./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.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_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/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_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/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_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/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 2b329d9832ec99d9ffbb7796b225f0eac74b08ac18938b07d93f1b80cf8ae2f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:35:04,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:35:04,850 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:35:04,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:35:04,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:35:04,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:35:04,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:35:04,903 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:35:04,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:35:04,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:35:04,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:35:04,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:35:04,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:35:04,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:35:04,905 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:35:04,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:35:04,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:35:04,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:35:04,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:35:04,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:35:04,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:35:04,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:35:04,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:35:04,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:35:04,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:35:04,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:35:04,908 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:35:04,908 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:35:04,908 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:35:04,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:35:04,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:35:04,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:35:04,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:35:04,909 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:35:04,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:35:04,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:35:04,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:35:04,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:35:04,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:35:04,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:35:04,910 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:35:04,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:35:04,911 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:35:04,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:35:04,911 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:35:04,911 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:35:04,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:35:04,912 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:35:04,912 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_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/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 -> 2b329d9832ec99d9ffbb7796b225f0eac74b08ac18938b07d93f1b80cf8ae2f9 [2024-11-28 03:35:05,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:35:05,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:35:05,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:35:05,285 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:35:05,286 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:35:05,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i [2024-11-28 03:35:08,643 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/ed4aec983/e9176d4cb57a46879a3ffdce6b766215/FLAG4cf90dd19 [2024-11-28 03:35:08,981 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:35:08,981 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i [2024-11-28 03:35:08,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/ed4aec983/e9176d4cb57a46879a3ffdce6b766215/FLAG4cf90dd19 [2024-11-28 03:35:09,017 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/ed4aec983/e9176d4cb57a46879a3ffdce6b766215 [2024-11-28 03:35:09,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:35:09,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:35:09,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:35:09,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:35:09,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:35:09,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702b737d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09, skipping insertion in model container [2024-11-28 03:35:09,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:35:09,270 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_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i[916,929] [2024-11-28 03:35:09,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:35:09,442 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:35:09,452 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_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i[916,929] [2024-11-28 03:35:09,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:35:09,514 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:35:09,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09 WrapperNode [2024-11-28 03:35:09,515 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:35:09,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:35:09,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:35:09,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:35:09,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,607 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 317 [2024-11-28 03:35:09,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:35:09,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:35:09,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:35:09,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:35:09,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,622 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,647 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:35:09,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,668 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:35:09,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:35:09,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:35:09,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:35:09,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (1/1) ... [2024-11-28 03:35:09,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:35:09,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:09,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:35:09,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:35:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:35:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:35:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:35:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:35:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:35:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:35:09,913 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:35:09,916 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:35:10,734 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-28 03:35:10,734 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:35:10,752 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:35:10,755 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:35:10,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:10 BoogieIcfgContainer [2024-11-28 03:35:10,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:35:10,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:35:10,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:35:10,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:35:10,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:35:09" (1/3) ... [2024-11-28 03:35:10,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bf89cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:35:10, skipping insertion in model container [2024-11-28 03:35:10,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09" (2/3) ... [2024-11-28 03:35:10,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bf89cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:35:10, skipping insertion in model container [2024-11-28 03:35:10,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:10" (3/3) ... [2024-11-28 03:35:10,769 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-34.i [2024-11-28 03:35:10,787 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:35:10,788 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-34.i that has 2 procedures, 137 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:35:10,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:35:10,873 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;@3029aa50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:35:10,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:35:10,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 90 states have (on average 1.4777777777777779) internal successors, (133), 91 states have internal predecessors, (133), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-28 03:35:10,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-28 03:35:10,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:10,899 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:10,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:10,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:10,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1857806639, now seen corresponding path program 1 times [2024-11-28 03:35:10,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:10,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376914741] [2024-11-28 03:35:10,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:10,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2024-11-28 03:35:11,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:11,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376914741] [2024-11-28 03:35:11,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376914741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:11,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761274064] [2024-11-28 03:35:11,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:11,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:11,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:11,418 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:11,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:35:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:11,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:35:11,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2024-11-28 03:35:11,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:35:11,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761274064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:11,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:35:11,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:35:11,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340163768] [2024-11-28 03:35:11,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:11,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:35:11,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:11,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:35:11,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:35:11,889 INFO L87 Difference]: Start difference. First operand has 137 states, 90 states have (on average 1.4777777777777779) internal successors, (133), 91 states have internal predecessors, (133), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:35:11,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:11,930 INFO L93 Difference]: Finished difference Result 267 states and 480 transitions. [2024-11-28 03:35:11,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:35:11,932 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) Word has length 276 [2024-11-28 03:35:11,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:11,941 INFO L225 Difference]: With dead ends: 267 [2024-11-28 03:35:11,941 INFO L226 Difference]: Without dead ends: 133 [2024-11-28 03:35:11,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:35:11,948 INFO L435 NwaCegarLoop]: 214 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, 214 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:11,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:35:11,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-28 03:35:11,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-28 03:35:11,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 87 states have internal predecessors, (126), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-28 03:35:12,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 214 transitions. [2024-11-28 03:35:12,005 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 214 transitions. Word has length 276 [2024-11-28 03:35:12,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:12,006 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 214 transitions. [2024-11-28 03:35:12,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:35:12,007 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 214 transitions. [2024-11-28 03:35:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-28 03:35:12,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:12,019 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:12,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:35:12,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4832fe35-0221-4a5e-9cb5-120fc24c2ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:35:12,220 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:12,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:12,221 INFO L85 PathProgramCache]: Analyzing trace with hash 131489191, now seen corresponding path program 1 times [2024-11-28 03:35:12,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:12,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266977204] [2024-11-28 03:35:12,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:12,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:13,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:13,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266977204] [2024-11-28 03:35:13,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266977204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:13,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:13,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:35:13,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495005682] [2024-11-28 03:35:13,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:13,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:35:13,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:13,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:35:13,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:35:13,366 INFO L87 Difference]: Start difference. First operand 133 states and 214 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:13,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:13,750 INFO L93 Difference]: Finished difference Result 423 states and 681 transitions. [2024-11-28 03:35:13,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:35:13,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 276 [2024-11-28 03:35:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:13,758 INFO L225 Difference]: With dead ends: 423 [2024-11-28 03:35:13,758 INFO L226 Difference]: Without dead ends: 293 [2024-11-28 03:35:13,760 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 [2024-11-28 03:35:13,761 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 204 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:13,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 660 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:35:13,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-28 03:35:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 263. [2024-11-28 03:35:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 172 states have (on average 1.447674418604651) internal successors, (249), 172 states have internal predecessors, (249), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-28 03:35:13,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 425 transitions. [2024-11-28 03:35:13,854 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 425 transitions. Word has length 276 [2024-11-28 03:35:13,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:13,856 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 425 transitions. [2024-11-28 03:35:13,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 425 transitions. [2024-11-28 03:35:13,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-28 03:35:13,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:13,869 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:13,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:35:13,869 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:13,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:13,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1079059205, now seen corresponding path program 1 times [2024-11-28 03:35:13,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:13,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278176208] [2024-11-28 03:35:13,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:13,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:14,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:14,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278176208] [2024-11-28 03:35:14,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278176208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:14,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:14,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:35:14,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139094488] [2024-11-28 03:35:14,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:14,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:35:14,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:14,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:35:14,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:35:14,610 INFO L87 Difference]: Start difference. First operand 263 states and 425 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:15,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:15,324 INFO L93 Difference]: Finished difference Result 778 states and 1258 transitions. [2024-11-28 03:35:15,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:35:15,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 277 [2024-11-28 03:35:15,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:15,334 INFO L225 Difference]: With dead ends: 778 [2024-11-28 03:35:15,335 INFO L226 Difference]: Without dead ends: 518 [2024-11-28 03:35:15,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:35:15,337 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 241 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:15,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 796 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:35:15,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-28 03:35:15,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 267. [2024-11-28 03:35:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 176 states have (on average 1.4375) internal successors, (253), 176 states have internal predecessors, (253), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-28 03:35:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 429 transitions. [2024-11-28 03:35:15,453 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 429 transitions. Word has length 277 [2024-11-28 03:35:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:15,454 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 429 transitions. [2024-11-28 03:35:15,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:15,455 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 429 transitions. [2024-11-28 03:35:15,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 03:35:15,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:15,461 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:15,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:35:15,462 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:15,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:15,462 INFO L85 PathProgramCache]: Analyzing trace with hash 998591439, now seen corresponding path program 1 times [2024-11-28 03:35:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679821044] [2024-11-28 03:35:15,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:15,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:16,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:16,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679821044] [2024-11-28 03:35:16,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679821044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:16,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:16,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:35:16,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869012813] [2024-11-28 03:35:16,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:16,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:35:16,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:16,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:35:16,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:35:16,802 INFO L87 Difference]: Start difference. First operand 267 states and 429 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:17,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:17,593 INFO L93 Difference]: Finished difference Result 916 states and 1461 transitions. [2024-11-28 03:35:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:35:17,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-28 03:35:17,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:17,605 INFO L225 Difference]: With dead ends: 916 [2024-11-28 03:35:17,606 INFO L226 Difference]: Without dead ends: 652 [2024-11-28 03:35:17,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:35:17,608 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 377 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:17,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 553 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:35:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-28 03:35:17,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 447. [2024-11-28 03:35:17,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 322 states have (on average 1.484472049689441) internal successors, (478), 324 states have internal predecessors, (478), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-28 03:35:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 718 transitions. [2024-11-28 03:35:17,740 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 718 transitions. Word has length 278 [2024-11-28 03:35:17,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:17,741 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 718 transitions. [2024-11-28 03:35:17,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:17,742 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 718 transitions. [2024-11-28 03:35:17,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 03:35:17,746 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:17,746 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:17,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:35:17,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:17,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:17,747 INFO L85 PathProgramCache]: Analyzing trace with hash -924636595, now seen corresponding path program 1 times [2024-11-28 03:35:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:17,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223992645] [2024-11-28 03:35:17,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:17,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:24,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:24,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223992645] [2024-11-28 03:35:24,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223992645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:24,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:24,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:35:24,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021725696] [2024-11-28 03:35:24,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:24,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:35:24,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:24,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:35:24,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:35:24,508 INFO L87 Difference]: Start difference. First operand 447 states and 718 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:29,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:29,809 INFO L93 Difference]: Finished difference Result 1282 states and 1984 transitions. [2024-11-28 03:35:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:35:29,810 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-28 03:35:29,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:29,816 INFO L225 Difference]: With dead ends: 1282 [2024-11-28 03:35:29,816 INFO L226 Difference]: Without dead ends: 838 [2024-11-28 03:35:29,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:35:29,819 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 754 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:29,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 874 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:35:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-28 03:35:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 583. [2024-11-28 03:35:29,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 434 states have (on average 1.4516129032258065) internal successors, (630), 440 states have internal predecessors, (630), 140 states have call successors, (140), 8 states have call predecessors, (140), 8 states have return successors, (140), 134 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-28 03:35:29,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 910 transitions. [2024-11-28 03:35:29,921 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 910 transitions. Word has length 278 [2024-11-28 03:35:29,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:29,924 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 910 transitions. [2024-11-28 03:35:29,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:29,924 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 910 transitions. [2024-11-28 03:35:29,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 03:35:29,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:29,930 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:29,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:35:29,930 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:29,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:29,931 INFO L85 PathProgramCache]: Analyzing trace with hash 850370767, now seen corresponding path program 1 times [2024-11-28 03:35:29,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:29,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437823824] [2024-11-28 03:35:29,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:29,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:33,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437823824] [2024-11-28 03:35:33,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437823824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:33,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:33,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:35:33,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838720687] [2024-11-28 03:35:33,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:33,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:35:33,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:33,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:35:33,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:35:33,411 INFO L87 Difference]: Start difference. First operand 583 states and 910 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:35,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:35,461 INFO L93 Difference]: Finished difference Result 1942 states and 2980 transitions. [2024-11-28 03:35:35,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:35:35,462 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-28 03:35:35,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:35,474 INFO L225 Difference]: With dead ends: 1942 [2024-11-28 03:35:35,475 INFO L226 Difference]: Without dead ends: 1362 [2024-11-28 03:35:35,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:35:35,479 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 470 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:35,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 886 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:35:35,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-11-28 03:35:35,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 800. [2024-11-28 03:35:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 605 states have (on average 1.4611570247933885) internal successors, (884), 611 states have internal predecessors, (884), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-28 03:35:35,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1252 transitions. [2024-11-28 03:35:35,643 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1252 transitions. Word has length 278 [2024-11-28 03:35:35,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:35,644 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1252 transitions. [2024-11-28 03:35:35,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:35,644 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1252 transitions. [2024-11-28 03:35:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 03:35:35,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:35,656 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:35,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:35:35,656 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:35,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:35,657 INFO L85 PathProgramCache]: Analyzing trace with hash -244578225, now seen corresponding path program 1 times [2024-11-28 03:35:35,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:35,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113256362] [2024-11-28 03:35:35,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:35,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:38,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:38,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113256362] [2024-11-28 03:35:38,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113256362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:38,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:38,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:35:38,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842980724] [2024-11-28 03:35:38,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:38,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:35:38,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:38,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:35:38,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:35:38,906 INFO L87 Difference]: Start difference. First operand 800 states and 1252 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:35:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:41,469 INFO L93 Difference]: Finished difference Result 2100 states and 3195 transitions. [2024-11-28 03:35:41,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:35:41,470 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 278 [2024-11-28 03:35:41,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:41,477 INFO L225 Difference]: With dead ends: 2100 [2024-11-28 03:35:41,478 INFO L226 Difference]: Without dead ends: 1438 [2024-11-28 03:35:41,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:35:41,481 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 497 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:41,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1160 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:35:41,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-28 03:35:41,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1134. [2024-11-28 03:35:41,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 939 states have (on average 1.4717784877529287) internal successors, (1382), 945 states have internal predecessors, (1382), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-28 03:35:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1750 transitions. [2024-11-28 03:35:41,647 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1750 transitions. Word has length 278 [2024-11-28 03:35:41,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:41,648 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1750 transitions. [2024-11-28 03:35:41,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:35:41,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1750 transitions. [2024-11-28 03:35:41,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 03:35:41,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:41,655 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:41,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:35:41,655 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:41,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:41,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2100197630, now seen corresponding path program 1 times [2024-11-28 03:35:41,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:41,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300684249] [2024-11-28 03:35:41,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:41,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:43,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:43,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:43,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300684249] [2024-11-28 03:35:43,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300684249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:43,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:43,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:35:43,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025864229] [2024-11-28 03:35:43,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:43,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:35:43,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:43,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:35:43,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:35:43,767 INFO L87 Difference]: Start difference. First operand 1134 states and 1750 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:44,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:44,542 INFO L93 Difference]: Finished difference Result 2190 states and 3343 transitions. [2024-11-28 03:35:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:35:44,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-28 03:35:44,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:44,551 INFO L225 Difference]: With dead ends: 2190 [2024-11-28 03:35:44,551 INFO L226 Difference]: Without dead ends: 1506 [2024-11-28 03:35:44,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:35:44,554 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 245 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:44,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 695 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:35:44,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-28 03:35:44,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1146. [2024-11-28 03:35:44,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 951 states have (on average 1.4616193480546793) internal successors, (1390), 957 states have internal predecessors, (1390), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-28 03:35:44,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1758 transitions. [2024-11-28 03:35:44,705 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1758 transitions. Word has length 278 [2024-11-28 03:35:44,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:44,705 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1758 transitions. [2024-11-28 03:35:44,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:44,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1758 transitions. [2024-11-28 03:35:44,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 03:35:44,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:44,711 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:44,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:35:44,712 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:44,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:44,713 INFO L85 PathProgramCache]: Analyzing trace with hash -160746483, now seen corresponding path program 1 times [2024-11-28 03:35:44,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:44,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287009965] [2024-11-28 03:35:44,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:44,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:45,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:45,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287009965] [2024-11-28 03:35:45,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287009965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:45,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:45,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:35:45,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922386850] [2024-11-28 03:35:45,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:45,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:35:45,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:45,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:35:45,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:35:45,470 INFO L87 Difference]: Start difference. First operand 1146 states and 1758 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:46,560 INFO L93 Difference]: Finished difference Result 2384 states and 3620 transitions. [2024-11-28 03:35:46,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:35:46,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-28 03:35:46,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:46,568 INFO L225 Difference]: With dead ends: 2384 [2024-11-28 03:35:46,568 INFO L226 Difference]: Without dead ends: 1716 [2024-11-28 03:35:46,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:35:46,572 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 343 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:46,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 881 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:35:46,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-28 03:35:46,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1126. [2024-11-28 03:35:46,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 931 states have (on average 1.4543501611170784) internal successors, (1354), 937 states have internal predecessors, (1354), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-28 03:35:46,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1722 transitions. [2024-11-28 03:35:46,731 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1722 transitions. Word has length 278 [2024-11-28 03:35:46,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:46,732 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1722 transitions. [2024-11-28 03:35:46,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:46,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1722 transitions. [2024-11-28 03:35:46,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 03:35:46,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:46,735 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:46,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:35:46,736 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:46,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:46,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1255695475, now seen corresponding path program 1 times [2024-11-28 03:35:46,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:46,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708932422] [2024-11-28 03:35:46,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:46,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:47,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:47,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:47,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708932422] [2024-11-28 03:35:47,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708932422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:47,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:47,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:35:47,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481863500] [2024-11-28 03:35:47,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:47,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:35:47,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:47,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:35:47,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:35:47,269 INFO L87 Difference]: Start difference. First operand 1126 states and 1722 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:47,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:47,747 INFO L93 Difference]: Finished difference Result 2044 states and 3106 transitions. [2024-11-28 03:35:47,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:35:47,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-28 03:35:47,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:47,753 INFO L225 Difference]: With dead ends: 2044 [2024-11-28 03:35:47,753 INFO L226 Difference]: Without dead ends: 1168 [2024-11-28 03:35:47,756 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 [2024-11-28 03:35:47,756 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 156 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:47,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 569 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:35:47,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-28 03:35:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1062. [2024-11-28 03:35:47,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 867 states have (on average 1.4371395617070357) internal successors, (1246), 873 states have internal predecessors, (1246), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-28 03:35:47,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1614 transitions. [2024-11-28 03:35:47,916 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1614 transitions. Word has length 278 [2024-11-28 03:35:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:47,917 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1614 transitions. [2024-11-28 03:35:47,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:47,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1614 transitions. [2024-11-28 03:35:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-28 03:35:47,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:47,920 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:47,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:35:47,920 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:47,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:47,921 INFO L85 PathProgramCache]: Analyzing trace with hash 670490962, now seen corresponding path program 1 times [2024-11-28 03:35:47,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:47,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899800913] [2024-11-28 03:35:47,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:47,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:51,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:35:51,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:51,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899800913] [2024-11-28 03:35:51,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899800913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:51,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:51,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:35:51,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742026640] [2024-11-28 03:35:51,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:51,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:35:51,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:51,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:35:51,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:35:51,257 INFO L87 Difference]: Start difference. First operand 1062 states and 1614 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:53,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:53,335 INFO L93 Difference]: Finished difference Result 2064 states and 3114 transitions. [2024-11-28 03:35:53,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:35:53,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 279 [2024-11-28 03:35:53,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:53,343 INFO L225 Difference]: With dead ends: 2064 [2024-11-28 03:35:53,343 INFO L226 Difference]: Without dead ends: 1484 [2024-11-28 03:35:53,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:35:53,347 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 357 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:53,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 986 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:35:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2024-11-28 03:35:53,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 910. [2024-11-28 03:35:53,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 735 states have (on average 1.4394557823129253) internal successors, (1058), 737 states have internal predecessors, (1058), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:35:53,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1386 transitions. [2024-11-28 03:35:53,495 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1386 transitions. Word has length 279 [2024-11-28 03:35:53,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:53,496 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1386 transitions. [2024-11-28 03:35:53,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:35:53,497 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1386 transitions. [2024-11-28 03:35:53,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-28 03:35:53,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:53,500 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:53,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:35:53,500 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:53,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:53,501 INFO L85 PathProgramCache]: Analyzing trace with hash 515457480, now seen corresponding path program 1 times [2024-11-28 03:35:53,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:53,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774910389] [2024-11-28 03:35:53,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:53,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:01,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:36:01,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:01,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774910389] [2024-11-28 03:36:01,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774910389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:01,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:01,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:36:01,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154952257] [2024-11-28 03:36:01,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:01,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:36:01,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:01,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:36:01,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:36:01,165 INFO L87 Difference]: Start difference. First operand 910 states and 1386 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:36:05,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:05,597 INFO L93 Difference]: Finished difference Result 1902 states and 2841 transitions. [2024-11-28 03:36:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:36:05,598 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 279 [2024-11-28 03:36:05,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:05,604 INFO L225 Difference]: With dead ends: 1902 [2024-11-28 03:36:05,604 INFO L226 Difference]: Without dead ends: 1298 [2024-11-28 03:36:05,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:36:05,606 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 344 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:05,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1796 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:36:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2024-11-28 03:36:05,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1050. [2024-11-28 03:36:05,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 875 states have (on average 1.4194285714285715) internal successors, (1242), 877 states have internal predecessors, (1242), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:36:05,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1570 transitions. [2024-11-28 03:36:05,752 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1570 transitions. Word has length 279 [2024-11-28 03:36:05,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:05,753 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1570 transitions. [2024-11-28 03:36:05,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:36:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1570 transitions. [2024-11-28 03:36:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-28 03:36:05,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:05,757 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:05,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:36:05,758 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:05,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:05,758 INFO L85 PathProgramCache]: Analyzing trace with hash -599928232, now seen corresponding path program 1 times [2024-11-28 03:36:05,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:05,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759916212] [2024-11-28 03:36:05,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:05,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:17,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:36:17,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:17,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759916212] [2024-11-28 03:36:17,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759916212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:17,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:17,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:36:17,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120320085] [2024-11-28 03:36:17,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:17,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:36:17,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:17,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:36:17,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:36:17,839 INFO L87 Difference]: Start difference. First operand 1050 states and 1570 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:36:22,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:22,754 INFO L93 Difference]: Finished difference Result 1836 states and 2725 transitions. [2024-11-28 03:36:22,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:36:22,755 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-11-28 03:36:22,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:22,761 INFO L225 Difference]: With dead ends: 1836 [2024-11-28 03:36:22,761 INFO L226 Difference]: Without dead ends: 1238 [2024-11-28 03:36:22,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=225, Invalid=767, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:36:22,764 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 446 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:22,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1472 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:36:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2024-11-28 03:36:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 968. [2024-11-28 03:36:22,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 793 states have (on average 1.4325346784363178) internal successors, (1136), 795 states have internal predecessors, (1136), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:36:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1464 transitions. [2024-11-28 03:36:22,913 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1464 transitions. Word has length 280 [2024-11-28 03:36:22,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:22,913 INFO L471 AbstractCegarLoop]: Abstraction has 968 states and 1464 transitions. [2024-11-28 03:36:22,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:36:22,914 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1464 transitions. [2024-11-28 03:36:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-28 03:36:22,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:22,916 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:22,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:36:22,917 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:22,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:22,917 INFO L85 PathProgramCache]: Analyzing trace with hash 80130138, now seen corresponding path program 1 times [2024-11-28 03:36:22,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:22,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419801676] [2024-11-28 03:36:22,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:22,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:36:25,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:25,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419801676] [2024-11-28 03:36:25,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419801676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:25,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:25,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:36:25,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864707031] [2024-11-28 03:36:25,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:25,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:36:25,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:25,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:36:25,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:36:25,989 INFO L87 Difference]: Start difference. First operand 968 states and 1464 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:36:27,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:27,730 INFO L93 Difference]: Finished difference Result 1594 states and 2398 transitions. [2024-11-28 03:36:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:36:27,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-11-28 03:36:27,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:27,737 INFO L225 Difference]: With dead ends: 1594 [2024-11-28 03:36:27,737 INFO L226 Difference]: Without dead ends: 1086 [2024-11-28 03:36:27,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:36:27,740 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 314 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:27,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 919 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:36:27,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2024-11-28 03:36:27,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 948. [2024-11-28 03:36:27,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 773 states have (on average 1.4333764553686934) internal successors, (1108), 775 states have internal predecessors, (1108), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:36:27,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1436 transitions. [2024-11-28 03:36:27,880 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1436 transitions. Word has length 280 [2024-11-28 03:36:27,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:27,881 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1436 transitions. [2024-11-28 03:36:27,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:36:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1436 transitions. [2024-11-28 03:36:27,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-28 03:36:27,884 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:27,884 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:27,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:36:27,884 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:27,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:27,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1824763124, now seen corresponding path program 1 times [2024-11-28 03:36:27,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:27,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070993409] [2024-11-28 03:36:27,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:27,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:35,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:36:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070993409] [2024-11-28 03:36:35,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070993409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:35,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:35,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:36:35,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588126684] [2024-11-28 03:36:35,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:35,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:36:35,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:35,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:36:35,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:36:35,121 INFO L87 Difference]: Start difference. First operand 948 states and 1436 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:36:43,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:43,610 INFO L93 Difference]: Finished difference Result 1696 states and 2562 transitions. [2024-11-28 03:36:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:36:43,611 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-11-28 03:36:43,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:43,615 INFO L225 Difference]: With dead ends: 1696 [2024-11-28 03:36:43,615 INFO L226 Difference]: Without dead ends: 1204 [2024-11-28 03:36:43,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:36:43,617 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 409 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:43,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1681 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 03:36:43,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2024-11-28 03:36:43,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 980. [2024-11-28 03:36:43,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 805 states have (on average 1.431055900621118) internal successors, (1152), 807 states have internal predecessors, (1152), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:36:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1480 transitions. [2024-11-28 03:36:43,762 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1480 transitions. Word has length 280 [2024-11-28 03:36:43,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:43,763 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1480 transitions. [2024-11-28 03:36:43,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:36:43,763 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1480 transitions. [2024-11-28 03:36:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-28 03:36:43,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:43,766 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:43,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:36:43,766 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:43,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:43,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1375255180, now seen corresponding path program 1 times [2024-11-28 03:36:43,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:43,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065353036] [2024-11-28 03:36:43,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:43,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:36:50,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:50,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065353036] [2024-11-28 03:36:50,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065353036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:50,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:50,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:36:50,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526853875] [2024-11-28 03:36:50,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:50,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:36:50,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:50,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:36:50,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:36:50,218 INFO L87 Difference]: Start difference. First operand 980 states and 1480 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:36:59,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:59,638 INFO L93 Difference]: Finished difference Result 2172 states and 3216 transitions. [2024-11-28 03:36:59,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:36:59,638 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-11-28 03:36:59,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:59,656 INFO L225 Difference]: With dead ends: 2172 [2024-11-28 03:36:59,656 INFO L226 Difference]: Without dead ends: 1656 [2024-11-28 03:36:59,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=206, Invalid=606, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:36:59,665 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 599 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:59,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1495 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 03:36:59,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-28 03:36:59,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1076. [2024-11-28 03:36:59,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 901 states have (on average 1.4317425083240845) internal successors, (1290), 903 states have internal predecessors, (1290), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:36:59,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1618 transitions. [2024-11-28 03:36:59,997 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1618 transitions. Word has length 280 [2024-11-28 03:37:00,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:00,001 INFO L471 AbstractCegarLoop]: Abstraction has 1076 states and 1618 transitions. [2024-11-28 03:37:00,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:37:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1618 transitions. [2024-11-28 03:37:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-28 03:37:00,023 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:00,024 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:00,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:37:00,025 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:00,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1144704754, now seen corresponding path program 1 times [2024-11-28 03:37:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578742560] [2024-11-28 03:37:00,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:00,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:37:23,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:23,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578742560] [2024-11-28 03:37:23,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578742560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:37:23,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:37:23,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:37:23,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013844520] [2024-11-28 03:37:23,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:37:23,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:37:23,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:23,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:37:23,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:37:23,754 INFO L87 Difference]: Start difference. First operand 1076 states and 1618 transitions. Second operand has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:37:34,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:34,677 INFO L93 Difference]: Finished difference Result 2120 states and 3092 transitions. [2024-11-28 03:37:34,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:37:34,678 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-11-28 03:37:34,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:34,688 INFO L225 Difference]: With dead ends: 2120 [2024-11-28 03:37:34,688 INFO L226 Difference]: Without dead ends: 1502 [2024-11-28 03:37:34,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=204, Invalid=788, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:37:34,692 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 439 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:34,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1532 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-28 03:37:34,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-11-28 03:37:34,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1064. [2024-11-28 03:37:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 889 states have (on average 1.4173228346456692) internal successors, (1260), 891 states have internal predecessors, (1260), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:37:34,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1588 transitions. [2024-11-28 03:37:34,910 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1588 transitions. Word has length 280 [2024-11-28 03:37:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:34,913 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1588 transitions. [2024-11-28 03:37:34,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:37:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1588 transitions. [2024-11-28 03:37:34,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 03:37:34,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:34,920 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:34,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:37:34,921 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:34,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:34,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1239063892, now seen corresponding path program 1 times [2024-11-28 03:37:34,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:34,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204127214] [2024-11-28 03:37:34,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:34,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:38:36,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:36,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204127214] [2024-11-28 03:38:36,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204127214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:38:36,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:38:36,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:38:36,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901181616] [2024-11-28 03:38:36,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:36,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:38:36,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:36,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:38:36,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:38:36,595 INFO L87 Difference]: Start difference. First operand 1064 states and 1588 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:38:38,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:38,226 INFO L93 Difference]: Finished difference Result 1670 states and 2397 transitions. [2024-11-28 03:38:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:38:38,227 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 281 [2024-11-28 03:38:38,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:38,234 INFO L225 Difference]: With dead ends: 1670 [2024-11-28 03:38:38,234 INFO L226 Difference]: Without dead ends: 1668 [2024-11-28 03:38:38,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:38:38,236 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 393 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:38,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1793 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:38:38,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-11-28 03:38:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1210. [2024-11-28 03:38:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1035 states have (on average 1.404830917874396) internal successors, (1454), 1037 states have internal predecessors, (1454), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:38:38,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1782 transitions. [2024-11-28 03:38:38,430 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1782 transitions. Word has length 281 [2024-11-28 03:38:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:38,430 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 1782 transitions. [2024-11-28 03:38:38,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:38:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1782 transitions. [2024-11-28 03:38:38,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 03:38:38,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:38,434 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:38:38,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:38:38,434 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:38:38,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:38,435 INFO L85 PathProgramCache]: Analyzing trace with hash -2056712342, now seen corresponding path program 1 times [2024-11-28 03:38:38,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:38,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338134336] [2024-11-28 03:38:38,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:38,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:17,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:40:17,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:17,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338134336] [2024-11-28 03:40:17,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338134336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:17,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:17,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:40:17,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222480402] [2024-11-28 03:40:17,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:17,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:40:17,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:17,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:40:17,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:40:17,993 INFO L87 Difference]: Start difference. First operand 1210 states and 1782 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:40:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:40:20,002 INFO L93 Difference]: Finished difference Result 1732 states and 2474 transitions. [2024-11-28 03:40:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:40:20,003 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 281 [2024-11-28 03:40:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:40:20,012 INFO L225 Difference]: With dead ends: 1732 [2024-11-28 03:40:20,012 INFO L226 Difference]: Without dead ends: 1730 [2024-11-28 03:40:20,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:40:20,014 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 364 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:40:20,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1737 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:40:20,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-11-28 03:40:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1348. [2024-11-28 03:40:20,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1173 states have (on average 1.3844842284739982) internal successors, (1624), 1175 states have internal predecessors, (1624), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:40:20,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1952 transitions. [2024-11-28 03:40:20,221 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1952 transitions. Word has length 281 [2024-11-28 03:40:20,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:40:20,222 INFO L471 AbstractCegarLoop]: Abstraction has 1348 states and 1952 transitions. [2024-11-28 03:40:20,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:40:20,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1952 transitions. [2024-11-28 03:40:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 03:40:20,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:40:20,225 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:40:20,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:40:20,226 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:40:20,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:20,227 INFO L85 PathProgramCache]: Analyzing trace with hash -816362066, now seen corresponding path program 1 times [2024-11-28 03:40:20,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:20,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228768919] [2024-11-28 03:40:20,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:20,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:20,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:40:20,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:20,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228768919] [2024-11-28 03:40:20,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228768919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:20,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:20,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:40:20,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474725752] [2024-11-28 03:40:20,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:20,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:40:20,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:20,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:40:20,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:40:20,531 INFO L87 Difference]: Start difference. First operand 1348 states and 1952 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:40:21,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:40:21,053 INFO L93 Difference]: Finished difference Result 2178 states and 3184 transitions. [2024-11-28 03:40:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:40:21,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 281 [2024-11-28 03:40:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:40:21,066 INFO L225 Difference]: With dead ends: 2178 [2024-11-28 03:40:21,066 INFO L226 Difference]: Without dead ends: 1340 [2024-11-28 03:40:21,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:40:21,072 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 167 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:40:21,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 823 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:40:21,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-28 03:40:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1286. [2024-11-28 03:40:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1111 states have (on average 1.3897389738973898) internal successors, (1544), 1113 states have internal predecessors, (1544), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:40:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1872 transitions. [2024-11-28 03:40:21,269 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1872 transitions. Word has length 281 [2024-11-28 03:40:21,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:40:21,270 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1872 transitions. [2024-11-28 03:40:21,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:40:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1872 transitions. [2024-11-28 03:40:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 03:40:21,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:40:21,273 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:40:21,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:40:21,274 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:40:21,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:21,276 INFO L85 PathProgramCache]: Analyzing trace with hash -350056047, now seen corresponding path program 1 times [2024-11-28 03:40:21,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:21,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289719930] [2024-11-28 03:40:21,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:21,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:25,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:40:25,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:25,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289719930] [2024-11-28 03:40:25,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289719930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:25,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:25,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:40:25,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584532199] [2024-11-28 03:40:25,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:25,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:40:25,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:25,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:40:25,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:40:25,862 INFO L87 Difference]: Start difference. First operand 1286 states and 1872 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:40:29,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:40:29,176 INFO L93 Difference]: Finished difference Result 2472 states and 3596 transitions. [2024-11-28 03:40:29,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:40:29,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 281 [2024-11-28 03:40:29,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:40:29,186 INFO L225 Difference]: With dead ends: 2472 [2024-11-28 03:40:29,186 INFO L226 Difference]: Without dead ends: 1992 [2024-11-28 03:40:29,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:40:29,189 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 238 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:40:29,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1062 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:40:29,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2024-11-28 03:40:29,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1398. [2024-11-28 03:40:29,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1223 states have (on average 1.4014717906786591) internal successors, (1714), 1225 states have internal predecessors, (1714), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:40:29,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2042 transitions. [2024-11-28 03:40:29,351 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2042 transitions. Word has length 281 [2024-11-28 03:40:29,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:40:29,352 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 2042 transitions. [2024-11-28 03:40:29,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:40:29,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2042 transitions. [2024-11-28 03:40:29,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 03:40:29,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:40:29,355 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:40:29,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:40:29,356 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:40:29,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:29,357 INFO L85 PathProgramCache]: Analyzing trace with hash 330002323, now seen corresponding path program 1 times [2024-11-28 03:40:29,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:29,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79719540] [2024-11-28 03:40:29,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:29,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:40:37,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:37,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79719540] [2024-11-28 03:40:37,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79719540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:37,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:37,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:40:37,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102350755] [2024-11-28 03:40:37,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:37,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:40:37,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:37,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:40:37,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:40:37,209 INFO L87 Difference]: Start difference. First operand 1398 states and 2042 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:40:41,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:40:41,155 INFO L93 Difference]: Finished difference Result 2434 states and 3513 transitions. [2024-11-28 03:40:41,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:40:41,156 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 281 [2024-11-28 03:40:41,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:40:41,164 INFO L225 Difference]: With dead ends: 2434 [2024-11-28 03:40:41,164 INFO L226 Difference]: Without dead ends: 1670 [2024-11-28 03:40:41,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:40:41,171 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 336 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:40:41,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1560 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:40:41,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2024-11-28 03:40:41,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1394. [2024-11-28 03:40:41,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1219 states have (on average 1.3945857260049221) internal successors, (1700), 1221 states have internal predecessors, (1700), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:40:41,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2028 transitions. [2024-11-28 03:40:41,335 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2028 transitions. Word has length 281 [2024-11-28 03:40:41,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:40:41,336 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 2028 transitions. [2024-11-28 03:40:41,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:40:41,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2028 transitions. [2024-11-28 03:40:41,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 03:40:41,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:40:41,338 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:40:41,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:40:41,339 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:40:41,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:41,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1120726327, now seen corresponding path program 1 times [2024-11-28 03:40:41,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:41,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029995348] [2024-11-28 03:40:41,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:41,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:46,712 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:40:46,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:46,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029995348] [2024-11-28 03:40:46,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029995348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:46,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:46,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:40:46,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886412850] [2024-11-28 03:40:46,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:46,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:40:46,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:46,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:40:46,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:40:46,715 INFO L87 Difference]: Start difference. First operand 1394 states and 2028 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:40:50,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:40:50,719 INFO L93 Difference]: Finished difference Result 2316 states and 3416 transitions. [2024-11-28 03:40:50,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:40:50,720 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 281 [2024-11-28 03:40:50,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:40:50,724 INFO L225 Difference]: With dead ends: 2316 [2024-11-28 03:40:50,724 INFO L226 Difference]: Without dead ends: 1700 [2024-11-28 03:40:50,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:40:50,727 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 316 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:40:50,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 815 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:40:50,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2024-11-28 03:40:50,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1406. [2024-11-28 03:40:50,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1231 states have (on average 1.3939886271324127) internal successors, (1716), 1233 states have internal predecessors, (1716), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:40:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 2044 transitions. [2024-11-28 03:40:50,848 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 2044 transitions. Word has length 281 [2024-11-28 03:40:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:40:50,848 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 2044 transitions. [2024-11-28 03:40:50,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:40:50,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 2044 transitions. [2024-11-28 03:40:50,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-28 03:40:50,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:40:50,851 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:40:50,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:40:50,852 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:40:50,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash -312176249, now seen corresponding path program 1 times [2024-11-28 03:40:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:50,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620397070] [2024-11-28 03:40:50,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:50,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:55,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:41:55,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:55,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620397070] [2024-11-28 03:41:55,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620397070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:55,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:55,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:41:55,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550315543] [2024-11-28 03:41:55,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:55,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:41:55,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:55,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:41:55,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:41:55,100 INFO L87 Difference]: Start difference. First operand 1406 states and 2044 transitions. Second operand has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:41:58,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:58,791 INFO L93 Difference]: Finished difference Result 1892 states and 2699 transitions. [2024-11-28 03:41:58,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:41:58,792 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 282 [2024-11-28 03:41:58,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:58,799 INFO L225 Difference]: With dead ends: 1892 [2024-11-28 03:41:58,799 INFO L226 Difference]: Without dead ends: 1890 [2024-11-28 03:41:58,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:41:58,801 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 665 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:58,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1398 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:41:58,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-11-28 03:41:59,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1462. [2024-11-28 03:41:59,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1287 states have (on average 1.4001554001554002) internal successors, (1802), 1289 states have internal predecessors, (1802), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:41:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2130 transitions. [2024-11-28 03:41:59,035 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2130 transitions. Word has length 282 [2024-11-28 03:41:59,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:59,036 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 2130 transitions. [2024-11-28 03:41:59,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:41:59,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2130 transitions. [2024-11-28 03:41:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-28 03:41:59,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:59,039 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:59,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:41:59,040 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:59,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:59,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1323293499, now seen corresponding path program 1 times [2024-11-28 03:41:59,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:59,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408907330] [2024-11-28 03:41:59,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:59,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:41:59,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:59,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408907330] [2024-11-28 03:41:59,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408907330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:59,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:59,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:41:59,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109202020] [2024-11-28 03:41:59,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:59,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:41:59,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:59,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:41:59,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:41:59,190 INFO L87 Difference]: Start difference. First operand 1462 states and 2130 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:41:59,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:59,352 INFO L93 Difference]: Finished difference Result 2438 states and 3565 transitions. [2024-11-28 03:41:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:41:59,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 282 [2024-11-28 03:41:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:59,360 INFO L225 Difference]: With dead ends: 2438 [2024-11-28 03:41:59,360 INFO L226 Difference]: Without dead ends: 1606 [2024-11-28 03:41:59,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:41:59,364 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 10 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:59,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 415 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:41:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-11-28 03:41:59,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1456. [2024-11-28 03:41:59,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1281 states have (on average 1.375487900078064) internal successors, (1762), 1283 states have internal predecessors, (1762), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:41:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 2090 transitions. [2024-11-28 03:41:59,584 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 2090 transitions. Word has length 282 [2024-11-28 03:41:59,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:59,585 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 2090 transitions. [2024-11-28 03:41:59,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:41:59,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 2090 transitions. [2024-11-28 03:41:59,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-28 03:41:59,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:59,588 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:59,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:41:59,589 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:59,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:59,589 INFO L85 PathProgramCache]: Analyzing trace with hash 110525577, now seen corresponding path program 1 times [2024-11-28 03:41:59,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:59,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255292210] [2024-11-28 03:41:59,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:59,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:43:04,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:04,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255292210] [2024-11-28 03:43:04,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255292210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:04,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:04,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:43:04,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525678326] [2024-11-28 03:43:04,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:04,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:43:04,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:04,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:43:04,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:43:04,691 INFO L87 Difference]: Start difference. First operand 1456 states and 2090 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:43:08,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:43:08,783 INFO L93 Difference]: Finished difference Result 1822 states and 2554 transitions. [2024-11-28 03:43:08,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:43:08,784 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 282 [2024-11-28 03:43:08,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:43:08,792 INFO L225 Difference]: With dead ends: 1822 [2024-11-28 03:43:08,792 INFO L226 Difference]: Without dead ends: 1820 [2024-11-28 03:43:08,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:43:08,794 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 471 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:43:08,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1436 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 03:43:08,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2024-11-28 03:43:09,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1506. [2024-11-28 03:43:09,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1331 states have (on average 1.3764087152516904) internal successors, (1832), 1333 states have internal predecessors, (1832), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:43:09,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2160 transitions. [2024-11-28 03:43:09,020 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2160 transitions. Word has length 282 [2024-11-28 03:43:09,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:43:09,020 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2160 transitions. [2024-11-28 03:43:09,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:43:09,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2160 transitions. [2024-11-28 03:43:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-28 03:43:09,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:43:09,024 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:09,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:43:09,024 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:43:09,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:09,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1281812821, now seen corresponding path program 1 times [2024-11-28 03:43:09,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:09,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795699504] [2024-11-28 03:43:09,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:09,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:43:28,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:28,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795699504] [2024-11-28 03:43:28,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795699504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:28,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:28,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:43:28,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479698028] [2024-11-28 03:43:28,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:28,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:43:28,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:28,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:43:28,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:43:28,832 INFO L87 Difference]: Start difference. First operand 1506 states and 2160 transitions. Second operand has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:43:40,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:43:40,062 INFO L93 Difference]: Finished difference Result 2880 states and 4142 transitions. [2024-11-28 03:43:40,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:43:40,063 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 282 [2024-11-28 03:43:40,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:43:40,068 INFO L225 Difference]: With dead ends: 2880 [2024-11-28 03:43:40,068 INFO L226 Difference]: Without dead ends: 2204 [2024-11-28 03:43:40,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:43:40,070 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 622 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:43:40,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1557 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-28 03:43:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2024-11-28 03:43:40,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 1414. [2024-11-28 03:43:40,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1239 states have (on average 1.3688458434221147) internal successors, (1696), 1241 states have internal predecessors, (1696), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:43:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2024 transitions. [2024-11-28 03:43:40,194 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2024 transitions. Word has length 282 [2024-11-28 03:43:40,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:43:40,195 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 2024 transitions. [2024-11-28 03:43:40,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:43:40,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2024 transitions. [2024-11-28 03:43:40,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-28 03:43:40,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:43:40,198 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:40,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:43:40,198 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:43:40,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:40,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1238147113, now seen corresponding path program 1 times [2024-11-28 03:43:40,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:40,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397648183] [2024-11-28 03:43:40,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:40,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:43:46,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:46,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397648183] [2024-11-28 03:43:46,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397648183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:46,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:46,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:43:46,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323218503] [2024-11-28 03:43:46,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:46,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:43:46,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:46,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:43:46,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:43:46,841 INFO L87 Difference]: Start difference. First operand 1414 states and 2024 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:43:52,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:43:52,777 INFO L93 Difference]: Finished difference Result 2464 states and 3560 transitions. [2024-11-28 03:43:52,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:43:52,778 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 282 [2024-11-28 03:43:52,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:43:52,785 INFO L225 Difference]: With dead ends: 2464 [2024-11-28 03:43:52,785 INFO L226 Difference]: Without dead ends: 1816 [2024-11-28 03:43:52,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:43:52,788 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 299 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:43:52,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1273 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:43:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2024-11-28 03:43:52,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1390. [2024-11-28 03:43:52,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1215 states have (on average 1.362962962962963) internal successors, (1656), 1217 states have internal predecessors, (1656), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:43:52,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1984 transitions. [2024-11-28 03:43:52,976 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1984 transitions. Word has length 282 [2024-11-28 03:43:52,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:43:52,977 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 1984 transitions. [2024-11-28 03:43:52,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:43:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1984 transitions. [2024-11-28 03:43:52,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-28 03:43:52,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:43:52,979 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:52,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:43:52,980 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:43:52,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1961871191, now seen corresponding path program 1 times [2024-11-28 03:43:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:52,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317223453] [2024-11-28 03:43:52,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:44:00,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:00,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317223453] [2024-11-28 03:44:00,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317223453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:00,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:00,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:44:00,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314360487] [2024-11-28 03:44:00,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:00,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:44:00,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:00,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:44:00,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:44:00,398 INFO L87 Difference]: Start difference. First operand 1390 states and 1984 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:05,240 INFO L93 Difference]: Finished difference Result 2492 states and 3531 transitions. [2024-11-28 03:44:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:44:05,241 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 282 [2024-11-28 03:44:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:05,245 INFO L225 Difference]: With dead ends: 2492 [2024-11-28 03:44:05,246 INFO L226 Difference]: Without dead ends: 1796 [2024-11-28 03:44:05,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:44:05,248 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 638 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:05,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1223 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:44:05,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2024-11-28 03:44:05,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1426. [2024-11-28 03:44:05,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1251 states have (on average 1.3621103117505995) internal successors, (1704), 1253 states have internal predecessors, (1704), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:44:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2032 transitions. [2024-11-28 03:44:05,448 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2032 transitions. Word has length 282 [2024-11-28 03:44:05,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:05,449 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2032 transitions. [2024-11-28 03:44:05,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:05,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2032 transitions. [2024-11-28 03:44:05,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-28 03:44:05,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:05,452 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:05,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:44:05,452 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:05,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:05,452 INFO L85 PathProgramCache]: Analyzing trace with hash -558088743, now seen corresponding path program 1 times [2024-11-28 03:44:05,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:05,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55349621] [2024-11-28 03:44:05,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:05,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:44:14,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:14,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55349621] [2024-11-28 03:44:14,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55349621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:14,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:14,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:44:14,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127155604] [2024-11-28 03:44:14,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:14,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:44:14,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:14,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:44:14,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:44:14,716 INFO L87 Difference]: Start difference. First operand 1426 states and 2032 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:44:20,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:20,329 INFO L93 Difference]: Finished difference Result 2542 states and 3605 transitions. [2024-11-28 03:44:20,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:44:20,330 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 282 [2024-11-28 03:44:20,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:20,337 INFO L225 Difference]: With dead ends: 2542 [2024-11-28 03:44:20,337 INFO L226 Difference]: Without dead ends: 1866 [2024-11-28 03:44:20,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:44:20,340 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 398 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:20,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1599 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 03:44:20,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2024-11-28 03:44:20,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1454. [2024-11-28 03:44:20,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1279 states have (on average 1.3635652853792024) internal successors, (1744), 1281 states have internal predecessors, (1744), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:44:20,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 2072 transitions. [2024-11-28 03:44:20,554 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 2072 transitions. Word has length 282 [2024-11-28 03:44:20,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:20,555 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 2072 transitions. [2024-11-28 03:44:20,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:44:20,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 2072 transitions. [2024-11-28 03:44:20,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-28 03:44:20,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:20,558 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:20,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:44:20,559 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:20,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:20,559 INFO L85 PathProgramCache]: Analyzing trace with hash 213592448, now seen corresponding path program 1 times [2024-11-28 03:44:20,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:20,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711317647] [2024-11-28 03:44:20,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:20,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:44:21,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711317647] [2024-11-28 03:44:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711317647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:21,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:21,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:44:21,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561540985] [2024-11-28 03:44:21,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:21,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:44:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:21,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:44:21,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:44:21,085 INFO L87 Difference]: Start difference. First operand 1454 states and 2072 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:22,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:22,077 INFO L93 Difference]: Finished difference Result 2160 states and 3134 transitions. [2024-11-28 03:44:22,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:44:22,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 283 [2024-11-28 03:44:22,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:22,083 INFO L225 Difference]: With dead ends: 2160 [2024-11-28 03:44:22,083 INFO L226 Difference]: Without dead ends: 1508 [2024-11-28 03:44:22,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:44:22,085 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 170 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:22,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 907 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:44:22,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-11-28 03:44:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1450. [2024-11-28 03:44:22,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1275 states have (on average 1.3584313725490196) internal successors, (1732), 1277 states have internal predecessors, (1732), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:44:22,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2060 transitions. [2024-11-28 03:44:22,304 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2060 transitions. Word has length 283 [2024-11-28 03:44:22,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:22,305 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 2060 transitions. [2024-11-28 03:44:22,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:22,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2060 transitions. [2024-11-28 03:44:22,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-28 03:44:22,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:22,308 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:22,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:44:22,308 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:22,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:22,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1114654974, now seen corresponding path program 1 times [2024-11-28 03:44:22,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:22,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733723418] [2024-11-28 03:44:22,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:22,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:22,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:44:22,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:22,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733723418] [2024-11-28 03:44:22,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733723418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:22,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:22,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:44:22,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102752506] [2024-11-28 03:44:22,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:22,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:44:22,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:22,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:44:22,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:44:22,906 INFO L87 Difference]: Start difference. First operand 1450 states and 2060 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:23,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:23,540 INFO L93 Difference]: Finished difference Result 2324 states and 3316 transitions. [2024-11-28 03:44:23,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:44:23,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 283 [2024-11-28 03:44:23,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:23,544 INFO L225 Difference]: With dead ends: 2324 [2024-11-28 03:44:23,545 INFO L226 Difference]: Without dead ends: 1506 [2024-11-28 03:44:23,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:44:23,546 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 167 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:23,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 646 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:44:23,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-28 03:44:23,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1448. [2024-11-28 03:44:23,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1273 states have (on average 1.3574234092694422) internal successors, (1728), 1275 states have internal predecessors, (1728), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:44:23,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2056 transitions. [2024-11-28 03:44:23,669 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2056 transitions. Word has length 283 [2024-11-28 03:44:23,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:23,670 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2056 transitions. [2024-11-28 03:44:23,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2056 transitions. [2024-11-28 03:44:23,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-28 03:44:23,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:23,672 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:23,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:44:23,673 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:23,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:23,673 INFO L85 PathProgramCache]: Analyzing trace with hash -615513067, now seen corresponding path program 1 times [2024-11-28 03:44:23,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:23,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078108180] [2024-11-28 03:44:23,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:23,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:44:26,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:26,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078108180] [2024-11-28 03:44:26,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078108180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:26,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:26,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:44:26,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448147470] [2024-11-28 03:44:26,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:26,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:44:26,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:26,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:44:26,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:44:26,677 INFO L87 Difference]: Start difference. First operand 1448 states and 2056 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:29,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:29,650 INFO L93 Difference]: Finished difference Result 2556 states and 3603 transitions. [2024-11-28 03:44:29,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:44:29,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 284 [2024-11-28 03:44:29,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:29,654 INFO L225 Difference]: With dead ends: 2556 [2024-11-28 03:44:29,655 INFO L226 Difference]: Without dead ends: 1468 [2024-11-28 03:44:29,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:44:29,657 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 262 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:29,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1104 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:44:29,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-11-28 03:44:29,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1288. [2024-11-28 03:44:29,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1113 states have (on average 1.3548966756513927) internal successors, (1508), 1115 states have internal predecessors, (1508), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:44:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1836 transitions. [2024-11-28 03:44:29,906 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1836 transitions. Word has length 284 [2024-11-28 03:44:29,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:29,906 INFO L471 AbstractCegarLoop]: Abstraction has 1288 states and 1836 transitions. [2024-11-28 03:44:29,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:29,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1836 transitions. [2024-11-28 03:44:29,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-28 03:44:29,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:29,909 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:29,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:44:29,910 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:29,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:29,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1159494295, now seen corresponding path program 1 times [2024-11-28 03:44:29,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:29,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827764357] [2024-11-28 03:44:29,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:29,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:44:38,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:38,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827764357] [2024-11-28 03:44:38,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827764357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:38,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:38,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:44:38,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543624781] [2024-11-28 03:44:38,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:38,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:44:38,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:38,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:44:38,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:44:38,072 INFO L87 Difference]: Start difference. First operand 1288 states and 1836 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:43,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:43,724 INFO L93 Difference]: Finished difference Result 2362 states and 3336 transitions. [2024-11-28 03:44:43,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:44:43,725 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 284 [2024-11-28 03:44:43,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:43,731 INFO L225 Difference]: With dead ends: 2362 [2024-11-28 03:44:43,731 INFO L226 Difference]: Without dead ends: 1714 [2024-11-28 03:44:43,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:44:43,735 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 267 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:43,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1488 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 03:44:43,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2024-11-28 03:44:43,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1256. [2024-11-28 03:44:43,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 1081 states have (on average 1.3580018501387605) internal successors, (1468), 1083 states have internal predecessors, (1468), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:44:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1796 transitions. [2024-11-28 03:44:43,966 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1796 transitions. Word has length 284 [2024-11-28 03:44:43,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:43,967 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 1796 transitions. [2024-11-28 03:44:43,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:43,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1796 transitions. [2024-11-28 03:44:43,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-28 03:44:43,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:43,970 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:43,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:44:43,971 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:43,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:43,971 INFO L85 PathProgramCache]: Analyzing trace with hash -745280078, now seen corresponding path program 1 times [2024-11-28 03:44:43,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:43,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415647473] [2024-11-28 03:44:43,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:43,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:44:44,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:44,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415647473] [2024-11-28 03:44:44,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415647473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:44,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:44,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:44:44,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600475126] [2024-11-28 03:44:44,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:44,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:44:44,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:44,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:44:44,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:44:44,446 INFO L87 Difference]: Start difference. First operand 1256 states and 1796 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:45,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:45,419 INFO L93 Difference]: Finished difference Result 1982 states and 2878 transitions. [2024-11-28 03:44:45,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:44:45,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 286 [2024-11-28 03:44:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:45,424 INFO L225 Difference]: With dead ends: 1982 [2024-11-28 03:44:45,424 INFO L226 Difference]: Without dead ends: 1330 [2024-11-28 03:44:45,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:44:45,426 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 176 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:45,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 928 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:44:45,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2024-11-28 03:44:45,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1248. [2024-11-28 03:44:45,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1073 states have (on average 1.3569431500465983) internal successors, (1456), 1075 states have internal predecessors, (1456), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:44:45,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1784 transitions. [2024-11-28 03:44:45,671 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1784 transitions. Word has length 286 [2024-11-28 03:44:45,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:45,672 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 1784 transitions. [2024-11-28 03:44:45,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:45,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1784 transitions. [2024-11-28 03:44:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-28 03:44:45,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:45,675 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:45,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:44:45,676 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:45,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:45,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1074327546, now seen corresponding path program 1 times [2024-11-28 03:44:45,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:45,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316292847] [2024-11-28 03:44:45,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:45,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:44:45,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:45,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316292847] [2024-11-28 03:44:45,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316292847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:45,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:45,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:44:45,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537978405] [2024-11-28 03:44:45,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:45,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:44:45,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:45,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:44:45,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:44:45,856 INFO L87 Difference]: Start difference. First operand 1248 states and 1784 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:46,105 INFO L93 Difference]: Finished difference Result 2114 states and 3084 transitions. [2024-11-28 03:44:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:44:46,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 287 [2024-11-28 03:44:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:46,109 INFO L225 Difference]: With dead ends: 2114 [2024-11-28 03:44:46,109 INFO L226 Difference]: Without dead ends: 1442 [2024-11-28 03:44:46,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:44:46,111 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 36 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:46,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 398 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:44:46,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2024-11-28 03:44:46,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1304. [2024-11-28 03:44:46,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1129 states have (on average 1.3658104517271923) internal successors, (1542), 1131 states have internal predecessors, (1542), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:44:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1870 transitions. [2024-11-28 03:44:46,294 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1870 transitions. Word has length 287 [2024-11-28 03:44:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:46,295 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1870 transitions. [2024-11-28 03:44:46,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:46,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1870 transitions. [2024-11-28 03:44:46,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-28 03:44:46,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:46,297 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:46,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 03:44:46,298 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:46,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:46,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1322532855, now seen corresponding path program 1 times [2024-11-28 03:44:46,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:46,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421042994] [2024-11-28 03:44:46,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:46,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:50,343 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:44:50,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:50,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421042994] [2024-11-28 03:44:50,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421042994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:50,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:50,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:44:50,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373606252] [2024-11-28 03:44:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:50,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:44:50,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:50,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:44:50,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:44:50,345 INFO L87 Difference]: Start difference. First operand 1304 states and 1870 transitions. Second operand has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:55,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:55,063 INFO L93 Difference]: Finished difference Result 2214 states and 3190 transitions. [2024-11-28 03:44:55,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:44:55,064 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 289 [2024-11-28 03:44:55,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:55,067 INFO L225 Difference]: With dead ends: 2214 [2024-11-28 03:44:55,067 INFO L226 Difference]: Without dead ends: 1418 [2024-11-28 03:44:55,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:44:55,069 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 410 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:55,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1537 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:44:55,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-11-28 03:44:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1324. [2024-11-28 03:44:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1149 states have (on average 1.359442993907746) internal successors, (1562), 1151 states have internal predecessors, (1562), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:44:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1890 transitions. [2024-11-28 03:44:55,291 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1890 transitions. Word has length 289 [2024-11-28 03:44:55,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:55,292 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 1890 transitions. [2024-11-28 03:44:55,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:44:55,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1890 transitions. [2024-11-28 03:44:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-28 03:44:55,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:55,295 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:55,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 03:44:55,295 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:55,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1951366087, now seen corresponding path program 1 times [2024-11-28 03:44:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:55,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550416646] [2024-11-28 03:44:55,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:55,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:45:59,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550416646] [2024-11-28 03:45:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550416646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:59,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:59,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 03:45:59,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109964447] [2024-11-28 03:45:59,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:59,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:45:59,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:59,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:45:59,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:45:59,543 INFO L87 Difference]: Start difference. First operand 1324 states and 1890 transitions. Second operand has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:46:07,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:07,510 INFO L93 Difference]: Finished difference Result 1618 states and 2206 transitions. [2024-11-28 03:46:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:46:07,511 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 289 [2024-11-28 03:46:07,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:07,515 INFO L225 Difference]: With dead ends: 1618 [2024-11-28 03:46:07,515 INFO L226 Difference]: Without dead ends: 1616 [2024-11-28 03:46:07,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=380, Invalid=1690, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:46:07,517 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 557 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:07,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1584 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 03:46:07,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-28 03:46:07,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1354. [2024-11-28 03:46:07,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1179 states have (on average 1.3553859202714165) internal successors, (1598), 1181 states have internal predecessors, (1598), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:46:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1926 transitions. [2024-11-28 03:46:07,765 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1926 transitions. Word has length 289 [2024-11-28 03:46:07,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:07,766 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 1926 transitions. [2024-11-28 03:46:07,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:46:07,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1926 transitions. [2024-11-28 03:46:07,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-28 03:46:07,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:07,767 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:07,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 03:46:07,768 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:07,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:07,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2013405701, now seen corresponding path program 1 times [2024-11-28 03:46:07,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:07,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284929515] [2024-11-28 03:46:07,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:07,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:16,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:47:16,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:16,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284929515] [2024-11-28 03:47:16,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284929515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:16,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:16,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 03:47:16,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645067586] [2024-11-28 03:47:16,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:16,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:47:16,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:16,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:47:16,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:47:16,034 INFO L87 Difference]: Start difference. First operand 1354 states and 1926 transitions. Second operand has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:47:29,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:29,174 INFO L93 Difference]: Finished difference Result 1722 states and 2319 transitions. [2024-11-28 03:47:29,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:47:29,175 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 289 [2024-11-28 03:47:29,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:29,180 INFO L225 Difference]: With dead ends: 1722 [2024-11-28 03:47:29,180 INFO L226 Difference]: Without dead ends: 1720 [2024-11-28 03:47:29,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=375, Invalid=1695, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:47:29,182 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 378 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 2167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:29,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1786 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-28 03:47:29,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2024-11-28 03:47:29,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1384. [2024-11-28 03:47:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1209 states have (on average 1.3515301902398678) internal successors, (1634), 1211 states have internal predecessors, (1634), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:47:29,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1962 transitions. [2024-11-28 03:47:29,454 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1962 transitions. Word has length 289 [2024-11-28 03:47:29,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:29,455 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 1962 transitions. [2024-11-28 03:47:29,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:47:29,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1962 transitions. [2024-11-28 03:47:29,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-28 03:47:29,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:29,458 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:47:29,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 03:47:29,459 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:29,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:29,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2054288393, now seen corresponding path program 1 times [2024-11-28 03:47:29,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:29,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194542625] [2024-11-28 03:47:29,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:29,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:30,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:47:30,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:30,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194542625] [2024-11-28 03:47:30,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194542625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:30,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:30,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:47:30,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055468472] [2024-11-28 03:47:30,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:30,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:47:30,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:30,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:47:30,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:47:30,629 INFO L87 Difference]: Start difference. First operand 1384 states and 1962 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:47:33,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:33,312 INFO L93 Difference]: Finished difference Result 2378 states and 3372 transitions. [2024-11-28 03:47:33,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:47:33,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 289 [2024-11-28 03:47:33,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:33,316 INFO L225 Difference]: With dead ends: 2378 [2024-11-28 03:47:33,316 INFO L226 Difference]: Without dead ends: 1582 [2024-11-28 03:47:33,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:47:33,318 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 216 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:33,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1352 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:47:33,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2024-11-28 03:47:33,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1408. [2024-11-28 03:47:33,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1233 states have (on average 1.3446877534468775) internal successors, (1658), 1235 states have internal predecessors, (1658), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:47:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1986 transitions. [2024-11-28 03:47:33,501 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1986 transitions. Word has length 289 [2024-11-28 03:47:33,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:33,501 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1986 transitions. [2024-11-28 03:47:33,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 03:47:33,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1986 transitions. [2024-11-28 03:47:33,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-28 03:47:33,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:33,504 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:47:33,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 03:47:33,505 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:33,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:33,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2099388924, now seen corresponding path program 1 times [2024-11-28 03:47:33,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:33,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298780453] [2024-11-28 03:47:33,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:33,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:37,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-28 03:48:37,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:37,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298780453] [2024-11-28 03:48:37,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298780453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:48:37,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:48:37,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 03:48:37,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695229172] [2024-11-28 03:48:37,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:37,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 03:48:37,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:37,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 03:48:37,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:48:37,524 INFO L87 Difference]: Start difference. First operand 1408 states and 1986 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:48:46,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:48:46,094 INFO L93 Difference]: Finished difference Result 1638 states and 2227 transitions. [2024-11-28 03:48:46,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 03:48:46,095 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 290 [2024-11-28 03:48:46,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:48:46,098 INFO L225 Difference]: With dead ends: 1638 [2024-11-28 03:48:46,099 INFO L226 Difference]: Without dead ends: 1636 [2024-11-28 03:48:46,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 03:48:46,100 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 506 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:48:46,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1928 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 03:48:46,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2024-11-28 03:48:46,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1402. [2024-11-28 03:48:46,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1227 states have (on average 1.3431132844335778) internal successors, (1648), 1229 states have internal predecessors, (1648), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 03:48:46,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1976 transitions. [2024-11-28 03:48:46,290 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1976 transitions. Word has length 290 [2024-11-28 03:48:46,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:48:46,290 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 1976 transitions. [2024-11-28 03:48:46,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-28 03:48:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1976 transitions. [2024-11-28 03:48:46,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-28 03:48:46,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:46,292 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:48:46,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 03:48:46,293 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:46,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:46,293 INFO L85 PathProgramCache]: Analyzing trace with hash -272350338, now seen corresponding path program 1 times [2024-11-28 03:48:46,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:46,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639942798] [2024-11-28 03:48:46,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:46,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat