./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-55.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_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1 --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 76c41dcfd5a0fc565e04810ec1e9f02e7d99352e7ba5541d180a675862fbcc19 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:12:04,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:12:05,042 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:12:05,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:12:05,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:12:05,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:12:05,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:12:05,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:12:05,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:12:05,070 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:12:05,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:12:05,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:12:05,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:12:05,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:12:05,071 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:12:05,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:12:05,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:12:05,071 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:12:05,071 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:12:05,072 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:12:05,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:12:05,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:12:05,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:12:05,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:12:05,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:12:05,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:12:05,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:12:05,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:12:05,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:12:05,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:12:05,074 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_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1 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 -> 76c41dcfd5a0fc565e04810ec1e9f02e7d99352e7ba5541d180a675862fbcc19 [2024-12-02 15:12:05,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:12:05,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:12:05,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:12:05,317 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:12:05,317 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:12:05,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-55.i [2024-12-02 15:12:07,918 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/data/63f88625e/bfce006f162345d797594626910895dc/FLAG6d85b3676 [2024-12-02 15:12:08,168 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:12:08,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-55.i [2024-12-02 15:12:08,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/data/63f88625e/bfce006f162345d797594626910895dc/FLAG6d85b3676 [2024-12-02 15:12:08,481 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/data/63f88625e/bfce006f162345d797594626910895dc [2024-12-02 15:12:08,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:12:08,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:12:08,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:12:08,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:12:08,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:12:08,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:08,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413367fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08, skipping insertion in model container [2024-12-02 15:12:08,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:08,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:12:08,637 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_2d84ef3a-ce95-4c8b-88ff-780cf80da601/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-55.i[916,929] [2024-12-02 15:12:08,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:12:08,804 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:12:08,812 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_2d84ef3a-ce95-4c8b-88ff-780cf80da601/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-55.i[916,929] [2024-12-02 15:12:08,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:12:08,902 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:12:08,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08 WrapperNode [2024-12-02 15:12:08,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:12:08,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:12:08,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:12:08,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:12:08,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:08,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:08,984 INFO L138 Inliner]: procedures = 26, calls = 131, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 913 [2024-12-02 15:12:08,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:12:08,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:12:08,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:12:08,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:12:08,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:08,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,038 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]. [2024-12-02 15:12:09,038 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,059 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,086 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:12:09,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:12:09,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:12:09,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:12:09,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (1/1) ... [2024-12-02 15:12:09,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:12:09,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:09,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:12:09,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84ef3a-ce95-4c8b-88ff-780cf80da601/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:12:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:12:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:12:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:12:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:12:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:12:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:12:09,270 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:12:09,272 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:12:10,469 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-12-02 15:12:10,469 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:12:10,489 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:12:10,489 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:12:10,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:10 BoogieIcfgContainer [2024-12-02 15:12:10,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:12:10,492 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:12:10,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:12:10,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:12:10,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:12:08" (1/3) ... [2024-12-02 15:12:10,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502a09c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:10, skipping insertion in model container [2024-12-02 15:12:10,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:08" (2/3) ... [2024-12-02 15:12:10,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502a09c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:10, skipping insertion in model container [2024-12-02 15:12:10,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:10" (3/3) ... [2024-12-02 15:12:10,499 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-55.i [2024-12-02 15:12:10,515 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:12:10,518 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-55.i that has 2 procedures, 373 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:12:10,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:12:10,602 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;@1ddef4f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:12:10,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:12:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 373 states, 252 states have (on average 1.5793650793650793) internal successors, (398), 253 states have internal predecessors, (398), 118 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 15:12:10,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2024-12-02 15:12:10,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:10,645 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:10,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:10,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:10,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1038205660, now seen corresponding path program 1 times [2024-12-02 15:12:10,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:10,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33524762] [2024-12-02 15:12:10,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:10,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:11,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:11,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33524762] [2024-12-02 15:12:11,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33524762] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:11,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:11,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:12:11,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482097743] [2024-12-02 15:12:11,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:11,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:12:11,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:11,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:12:11,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:12:11,441 INFO L87 Difference]: Start difference. First operand has 373 states, 252 states have (on average 1.5793650793650793) internal successors, (398), 253 states have internal predecessors, (398), 118 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:11,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:11,510 INFO L93 Difference]: Finished difference Result 739 states and 1380 transitions. [2024-12-02 15:12:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:12:11,511 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 752 [2024-12-02 15:12:11,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:11,525 INFO L225 Difference]: With dead ends: 739 [2024-12-02 15:12:11,525 INFO L226 Difference]: Without dead ends: 369 [2024-12-02 15:12:11,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:12:11,534 INFO L435 NwaCegarLoop]: 622 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, 622 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 [2024-12-02 15:12:11,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-12-02 15:12:11,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2024-12-02 15:12:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 249 states have (on average 1.5502008032128514) internal successors, (386), 249 states have internal predecessors, (386), 118 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 15:12:11,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 622 transitions. [2024-12-02 15:12:11,615 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 622 transitions. Word has length 752 [2024-12-02 15:12:11,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:11,619 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 622 transitions. [2024-12-02 15:12:11,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:11,620 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 622 transitions. [2024-12-02 15:12:11,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2024-12-02 15:12:11,638 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:11,639 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:11,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:12:11,639 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:11,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:11,640 INFO L85 PathProgramCache]: Analyzing trace with hash 473020067, now seen corresponding path program 1 times [2024-12-02 15:12:11,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:11,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624103314] [2024-12-02 15:12:11,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:11,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:12,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:12,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624103314] [2024-12-02 15:12:12,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624103314] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:12,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:12,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:12:12,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81886762] [2024-12-02 15:12:12,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:12,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:12:12,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:12,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:12:12,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:12,671 INFO L87 Difference]: Start difference. First operand 369 states and 622 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:12,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:12,788 INFO L93 Difference]: Finished difference Result 1101 states and 1860 transitions. [2024-12-02 15:12:12,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:12:12,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 753 [2024-12-02 15:12:12,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:12,797 INFO L225 Difference]: With dead ends: 1101 [2024-12-02 15:12:12,797 INFO L226 Difference]: Without dead ends: 735 [2024-12-02 15:12:12,799 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 [2024-12-02 15:12:12,800 INFO L435 NwaCegarLoop]: 923 mSDtfsCounter, 616 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:12,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 1529 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:12,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-12-02 15:12:12,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 733. [2024-12-02 15:12:12,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 494 states have (on average 1.5526315789473684) internal successors, (767), 494 states have internal predecessors, (767), 236 states have call successors, (236), 2 states have call predecessors, (236), 2 states have return successors, (236), 236 states have call predecessors, (236), 236 states have call successors, (236) [2024-12-02 15:12:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1239 transitions. [2024-12-02 15:12:12,898 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1239 transitions. Word has length 753 [2024-12-02 15:12:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:12,900 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 1239 transitions. [2024-12-02 15:12:12,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1239 transitions. [2024-12-02 15:12:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2024-12-02 15:12:12,908 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:12,908 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:12,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:12:12,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:12,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:12,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1467561947, now seen corresponding path program 1 times [2024-12-02 15:12:12,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:12,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503397694] [2024-12-02 15:12:12,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:12,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:13,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:13,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503397694] [2024-12-02 15:12:13,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503397694] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:13,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:13,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:12:13,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346793061] [2024-12-02 15:12:13,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:13,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:12:13,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:13,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:12:13,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:13,396 INFO L87 Difference]: Start difference. First operand 733 states and 1239 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:13,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:13,464 INFO L93 Difference]: Finished difference Result 1471 states and 2489 transitions. [2024-12-02 15:12:13,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:12:13,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 753 [2024-12-02 15:12:13,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:13,470 INFO L225 Difference]: With dead ends: 1471 [2024-12-02 15:12:13,470 INFO L226 Difference]: Without dead ends: 741 [2024-12-02 15:12:13,472 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 [2024-12-02 15:12:13,472 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 3 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:13,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1228 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:13,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-12-02 15:12:13,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 739. [2024-12-02 15:12:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 500 states have (on average 1.55) internal successors, (775), 500 states have internal predecessors, (775), 236 states have call successors, (236), 2 states have call predecessors, (236), 2 states have return successors, (236), 236 states have call predecessors, (236), 236 states have call successors, (236) [2024-12-02 15:12:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1247 transitions. [2024-12-02 15:12:13,533 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1247 transitions. Word has length 753 [2024-12-02 15:12:13,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:13,534 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1247 transitions. [2024-12-02 15:12:13,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:13,535 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1247 transitions. [2024-12-02 15:12:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-12-02 15:12:13,540 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:13,540 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:13,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:12:13,540 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:13,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:13,541 INFO L85 PathProgramCache]: Analyzing trace with hash 423455192, now seen corresponding path program 1 times [2024-12-02 15:12:13,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:13,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036643573] [2024-12-02 15:12:13,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:13,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:13,810 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:13,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:13,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036643573] [2024-12-02 15:12:13,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036643573] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:13,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:13,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:12:13,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632143608] [2024-12-02 15:12:13,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:13,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:12:13,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:13,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:12:13,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:13,814 INFO L87 Difference]: Start difference. First operand 739 states and 1247 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:13,891 INFO L93 Difference]: Finished difference Result 1945 states and 3292 transitions. [2024-12-02 15:12:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:12:13,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 754 [2024-12-02 15:12:13,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:13,899 INFO L225 Difference]: With dead ends: 1945 [2024-12-02 15:12:13,899 INFO L226 Difference]: Without dead ends: 1209 [2024-12-02 15:12:13,901 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 [2024-12-02 15:12:13,902 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 390 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:13,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1231 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:13,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2024-12-02 15:12:13,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1205. [2024-12-02 15:12:13,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 852 states have (on average 1.573943661971831) internal successors, (1341), 854 states have internal predecessors, (1341), 348 states have call successors, (348), 4 states have call predecessors, (348), 4 states have return successors, (348), 346 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 15:12:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 2037 transitions. [2024-12-02 15:12:14,002 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 2037 transitions. Word has length 754 [2024-12-02 15:12:14,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:14,003 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 2037 transitions. [2024-12-02 15:12:14,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 2037 transitions. [2024-12-02 15:12:14,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-12-02 15:12:14,007 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:14,007 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:14,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:12:14,008 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:14,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:14,008 INFO L85 PathProgramCache]: Analyzing trace with hash -683466668, now seen corresponding path program 1 times [2024-12-02 15:12:14,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:14,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599459481] [2024-12-02 15:12:14,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:14,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:14,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:14,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599459481] [2024-12-02 15:12:14,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599459481] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:14,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:14,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:12:14,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928417859] [2024-12-02 15:12:14,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:14,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:12:14,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:14,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:12:14,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:14,244 INFO L87 Difference]: Start difference. First operand 1205 states and 2037 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:14,369 INFO L93 Difference]: Finished difference Result 3597 states and 6081 transitions. [2024-12-02 15:12:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:12:14,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 754 [2024-12-02 15:12:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:14,382 INFO L225 Difference]: With dead ends: 3597 [2024-12-02 15:12:14,382 INFO L226 Difference]: Without dead ends: 2395 [2024-12-02 15:12:14,386 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 [2024-12-02 15:12:14,387 INFO L435 NwaCegarLoop]: 1111 mSDtfsCounter, 597 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:14,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1716 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:14,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2024-12-02 15:12:14,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 1573. [2024-12-02 15:12:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1220 states have (on average 1.6352459016393444) internal successors, (1995), 1222 states have internal predecessors, (1995), 348 states have call successors, (348), 4 states have call predecessors, (348), 4 states have return successors, (348), 346 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 15:12:14,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2691 transitions. [2024-12-02 15:12:14,593 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2691 transitions. Word has length 754 [2024-12-02 15:12:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:14,594 INFO L471 AbstractCegarLoop]: Abstraction has 1573 states and 2691 transitions. [2024-12-02 15:12:14,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2691 transitions. [2024-12-02 15:12:14,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-12-02 15:12:14,604 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:14,604 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:14,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:12:14,605 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:14,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:14,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1050637782, now seen corresponding path program 1 times [2024-12-02 15:12:14,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:14,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664428167] [2024-12-02 15:12:14,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:14,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:14,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:14,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664428167] [2024-12-02 15:12:14,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664428167] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:14,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:14,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:12:14,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816826221] [2024-12-02 15:12:14,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:14,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:12:14,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:14,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:12:14,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:14,851 INFO L87 Difference]: Start difference. First operand 1573 states and 2691 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:14,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:14,957 INFO L93 Difference]: Finished difference Result 4423 states and 7580 transitions. [2024-12-02 15:12:14,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:12:14,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 754 [2024-12-02 15:12:14,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:14,970 INFO L225 Difference]: With dead ends: 4423 [2024-12-02 15:12:14,970 INFO L226 Difference]: Without dead ends: 2853 [2024-12-02 15:12:14,974 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 [2024-12-02 15:12:14,975 INFO L435 NwaCegarLoop]: 709 mSDtfsCounter, 367 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:14,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1314 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:14,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2024-12-02 15:12:15,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2847. [2024-12-02 15:12:15,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 2306 states have (on average 1.6535125758889853) internal successors, (3813), 2312 states have internal predecessors, (3813), 532 states have call successors, (532), 8 states have call predecessors, (532), 8 states have return successors, (532), 526 states have call predecessors, (532), 532 states have call successors, (532) [2024-12-02 15:12:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 4877 transitions. [2024-12-02 15:12:15,187 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 4877 transitions. Word has length 754 [2024-12-02 15:12:15,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:15,188 INFO L471 AbstractCegarLoop]: Abstraction has 2847 states and 4877 transitions. [2024-12-02 15:12:15,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:15,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 4877 transitions. [2024-12-02 15:12:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-12-02 15:12:15,198 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:15,199 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:15,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:12:15,199 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:15,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:15,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1367266284, now seen corresponding path program 1 times [2024-12-02 15:12:15,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:15,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274954101] [2024-12-02 15:12:15,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:15,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:15,529 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:15,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:15,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274954101] [2024-12-02 15:12:15,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274954101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:15,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:15,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:12:15,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619750068] [2024-12-02 15:12:15,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:15,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:12:15,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:15,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:12:15,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:15,532 INFO L87 Difference]: Start difference. First operand 2847 states and 4877 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:15,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:15,800 INFO L93 Difference]: Finished difference Result 8399 states and 14385 transitions. [2024-12-02 15:12:15,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:12:15,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 754 [2024-12-02 15:12:15,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:15,831 INFO L225 Difference]: With dead ends: 8399 [2024-12-02 15:12:15,831 INFO L226 Difference]: Without dead ends: 5555 [2024-12-02 15:12:15,840 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 [2024-12-02 15:12:15,841 INFO L435 NwaCegarLoop]: 1075 mSDtfsCounter, 592 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:15,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1689 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:15,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5555 states. [2024-12-02 15:12:16,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5555 to 5553. [2024-12-02 15:12:16,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 4472 states have (on average 1.6417710196779964) internal successors, (7342), 4484 states have internal predecessors, (7342), 1064 states have call successors, (1064), 16 states have call predecessors, (1064), 16 states have return successors, (1064), 1052 states have call predecessors, (1064), 1064 states have call successors, (1064) [2024-12-02 15:12:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 9470 transitions. [2024-12-02 15:12:16,326 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 9470 transitions. Word has length 754 [2024-12-02 15:12:16,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:16,327 INFO L471 AbstractCegarLoop]: Abstraction has 5553 states and 9470 transitions. [2024-12-02 15:12:16,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:16,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 9470 transitions. [2024-12-02 15:12:16,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-12-02 15:12:16,339 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:16,340 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:16,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:12:16,340 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:16,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:16,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1761633070, now seen corresponding path program 1 times [2024-12-02 15:12:16,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:16,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832753973] [2024-12-02 15:12:16,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:16,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:16,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:16,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832753973] [2024-12-02 15:12:16,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832753973] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:16,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:16,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:12:16,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383665553] [2024-12-02 15:12:16,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:16,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:12:16,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:16,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:12:16,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:12:16,757 INFO L87 Difference]: Start difference. First operand 5553 states and 9470 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:17,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:17,898 INFO L93 Difference]: Finished difference Result 20257 states and 34170 transitions. [2024-12-02 15:12:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:12:17,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 754 [2024-12-02 15:12:17,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:17,988 INFO L225 Difference]: With dead ends: 20257 [2024-12-02 15:12:17,988 INFO L226 Difference]: Without dead ends: 14707 [2024-12-02 15:12:18,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:12:18,011 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 1321 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:18,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 2087 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:12:18,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14707 states. [2024-12-02 15:12:18,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14707 to 10041. [2024-12-02 15:12:18,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10041 states, 8192 states have (on average 1.634033203125) internal successors, (13386), 8220 states have internal predecessors, (13386), 1816 states have call successors, (1816), 32 states have call predecessors, (1816), 32 states have return successors, (1816), 1788 states have call predecessors, (1816), 1816 states have call successors, (1816) [2024-12-02 15:12:19,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10041 states to 10041 states and 17018 transitions. [2024-12-02 15:12:19,040 INFO L78 Accepts]: Start accepts. Automaton has 10041 states and 17018 transitions. Word has length 754 [2024-12-02 15:12:19,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:19,042 INFO L471 AbstractCegarLoop]: Abstraction has 10041 states and 17018 transitions. [2024-12-02 15:12:19,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:19,043 INFO L276 IsEmpty]: Start isEmpty. Operand 10041 states and 17018 transitions. [2024-12-02 15:12:19,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-12-02 15:12:19,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:19,059 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:19,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:12:19,059 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:19,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:19,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1739000816, now seen corresponding path program 1 times [2024-12-02 15:12:19,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:19,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893178692] [2024-12-02 15:12:19,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:19,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:19,431 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:19,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:19,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893178692] [2024-12-02 15:12:19,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893178692] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:19,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:19,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:12:19,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836157824] [2024-12-02 15:12:19,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:19,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:12:19,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:19,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:12:19,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:19,434 INFO L87 Difference]: Start difference. First operand 10041 states and 17018 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:20,108 INFO L93 Difference]: Finished difference Result 29373 states and 49778 transitions. [2024-12-02 15:12:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:12:20,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 754 [2024-12-02 15:12:20,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:20,187 INFO L225 Difference]: With dead ends: 29373 [2024-12-02 15:12:20,187 INFO L226 Difference]: Without dead ends: 19335 [2024-12-02 15:12:20,215 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 [2024-12-02 15:12:20,215 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 360 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:20,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1227 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:20,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19335 states. [2024-12-02 15:12:21,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19335 to 19329. [2024-12-02 15:12:21,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19329 states, 15816 states have (on average 1.6331562974203337) internal successors, (25830), 15876 states have internal predecessors, (25830), 3448 states have call successors, (3448), 64 states have call predecessors, (3448), 64 states have return successors, (3448), 3388 states have call predecessors, (3448), 3448 states have call successors, (3448) [2024-12-02 15:12:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19329 states to 19329 states and 32726 transitions. [2024-12-02 15:12:21,337 INFO L78 Accepts]: Start accepts. Automaton has 19329 states and 32726 transitions. Word has length 754 [2024-12-02 15:12:21,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:21,338 INFO L471 AbstractCegarLoop]: Abstraction has 19329 states and 32726 transitions. [2024-12-02 15:12:21,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:21,338 INFO L276 IsEmpty]: Start isEmpty. Operand 19329 states and 32726 transitions. [2024-12-02 15:12:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-12-02 15:12:21,355 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:21,355 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:21,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:12:21,356 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:21,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:21,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1969160466, now seen corresponding path program 1 times [2024-12-02 15:12:21,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:21,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996522487] [2024-12-02 15:12:21,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:21,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:21,785 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:21,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:21,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996522487] [2024-12-02 15:12:21,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996522487] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:21,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:21,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:12:21,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412934070] [2024-12-02 15:12:21,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:21,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:12:21,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:21,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:12:21,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:21,788 INFO L87 Difference]: Start difference. First operand 19329 states and 32726 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:22,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:22,759 INFO L93 Difference]: Finished difference Result 51905 states and 87498 transitions. [2024-12-02 15:12:22,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:12:22,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 754 [2024-12-02 15:12:22,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:22,843 INFO L225 Difference]: With dead ends: 51905 [2024-12-02 15:12:22,843 INFO L226 Difference]: Without dead ends: 32579 [2024-12-02 15:12:22,875 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 [2024-12-02 15:12:22,875 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 285 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:22,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1211 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:22,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32579 states. [2024-12-02 15:12:24,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32579 to 32561. [2024-12-02 15:12:24,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32561 states, 25880 states have (on average 1.6045595054095827) internal successors, (41526), 26004 states have internal predecessors, (41526), 6552 states have call successors, (6552), 128 states have call predecessors, (6552), 128 states have return successors, (6552), 6428 states have call predecessors, (6552), 6552 states have call successors, (6552) [2024-12-02 15:12:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32561 states to 32561 states and 54630 transitions. [2024-12-02 15:12:24,599 INFO L78 Accepts]: Start accepts. Automaton has 32561 states and 54630 transitions. Word has length 754 [2024-12-02 15:12:24,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:24,600 INFO L471 AbstractCegarLoop]: Abstraction has 32561 states and 54630 transitions. [2024-12-02 15:12:24,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 32561 states and 54630 transitions. [2024-12-02 15:12:24,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2024-12-02 15:12:24,646 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:24,646 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:24,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:12:24,646 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:24,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:24,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1081144982, now seen corresponding path program 1 times [2024-12-02 15:12:24,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:24,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813759963] [2024-12-02 15:12:24,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:24,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:25,263 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:25,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:25,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813759963] [2024-12-02 15:12:25,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813759963] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:25,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:25,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:12:25,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750695125] [2024-12-02 15:12:25,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:25,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:12:25,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:25,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:12:25,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:12:25,266 INFO L87 Difference]: Start difference. First operand 32561 states and 54630 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:28,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:28,590 INFO L93 Difference]: Finished difference Result 119375 states and 199334 transitions. [2024-12-02 15:12:28,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:12:28,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 755 [2024-12-02 15:12:28,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:28,827 INFO L225 Difference]: With dead ends: 119375 [2024-12-02 15:12:28,828 INFO L226 Difference]: Without dead ends: 86817 [2024-12-02 15:12:28,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:12:28,897 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 1035 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:28,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 2573 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 15:12:28,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86817 states. [2024-12-02 15:12:33,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86817 to 82824. [2024-12-02 15:12:33,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82824 states, 62920 states have (on average 1.56347743165925) internal successors, (98374), 63301 states have internal predecessors, (98374), 19508 states have call successors, (19508), 395 states have call predecessors, (19508), 395 states have return successors, (19508), 19127 states have call predecessors, (19508), 19508 states have call successors, (19508) [2024-12-02 15:12:33,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82824 states to 82824 states and 137390 transitions. [2024-12-02 15:12:33,695 INFO L78 Accepts]: Start accepts. Automaton has 82824 states and 137390 transitions. Word has length 755 [2024-12-02 15:12:33,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:33,696 INFO L471 AbstractCegarLoop]: Abstraction has 82824 states and 137390 transitions. [2024-12-02 15:12:33,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:33,696 INFO L276 IsEmpty]: Start isEmpty. Operand 82824 states and 137390 transitions. [2024-12-02 15:12:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2024-12-02 15:12:33,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:33,757 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:33,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:12:33,757 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:33,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:33,758 INFO L85 PathProgramCache]: Analyzing trace with hash -379545108, now seen corresponding path program 1 times [2024-12-02 15:12:33,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:33,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117102145] [2024-12-02 15:12:33,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:33,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:34,366 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:34,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:34,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117102145] [2024-12-02 15:12:34,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117102145] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:34,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:34,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:12:34,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83140455] [2024-12-02 15:12:34,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:34,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:12:34,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:34,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:12:34,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:34,369 INFO L87 Difference]: Start difference. First operand 82824 states and 137390 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:39,018 INFO L93 Difference]: Finished difference Result 202462 states and 335783 transitions. [2024-12-02 15:12:39,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:12:39,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 755 [2024-12-02 15:12:39,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:39,344 INFO L225 Difference]: With dead ends: 202462 [2024-12-02 15:12:39,344 INFO L226 Difference]: Without dead ends: 119760 [2024-12-02 15:12:39,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:12:39,489 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 395 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:39,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1296 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:39,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119760 states. [2024-12-02 15:12:45,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119760 to 119758. [2024-12-02 15:12:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119758 states, 89938 states have (on average 1.5515910960884165) internal successors, (139547), 90509 states have internal predecessors, (139547), 29228 states have call successors, (29228), 591 states have call predecessors, (29228), 591 states have return successors, (29228), 28657 states have call predecessors, (29228), 29228 states have call successors, (29228) [2024-12-02 15:12:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119758 states to 119758 states and 198003 transitions. [2024-12-02 15:12:45,843 INFO L78 Accepts]: Start accepts. Automaton has 119758 states and 198003 transitions. Word has length 755 [2024-12-02 15:12:45,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:45,844 INFO L471 AbstractCegarLoop]: Abstraction has 119758 states and 198003 transitions. [2024-12-02 15:12:45,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:45,844 INFO L276 IsEmpty]: Start isEmpty. Operand 119758 states and 198003 transitions. [2024-12-02 15:12:45,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2024-12-02 15:12:45,888 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:45,888 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:45,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:12:45,889 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:45,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1092861422, now seen corresponding path program 1 times [2024-12-02 15:12:45,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:45,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465759811] [2024-12-02 15:12:45,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:12:47,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:47,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465759811] [2024-12-02 15:12:47,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465759811] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:47,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:47,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:12:47,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35359366] [2024-12-02 15:12:47,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:47,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:12:47,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:47,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:12:47,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:12:47,117 INFO L87 Difference]: Start difference. First operand 119758 states and 198003 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:12:53,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:53,653 INFO L93 Difference]: Finished difference Result 293342 states and 484931 transitions. [2024-12-02 15:12:53,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:12:53,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 755 [2024-12-02 15:12:53,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:54,376 INFO L225 Difference]: With dead ends: 293342 [2024-12-02 15:12:54,376 INFO L226 Difference]: Without dead ends: 173706 [2024-12-02 15:12:54,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:12:54,602 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 1194 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 4391 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:54,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 4391 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 15:12:54,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173706 states. [2024-12-02 15:13:02,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173706 to 173408. [2024-12-02 15:13:02,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173408 states, 132644 states have (on average 1.5577862549380297) internal successors, (206631), 133503 states have internal predecessors, (206631), 39884 states have call successors, (39884), 879 states have call predecessors, (39884), 879 states have return successors, (39884), 39025 states have call predecessors, (39884), 39884 states have call successors, (39884) [2024-12-02 15:13:03,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173408 states to 173408 states and 286399 transitions. [2024-12-02 15:13:03,108 INFO L78 Accepts]: Start accepts. Automaton has 173408 states and 286399 transitions. Word has length 755 [2024-12-02 15:13:03,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:03,108 INFO L471 AbstractCegarLoop]: Abstraction has 173408 states and 286399 transitions. [2024-12-02 15:13:03,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:13:03,108 INFO L276 IsEmpty]: Start isEmpty. Operand 173408 states and 286399 transitions. [2024-12-02 15:13:03,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2024-12-02 15:13:03,417 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:03,417 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:03,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 15:13:03,417 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:03,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:03,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1824828848, now seen corresponding path program 1 times [2024-12-02 15:13:03,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:13:03,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592017396] [2024-12-02 15:13:03,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:03,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:13:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:13:03,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:13:03,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592017396] [2024-12-02 15:13:03,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592017396] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:03,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:03,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:13:03,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017918934] [2024-12-02 15:13:03,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:03,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:13:03,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:13:03,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:13:03,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:13:03,937 INFO L87 Difference]: Start difference. First operand 173408 states and 286399 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:13:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:22,387 INFO L93 Difference]: Finished difference Result 593842 states and 978068 transitions. [2024-12-02 15:13:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:13:22,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 755 [2024-12-02 15:13:22,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:23,518 INFO L225 Difference]: With dead ends: 593842 [2024-12-02 15:13:23,518 INFO L226 Difference]: Without dead ends: 420556 [2024-12-02 15:13:23,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:13:23,833 INFO L435 NwaCegarLoop]: 874 mSDtfsCounter, 598 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:23,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 2115 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:13:24,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420556 states. [2024-12-02 15:13:44,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420556 to 360528. [2024-12-02 15:13:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360528 states, 279072 states have (on average 1.5604216832932003) internal successors, (435470), 280789 states have internal predecessors, (435470), 79700 states have call successors, (79700), 1755 states have call predecessors, (79700), 1755 states have return successors, (79700), 77983 states have call predecessors, (79700), 79700 states have call successors, (79700) [2024-12-02 15:13:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360528 states to 360528 states and 594870 transitions. [2024-12-02 15:13:46,437 INFO L78 Accepts]: Start accepts. Automaton has 360528 states and 594870 transitions. Word has length 755 [2024-12-02 15:13:46,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:46,438 INFO L471 AbstractCegarLoop]: Abstraction has 360528 states and 594870 transitions. [2024-12-02 15:13:46,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:13:46,438 INFO L276 IsEmpty]: Start isEmpty. Operand 360528 states and 594870 transitions. [2024-12-02 15:13:46,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2024-12-02 15:13:46,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:46,523 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:46,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 15:13:46,523 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:46,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:46,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1451690578, now seen corresponding path program 1 times [2024-12-02 15:13:46,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:13:46,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235139872] [2024-12-02 15:13:46,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:13:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:13:47,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:13:47,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235139872] [2024-12-02 15:13:47,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235139872] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:47,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:47,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:13:47,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996469045] [2024-12-02 15:13:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:47,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:13:47,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:13:47,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:13:47,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:13:47,162 INFO L87 Difference]: Start difference. First operand 360528 states and 594870 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:14:27,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:27,548 INFO L93 Difference]: Finished difference Result 1085308 states and 1782436 transitions. [2024-12-02 15:14:27,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:14:27,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 755 [2024-12-02 15:14:27,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:30,028 INFO L225 Difference]: With dead ends: 1085308 [2024-12-02 15:14:30,028 INFO L226 Difference]: Without dead ends: 724902 [2024-12-02 15:14:30,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:14:30,611 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 709 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:30,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 2124 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:14:30,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724902 states. [2024-12-02 15:15:14,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724902 to 724828. [2024-12-02 15:15:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724828 states, 561722 states have (on average 1.552782337170344) internal successors, (872232), 565167 states have internal predecessors, (872232), 157316 states have call successors, (157316), 5789 states have call predecessors, (157316), 5789 states have return successors, (157316), 153871 states have call predecessors, (157316), 157316 states have call successors, (157316) [2024-12-02 15:15:18,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724828 states to 724828 states and 1186864 transitions. [2024-12-02 15:15:19,208 INFO L78 Accepts]: Start accepts. Automaton has 724828 states and 1186864 transitions. Word has length 755 [2024-12-02 15:15:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:15:19,209 INFO L471 AbstractCegarLoop]: Abstraction has 724828 states and 1186864 transitions. [2024-12-02 15:15:19,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:15:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 724828 states and 1186864 transitions. [2024-12-02 15:15:19,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2024-12-02 15:15:19,389 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:15:19,389 INFO L218 NwaCegarLoop]: trace histogram [118, 118, 118, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:15:19,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:15:19,389 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:15:19,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:15:19,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1424624976, now seen corresponding path program 1 times [2024-12-02 15:15:19,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:15:19,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443389424] [2024-12-02 15:15:19,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:15:19,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:15:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:15:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 27612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2024-12-02 15:15:20,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:15:20,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443389424] [2024-12-02 15:15:20,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443389424] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:15:20,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:15:20,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:15:20,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458576104] [2024-12-02 15:15:20,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:15:20,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:15:20,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:15:20,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:15:20,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:15:20,481 INFO L87 Difference]: Start difference. First operand 724828 states and 1186864 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) [2024-12-02 15:16:56,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:16:56,948 INFO L93 Difference]: Finished difference Result 2018032 states and 3259948 transitions. [2024-12-02 15:16:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:16:56,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (118), 1 states have call predecessors, (118), 1 states have return successors, (118), 1 states have call predecessors, (118), 1 states have call successors, (118) Word has length 755 [2024-12-02 15:16:56,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:17:02,554 INFO L225 Difference]: With dead ends: 2018032 [2024-12-02 15:17:02,554 INFO L226 Difference]: Without dead ends: 1293334 [2024-12-02 15:17:04,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:17:04,175 INFO L435 NwaCegarLoop]: 951 mSDtfsCounter, 1576 mSDsluCounter, 4045 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:17:04,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1576 Valid, 4996 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 15:17:04,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293334 states.