./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.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_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/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_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/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_3a64b855-b78e-4a0c-ab10-4e6dfb305623/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 33e0a789597382a31147e3473eca939384c88c4f131feb04f2abaaba75adfc69 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:25:15,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:25:16,016 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:25:16,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:25:16,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:25:16,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:25:16,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:25:16,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:25:16,068 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:25:16,068 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:25:16,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:25:16,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:25:16,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:25:16,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:25:16,070 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:25:16,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:25:16,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:25:16,071 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:25:16,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:25:16,072 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:25:16,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:25:16,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:25:16,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:25:16,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:25:16,073 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:25:16,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:25:16,073 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:25:16,073 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:25:16,073 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:25:16,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:25:16,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:25:16,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:25:16,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:16,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:25:16,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:25:16,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:25:16,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:25:16,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:16,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:25:16,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:25:16,076 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:25:16,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:25:16,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:25:16,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:25:16,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:25:16,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:25:16,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:25:16,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:25:16,076 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_3a64b855-b78e-4a0c-ab10-4e6dfb305623/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 -> 33e0a789597382a31147e3473eca939384c88c4f131feb04f2abaaba75adfc69 [2024-11-27 23:25:16,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:25:16,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:25:16,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:25:16,402 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:25:16,402 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:25:16,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i [2024-11-27 23:25:19,426 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/data/e93438f87/c9e6f919f59f4963ab181077692c2178/FLAG50693c54c [2024-11-27 23:25:19,724 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:25:19,725 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i [2024-11-27 23:25:19,738 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/data/e93438f87/c9e6f919f59f4963ab181077692c2178/FLAG50693c54c [2024-11-27 23:25:19,752 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/data/e93438f87/c9e6f919f59f4963ab181077692c2178 [2024-11-27 23:25:19,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:25:19,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:25:19,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:25:19,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:25:19,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:25:19,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:25:19" (1/1) ... [2024-11-27 23:25:19,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b04832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:19, skipping insertion in model container [2024-11-27 23:25:19,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:25:19" (1/1) ... [2024-11-27 23:25:19,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:25:19,961 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_3a64b855-b78e-4a0c-ab10-4e6dfb305623/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i[916,929] [2024-11-27 23:25:20,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:25:20,193 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:25:20,201 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_3a64b855-b78e-4a0c-ab10-4e6dfb305623/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i[916,929] [2024-11-27 23:25:20,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:25:20,357 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:25:20,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20 WrapperNode [2024-11-27 23:25:20,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:25:20,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:25:20,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:25:20,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:25:20,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,487 INFO L138 Inliner]: procedures = 26, calls = 125, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 939 [2024-11-27 23:25:20,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:25:20,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:25:20,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:25:20,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:25:20,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,564 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]. [2024-11-27 23:25:20,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,605 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:25:20,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:25:20,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:25:20,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:25:20,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (1/1) ... [2024-11-27 23:25:20,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:20,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:20,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:25:20,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:25:20,962 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:25:20,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:25:22,751 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-27 23:25:22,752 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:25:22,779 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:25:22,783 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:25:22,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:25:22 BoogieIcfgContainer [2024-11-27 23:25:22,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:25:22,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:25:22,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:25:22,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:25:22,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:25:19" (1/3) ... [2024-11-27 23:25:22,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57029e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:25:22, skipping insertion in model container [2024-11-27 23:25:22,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:20" (2/3) ... [2024-11-27 23:25:22,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57029e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:25:22, skipping insertion in model container [2024-11-27 23:25:22,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:25:22" (3/3) ... [2024-11-27 23:25:22,799 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-30.i [2024-11-27 23:25:22,815 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:25:22,819 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-30.i that has 2 procedures, 380 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:25:22,912 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:25:22,925 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;@70009c90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:25:22,925 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:25:22,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 380 states, 265 states have (on average 1.5811320754716982) internal successors, (419), 266 states have internal predecessors, (419), 112 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-27 23:25:22,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-27 23:25:22,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:22,987 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:22,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:22,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:22,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1828025214, now seen corresponding path program 1 times [2024-11-27 23:25:23,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:23,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647416991] [2024-11-27 23:25:23,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:23,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 24642 trivial. 0 not checked. [2024-11-27 23:25:23,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:23,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647416991] [2024-11-27 23:25:23,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647416991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:23,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758588485] [2024-11-27 23:25:23,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:23,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:23,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:23,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:23,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:25:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:24,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:25:24,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:24,767 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24642 trivial. 0 not checked. [2024-11-27 23:25:24,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:24,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758588485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:24,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:24,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:25:24,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097655556] [2024-11-27 23:25:24,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:24,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:25:24,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:24,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:25:24,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:25:24,811 INFO L87 Difference]: Start difference. First operand has 380 states, 265 states have (on average 1.5811320754716982) internal successors, (419), 266 states have internal predecessors, (419), 112 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 2 states have call successors, (112) [2024-11-27 23:25:24,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:24,917 INFO L93 Difference]: Finished difference Result 753 states and 1392 transitions. [2024-11-27 23:25:24,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:25:24,921 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 2 states have call successors, (112) Word has length 724 [2024-11-27 23:25:24,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:24,931 INFO L225 Difference]: With dead ends: 753 [2024-11-27 23:25:24,932 INFO L226 Difference]: Without dead ends: 376 [2024-11-27 23:25:24,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 725 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:25:24,943 INFO L435 NwaCegarLoop]: 633 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, 633 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 [2024-11-27 23:25:24,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-27 23:25:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2024-11-27 23:25:25,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 262 states have (on average 1.5610687022900764) internal successors, (409), 262 states have internal predecessors, (409), 112 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-27 23:25:25,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 633 transitions. [2024-11-27 23:25:25,060 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 633 transitions. Word has length 724 [2024-11-27 23:25:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:25,060 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 633 transitions. [2024-11-27 23:25:25,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 2 states have call successors, (112) [2024-11-27 23:25:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 633 transitions. [2024-11-27 23:25:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-27 23:25:25,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:25,082 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:25,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:25:25,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a64b855-b78e-4a0c-ab10-4e6dfb305623/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:25,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:25,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:25,288 INFO L85 PathProgramCache]: Analyzing trace with hash 890886790, now seen corresponding path program 1 times [2024-11-27 23:25:25,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:25,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868146587] [2024-11-27 23:25:25,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:25,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:27,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:27,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868146587] [2024-11-27 23:25:27,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868146587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:27,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:27,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997501328] [2024-11-27 23:25:27,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:27,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:27,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:27,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:27,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:27,131 INFO L87 Difference]: Start difference. First operand 376 states and 633 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:27,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:27,841 INFO L93 Difference]: Finished difference Result 1123 states and 1895 transitions. [2024-11-27 23:25:27,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:27,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 724 [2024-11-27 23:25:27,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:27,858 INFO L225 Difference]: With dead ends: 1123 [2024-11-27 23:25:27,858 INFO L226 Difference]: Without dead ends: 750 [2024-11-27 23:25:27,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:27,862 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 433 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:27,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 1641 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:25:27,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-27 23:25:28,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 748. [2024-11-27 23:25:28,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 521 states have (on average 1.562380038387716) internal successors, (814), 521 states have internal predecessors, (814), 224 states have call successors, (224), 2 states have call predecessors, (224), 2 states have return successors, (224), 224 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-27 23:25:28,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1262 transitions. [2024-11-27 23:25:28,016 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1262 transitions. Word has length 724 [2024-11-27 23:25:28,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:28,018 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1262 transitions. [2024-11-27 23:25:28,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:28,019 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1262 transitions. [2024-11-27 23:25:28,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-27 23:25:28,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:28,041 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:28,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:25:28,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:28,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:28,043 INFO L85 PathProgramCache]: Analyzing trace with hash 917952392, now seen corresponding path program 1 times [2024-11-27 23:25:28,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:28,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820881646] [2024-11-27 23:25:28,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:28,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:28,576 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:28,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:28,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820881646] [2024-11-27 23:25:28,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820881646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:28,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:28,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:28,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185411573] [2024-11-27 23:25:28,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:28,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:28,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:28,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:28,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:28,583 INFO L87 Difference]: Start difference. First operand 748 states and 1262 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:28,740 INFO L93 Difference]: Finished difference Result 1989 states and 3343 transitions. [2024-11-27 23:25:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:28,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 724 [2024-11-27 23:25:28,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:28,756 INFO L225 Difference]: With dead ends: 1989 [2024-11-27 23:25:28,757 INFO L226 Difference]: Without dead ends: 1244 [2024-11-27 23:25:28,760 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 [2024-11-27 23:25:28,762 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 400 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:28,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1244 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2024-11-27 23:25:28,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1240. [2024-11-27 23:25:28,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 845 states have (on average 1.5349112426035503) internal successors, (1297), 847 states have internal predecessors, (1297), 390 states have call successors, (390), 4 states have call predecessors, (390), 4 states have return successors, (390), 388 states have call predecessors, (390), 390 states have call successors, (390) [2024-11-27 23:25:28,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 2077 transitions. [2024-11-27 23:25:28,994 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 2077 transitions. Word has length 724 [2024-11-27 23:25:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:28,996 INFO L471 AbstractCegarLoop]: Abstraction has 1240 states and 2077 transitions. [2024-11-27 23:25:28,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:28,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 2077 transitions. [2024-11-27 23:25:29,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-27 23:25:29,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:29,017 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:29,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:25:29,017 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:29,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:29,019 INFO L85 PathProgramCache]: Analyzing trace with hash -252784440, now seen corresponding path program 1 times [2024-11-27 23:25:29,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:29,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326955170] [2024-11-27 23:25:29,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:29,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:29,531 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:29,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:29,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326955170] [2024-11-27 23:25:29,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326955170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:29,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:29,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:29,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508691740] [2024-11-27 23:25:29,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:29,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:29,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:29,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:29,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:29,537 INFO L87 Difference]: Start difference. First operand 1240 states and 2077 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:29,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:29,732 INFO L93 Difference]: Finished difference Result 3401 states and 5692 transitions. [2024-11-27 23:25:29,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:29,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 724 [2024-11-27 23:25:29,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:29,755 INFO L225 Difference]: With dead ends: 3401 [2024-11-27 23:25:29,755 INFO L226 Difference]: Without dead ends: 2164 [2024-11-27 23:25:29,760 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 [2024-11-27 23:25:29,762 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 368 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:29,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1431 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:29,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2024-11-27 23:25:30,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2158. [2024-11-27 23:25:30,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2158 states, 1487 states have (on average 1.535305985205111) internal successors, (2283), 1493 states have internal predecessors, (2283), 662 states have call successors, (662), 8 states have call predecessors, (662), 8 states have return successors, (662), 656 states have call predecessors, (662), 662 states have call successors, (662) [2024-11-27 23:25:30,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2158 states to 2158 states and 3607 transitions. [2024-11-27 23:25:30,094 INFO L78 Accepts]: Start accepts. Automaton has 2158 states and 3607 transitions. Word has length 724 [2024-11-27 23:25:30,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:30,095 INFO L471 AbstractCegarLoop]: Abstraction has 2158 states and 3607 transitions. [2024-11-27 23:25:30,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:30,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2158 states and 3607 transitions. [2024-11-27 23:25:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-27 23:25:30,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:30,105 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:30,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:25:30,105 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:30,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:30,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1147910086, now seen corresponding path program 1 times [2024-11-27 23:25:30,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:30,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601429342] [2024-11-27 23:25:30,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:30,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:30,632 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:30,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:30,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601429342] [2024-11-27 23:25:30,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601429342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:30,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:30,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:30,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139113749] [2024-11-27 23:25:30,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:30,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:30,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:30,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:30,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:30,635 INFO L87 Difference]: Start difference. First operand 2158 states and 3607 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:30,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:30,915 INFO L93 Difference]: Finished difference Result 5596 states and 9377 transitions. [2024-11-27 23:25:30,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:30,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-27 23:25:30,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:30,942 INFO L225 Difference]: With dead ends: 5596 [2024-11-27 23:25:30,942 INFO L226 Difference]: Without dead ends: 3441 [2024-11-27 23:25:30,950 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 [2024-11-27 23:25:30,951 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 306 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:30,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1339 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:30,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2024-11-27 23:25:31,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 3431. [2024-11-27 23:25:31,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3431 states, 2608 states have (on average 1.5858895705521472) internal successors, (4136), 2622 states have internal predecessors, (4136), 806 states have call successors, (806), 16 states have call predecessors, (806), 16 states have return successors, (806), 792 states have call predecessors, (806), 806 states have call successors, (806) [2024-11-27 23:25:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 5748 transitions. [2024-11-27 23:25:31,360 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 5748 transitions. Word has length 725 [2024-11-27 23:25:31,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:31,362 INFO L471 AbstractCegarLoop]: Abstraction has 3431 states and 5748 transitions. [2024-11-27 23:25:31,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 5748 transitions. [2024-11-27 23:25:31,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-27 23:25:31,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:31,373 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:31,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:25:31,373 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:31,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:31,374 INFO L85 PathProgramCache]: Analyzing trace with hash 638436996, now seen corresponding path program 1 times [2024-11-27 23:25:31,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:31,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320094283] [2024-11-27 23:25:31,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:31,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:31,814 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:31,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:31,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320094283] [2024-11-27 23:25:31,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320094283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:31,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:31,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:31,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372986487] [2024-11-27 23:25:31,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:31,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:31,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:31,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:31,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:31,819 INFO L87 Difference]: Start difference. First operand 3431 states and 5748 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:32,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:32,250 INFO L93 Difference]: Finished difference Result 10287 states and 17238 transitions. [2024-11-27 23:25:32,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:32,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-27 23:25:32,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:32,293 INFO L225 Difference]: With dead ends: 10287 [2024-11-27 23:25:32,293 INFO L226 Difference]: Without dead ends: 6859 [2024-11-27 23:25:32,303 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 [2024-11-27 23:25:32,304 INFO L435 NwaCegarLoop]: 1182 mSDtfsCounter, 613 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1807 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 [2024-11-27 23:25:32,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1807 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:32,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2024-11-27 23:25:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 6857. [2024-11-27 23:25:33,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6857 states, 5212 states have (on average 1.5771297006907137) internal successors, (8220), 5240 states have internal predecessors, (8220), 1612 states have call successors, (1612), 32 states have call predecessors, (1612), 32 states have return successors, (1612), 1584 states have call predecessors, (1612), 1612 states have call successors, (1612) [2024-11-27 23:25:33,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6857 states to 6857 states and 11444 transitions. [2024-11-27 23:25:33,119 INFO L78 Accepts]: Start accepts. Automaton has 6857 states and 11444 transitions. Word has length 725 [2024-11-27 23:25:33,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:33,122 INFO L471 AbstractCegarLoop]: Abstraction has 6857 states and 11444 transitions. [2024-11-27 23:25:33,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand 6857 states and 11444 transitions. [2024-11-27 23:25:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-27 23:25:33,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:33,141 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:33,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:25:33,141 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:33,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:33,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1355707710, now seen corresponding path program 1 times [2024-11-27 23:25:33,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:33,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652978720] [2024-11-27 23:25:33,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:33,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:33,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:33,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652978720] [2024-11-27 23:25:33,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652978720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:33,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:33,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:33,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444658272] [2024-11-27 23:25:33,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:33,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:33,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:33,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:33,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:33,937 INFO L87 Difference]: Start difference. First operand 6857 states and 11444 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:35,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:35,141 INFO L93 Difference]: Finished difference Result 17157 states and 28632 transitions. [2024-11-27 23:25:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:35,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-27 23:25:35,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:35,231 INFO L225 Difference]: With dead ends: 17157 [2024-11-27 23:25:35,231 INFO L226 Difference]: Without dead ends: 10303 [2024-11-27 23:25:35,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:35,253 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 388 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:35,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1632 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:25:35,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2024-11-27 23:25:36,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 10301. [2024-11-27 23:25:36,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10301 states, 7834 states have (on average 1.5749297932090887) internal successors, (12338), 7876 states have internal predecessors, (12338), 2418 states have call successors, (2418), 48 states have call predecessors, (2418), 48 states have return successors, (2418), 2376 states have call predecessors, (2418), 2418 states have call successors, (2418) [2024-11-27 23:25:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10301 states to 10301 states and 17174 transitions. [2024-11-27 23:25:36,519 INFO L78 Accepts]: Start accepts. Automaton has 10301 states and 17174 transitions. Word has length 725 [2024-11-27 23:25:36,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:36,520 INFO L471 AbstractCegarLoop]: Abstraction has 10301 states and 17174 transitions. [2024-11-27 23:25:36,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 10301 states and 17174 transitions. [2024-11-27 23:25:36,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-27 23:25:36,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:36,543 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:36,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:25:36,544 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:36,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:36,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1428094268, now seen corresponding path program 1 times [2024-11-27 23:25:36,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:36,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030630032] [2024-11-27 23:25:36,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:36,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:37,390 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:37,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:37,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030630032] [2024-11-27 23:25:37,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030630032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:37,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:37,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:37,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985204414] [2024-11-27 23:25:37,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:37,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:37,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:37,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:37,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:37,394 INFO L87 Difference]: Start difference. First operand 10301 states and 17174 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:37,948 INFO L93 Difference]: Finished difference Result 20659 states and 34429 transitions. [2024-11-27 23:25:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:37,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-27 23:25:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:38,009 INFO L225 Difference]: With dead ends: 20659 [2024-11-27 23:25:38,010 INFO L226 Difference]: Without dead ends: 10361 [2024-11-27 23:25:38,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:38,040 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 3 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:38,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1882 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:38,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10361 states. [2024-11-27 23:25:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10361 to 10361. [2024-11-27 23:25:39,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10361 states, 7894 states have (on average 1.5720800608056753) internal successors, (12410), 7936 states have internal predecessors, (12410), 2418 states have call successors, (2418), 48 states have call predecessors, (2418), 48 states have return successors, (2418), 2376 states have call predecessors, (2418), 2418 states have call successors, (2418) [2024-11-27 23:25:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10361 states to 10361 states and 17246 transitions. [2024-11-27 23:25:39,079 INFO L78 Accepts]: Start accepts. Automaton has 10361 states and 17246 transitions. Word has length 725 [2024-11-27 23:25:39,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:39,080 INFO L471 AbstractCegarLoop]: Abstraction has 10361 states and 17246 transitions. [2024-11-27 23:25:39,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 10361 states and 17246 transitions. [2024-11-27 23:25:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-27 23:25:39,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:39,094 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:39,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:25:39,095 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:39,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash -540871422, now seen corresponding path program 1 times [2024-11-27 23:25:39,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:39,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138107609] [2024-11-27 23:25:39,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:39,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:40,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:40,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138107609] [2024-11-27 23:25:40,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138107609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:40,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:40,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:40,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735634548] [2024-11-27 23:25:40,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:40,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:40,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:40,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:40,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:40,153 INFO L87 Difference]: Start difference. First operand 10361 states and 17246 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:41,478 INFO L93 Difference]: Finished difference Result 25921 states and 43167 transitions. [2024-11-27 23:25:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:25:41,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-27 23:25:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:41,568 INFO L225 Difference]: With dead ends: 25921 [2024-11-27 23:25:41,568 INFO L226 Difference]: Without dead ends: 15563 [2024-11-27 23:25:41,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:41,609 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 1427 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:41,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 2406 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:25:41,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15563 states. [2024-11-27 23:25:43,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15563 to 15539. [2024-11-27 23:25:43,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15539 states, 11839 states have (on average 1.5691359067488808) internal successors, (18577), 11902 states have internal predecessors, (18577), 3627 states have call successors, (3627), 72 states have call predecessors, (3627), 72 states have return successors, (3627), 3564 states have call predecessors, (3627), 3627 states have call successors, (3627) [2024-11-27 23:25:43,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15539 states to 15539 states and 25831 transitions. [2024-11-27 23:25:43,674 INFO L78 Accepts]: Start accepts. Automaton has 15539 states and 25831 transitions. Word has length 725 [2024-11-27 23:25:43,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:43,675 INFO L471 AbstractCegarLoop]: Abstraction has 15539 states and 25831 transitions. [2024-11-27 23:25:43,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:43,676 INFO L276 IsEmpty]: Start isEmpty. Operand 15539 states and 25831 transitions. [2024-11-27 23:25:43,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-27 23:25:43,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:43,690 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:43,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:25:43,690 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:43,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:43,691 INFO L85 PathProgramCache]: Analyzing trace with hash 885686916, now seen corresponding path program 1 times [2024-11-27 23:25:43,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:43,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842645611] [2024-11-27 23:25:43,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:43,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:44,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:44,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842645611] [2024-11-27 23:25:44,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842645611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:44,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:44,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:44,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284217764] [2024-11-27 23:25:44,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:44,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:44,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:44,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:44,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:44,535 INFO L87 Difference]: Start difference. First operand 15539 states and 25831 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:46,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:46,298 INFO L93 Difference]: Finished difference Result 48413 states and 80440 transitions. [2024-11-27 23:25:46,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:46,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-27 23:25:46,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:46,449 INFO L225 Difference]: With dead ends: 48413 [2024-11-27 23:25:46,449 INFO L226 Difference]: Without dead ends: 32877 [2024-11-27 23:25:46,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:46,497 INFO L435 NwaCegarLoop]: 665 mSDtfsCounter, 663 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:46,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1913 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:25:46,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32877 states. [2024-11-27 23:25:50,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32877 to 31073. [2024-11-27 23:25:50,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31073 states, 23674 states have (on average 1.5601081355073076) internal successors, (36934), 23800 states have internal predecessors, (36934), 7254 states have call successors, (7254), 144 states have call predecessors, (7254), 144 states have return successors, (7254), 7128 states have call predecessors, (7254), 7254 states have call successors, (7254) [2024-11-27 23:25:50,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31073 states to 31073 states and 51442 transitions. [2024-11-27 23:25:50,379 INFO L78 Accepts]: Start accepts. Automaton has 31073 states and 51442 transitions. Word has length 725 [2024-11-27 23:25:50,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:50,381 INFO L471 AbstractCegarLoop]: Abstraction has 31073 states and 51442 transitions. [2024-11-27 23:25:50,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:50,381 INFO L276 IsEmpty]: Start isEmpty. Operand 31073 states and 51442 transitions. [2024-11-27 23:25:50,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-27 23:25:50,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:50,395 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:50,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:25:50,396 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:50,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:50,397 INFO L85 PathProgramCache]: Analyzing trace with hash -209217629, now seen corresponding path program 1 times [2024-11-27 23:25:50,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:50,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795892052] [2024-11-27 23:25:50,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:50,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:51,327 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:25:51,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:51,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795892052] [2024-11-27 23:25:51,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795892052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:51,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:51,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:51,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82028410] [2024-11-27 23:25:51,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:51,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:51,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:51,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:51,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:51,331 INFO L87 Difference]: Start difference. First operand 31073 states and 51442 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:25:55,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:55,270 INFO L93 Difference]: Finished difference Result 138601 states and 229538 transitions. [2024-11-27 23:25:55,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:25:55,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 726 [2024-11-27 23:25:55,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:55,905 INFO L225 Difference]: With dead ends: 138601 [2024-11-27 23:25:55,905 INFO L226 Difference]: Without dead ends: 107531 [2024-11-27 23:25:55,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:56,000 INFO L435 NwaCegarLoop]: 681 mSDtfsCounter, 1168 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:56,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 2441 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:25:56,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107531 states. [2024-11-27 23:26:02,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107531 to 107381. [2024-11-27 23:26:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107381 states, 86536 states have (on average 1.5846352962928723) internal successors, (137128), 87076 states have internal predecessors, (137128), 20268 states have call successors, (20268), 576 states have call predecessors, (20268), 576 states have return successors, (20268), 19728 states have call predecessors, (20268), 20268 states have call successors, (20268) [2024-11-27 23:26:03,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107381 states to 107381 states and 177664 transitions. [2024-11-27 23:26:03,302 INFO L78 Accepts]: Start accepts. Automaton has 107381 states and 177664 transitions. Word has length 726 [2024-11-27 23:26:03,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:03,303 INFO L471 AbstractCegarLoop]: Abstraction has 107381 states and 177664 transitions. [2024-11-27 23:26:03,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:26:03,304 INFO L276 IsEmpty]: Start isEmpty. Operand 107381 states and 177664 transitions. [2024-11-27 23:26:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-27 23:26:03,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:03,751 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:03,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:26:03,752 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:03,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:03,752 INFO L85 PathProgramCache]: Analyzing trace with hash -415343648, now seen corresponding path program 1 times [2024-11-27 23:26:03,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:03,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611934724] [2024-11-27 23:26:03,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:03,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:05,471 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-27 23:26:05,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:05,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611934724] [2024-11-27 23:26:05,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611934724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:05,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:05,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:26:05,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691577948] [2024-11-27 23:26:05,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:05,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:26:05,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:05,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:26:05,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:26:05,475 INFO L87 Difference]: Start difference. First operand 107381 states and 177664 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:26:11,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:11,113 INFO L93 Difference]: Finished difference Result 258565 states and 427484 transitions. [2024-11-27 23:26:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:26:11,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 727 [2024-11-27 23:26:11,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:11,907 INFO L225 Difference]: With dead ends: 258565 [2024-11-27 23:26:11,907 INFO L226 Difference]: Without dead ends: 151187 [2024-11-27 23:26:12,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:26:12,146 INFO L435 NwaCegarLoop]: 900 mSDtfsCounter, 1193 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:12,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 3602 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:26:12,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151187 states. [2024-11-27 23:26:18,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151187 to 110621. [2024-11-27 23:26:18,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110621 states, 89776 states have (on average 1.5912047763322046) internal successors, (142852), 90316 states have internal predecessors, (142852), 20268 states have call successors, (20268), 576 states have call predecessors, (20268), 576 states have return successors, (20268), 19728 states have call predecessors, (20268), 20268 states have call successors, (20268) [2024-11-27 23:26:18,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110621 states to 110621 states and 183388 transitions. [2024-11-27 23:26:18,493 INFO L78 Accepts]: Start accepts. Automaton has 110621 states and 183388 transitions. Word has length 727 [2024-11-27 23:26:18,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:18,497 INFO L471 AbstractCegarLoop]: Abstraction has 110621 states and 183388 transitions. [2024-11-27 23:26:18,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-27 23:26:18,497 INFO L276 IsEmpty]: Start isEmpty. Operand 110621 states and 183388 transitions. [2024-11-27 23:26:18,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-27 23:26:18,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:18,529 INFO L218 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:18,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:26:18,530 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:18,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:18,531 INFO L85 PathProgramCache]: Analyzing trace with hash -832740254, now seen corresponding path program 1 times [2024-11-27 23:26:18,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:18,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111829294] [2024-11-27 23:26:18,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:18,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat