 04:29:35,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:35,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:35,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:35,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:35,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:35,069 INFO L87 Difference]: Start difference. First operand 14509 states and 24148 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:38,450 INFO L93 Difference]: Finished difference Result 39025 states and 64474 transitions. [2024-11-28 04:29:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:29:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 607 [2024-11-28 04:29:38,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:38,603 INFO L225 Difference]: With dead ends: 39025 [2024-11-28 04:29:38,603 INFO L226 Difference]: Without dead ends: 24519 [2024-11-28 04:29:38,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:38,664 INFO L435 NwaCegarLoop]: 1072 mSDtfsCounter, 1045 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:38,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 2959 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:29:38,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24519 states. [2024-11-28 04:29:42,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24519 to 20829. [2024-11-28 04:29:42,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20829 states, 15644 states have (on average 1.5492201482996677) internal successors, (24236), 15732 states have internal predecessors, (24236), 5056 states have call successors, (5056), 128 states have call predecessors, (5056), 128 states have return successors, (5056), 4968 states have call predecessors, (5056), 5056 states have call successors, (5056) [2024-11-28 04:29:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20829 states to 20829 states and 34348 transitions. [2024-11-28 04:29:42,160 INFO L78 Accepts]: Start accepts. Automaton has 20829 states and 34348 transitions. Word has length 607 [2024-11-28 04:29:42,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:42,162 INFO L471 AbstractCegarLoop]: Abstraction has 20829 states and 34348 transitions. [2024-11-28 04:29:42,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:42,163 INFO L276 IsEmpty]: Start isEmpty. Operand 20829 states and 34348 transitions. [2024-11-28 04:29:42,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:29:42,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:42,179 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:42,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:29:42,180 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:42,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:42,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1858652183, now seen corresponding path program 1 times [2024-11-28 04:29:42,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:42,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667143412] [2024-11-28 04:29:42,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:42,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:43,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:43,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667143412] [2024-11-28 04:29:43,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667143412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:43,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:43,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:43,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180447928] [2024-11-28 04:29:43,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:43,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:43,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:43,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:43,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:43,596 INFO L87 Difference]: Start difference. First operand 20829 states and 34348 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:50,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:50,374 INFO L93 Difference]: Finished difference Result 74685 states and 121908 transitions. [2024-11-28 04:29:50,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:50,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 607 [2024-11-28 04:29:50,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:50,868 INFO L225 Difference]: With dead ends: 74685 [2024-11-28 04:29:50,868 INFO L226 Difference]: Without dead ends: 53859 [2024-11-28 04:29:50,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:50,944 INFO L435 NwaCegarLoop]: 1045 mSDtfsCounter, 1044 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:50,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 2411 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:29:51,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53859 states. [2024-11-28 04:29:58,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53859 to 48349. [2024-11-28 04:29:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48349 states, 34700 states have (on average 1.5004610951008646) internal successors, (52066), 34980 states have internal predecessors, (52066), 13296 states have call successors, (13296), 352 states have call predecessors, (13296), 352 states have return successors, (13296), 13016 states have call predecessors, (13296), 13296 states have call successors, (13296) [2024-11-28 04:29:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48349 states to 48349 states and 78658 transitions. [2024-11-28 04:29:58,918 INFO L78 Accepts]: Start accepts. Automaton has 48349 states and 78658 transitions. Word has length 607 [2024-11-28 04:29:58,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:58,920 INFO L471 AbstractCegarLoop]: Abstraction has 48349 states and 78658 transitions. [2024-11-28 04:29:58,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:29:58,921 INFO L276 IsEmpty]: Start isEmpty. Operand 48349 states and 78658 transitions. [2024-11-28 04:29:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:29:58,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:58,964 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:58,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:29:58,965 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:58,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:58,966 INFO L85 PathProgramCache]: Analyzing trace with hash 847534933, now seen corresponding path program 1 times [2024-11-28 04:29:58,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:58,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18739732] [2024-11-28 04:29:58,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:58,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2024-11-28 04:29:59,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:59,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18739732] [2024-11-28 04:29:59,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18739732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:59,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:59,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:59,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140458519] [2024-11-28 04:29:59,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:59,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:59,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:59,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:59,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:59,956 INFO L87 Difference]: Start difference. First operand 48349 states and 78658 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:30:04,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:04,866 INFO L93 Difference]: Finished difference Result 112406 states and 183238 transitions. [2024-11-28 04:30:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:04,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 607 [2024-11-28 04:30:04,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:05,512 INFO L225 Difference]: With dead ends: 112406 [2024-11-28 04:30:05,512 INFO L226 Difference]: Without dead ends: 64060 [2024-11-28 04:30:05,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:05,643 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 360 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:05,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1150 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64060 states. [2024-11-28 04:30:12,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64060 to 64058. [2024-11-28 04:30:12,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64058 states, 46997 states have (on average 1.5149477626231462) internal successors, (71198), 47347 states have internal predecessors, (71198), 16620 states have call successors, (16620), 440 states have call predecessors, (16620), 440 states have return successors, (16620), 16270 states have call predecessors, (16620), 16620 states have call successors, (16620) [2024-11-28 04:30:12,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64058 states to 64058 states and 104438 transitions. [2024-11-28 04:30:12,555 INFO L78 Accepts]: Start accepts. Automaton has 64058 states and 104438 transitions. Word has length 607 [2024-11-28 04:30:12,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:12,556 INFO L471 AbstractCegarLoop]: Abstraction has 64058 states and 104438 transitions. [2024-11-28 04:30:12,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2024-11-28 04:30:12,557 INFO L276 IsEmpty]: Start isEmpty. Operand 64058 states and 104438 transitions. [2024-11-28 04:30:12,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-28 04:30:12,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:12,581 INFO L218 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:12,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:30:12,581 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:12,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:12,582 INFO L85 PathProgramCache]: Analyzing trace with hash -173423979, now seen corresponding path program 1 times [2024-11-28 04:30:12,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:12,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172870607] [2024-11-28 04:30:12,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:12,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat