./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4d4716b5bcc1e4ce7ea9f8c28198c0117438c6f376763aaf88a2602c602b3db --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:02:58,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:02:58,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:02:58,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:02:58,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:02:58,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:02:58,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:02:58,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:02:58,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:02:58,306 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:02:58,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:02:58,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:02:58,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:02:58,308 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:02:58,309 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:02:58,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:02:58,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:02:58,309 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:02:58,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:02:58,309 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:02:58,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:02:58,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:02:58,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:02:58,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:02:58,310 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:02:58,310 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:02:58,310 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:02:58,310 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:02:58,310 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:02:58,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:02:58,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:02:58,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:02:58,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:02:58,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:02:58,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:02:58,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:02:58,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:02:58,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:02:58,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:02:58,315 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_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4d4716b5bcc1e4ce7ea9f8c28198c0117438c6f376763aaf88a2602c602b3db [2024-11-24 02:02:58,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:02:58,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:02:58,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:02:58,696 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:02:58,697 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:02:58,698 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-95.i [2024-11-24 02:03:01,876 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/data/cfaaabb9a/0fc468a1dcd549919d2f6a1f0bcb5d62/FLAGc05b0c43a [2024-11-24 02:03:02,360 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:03:02,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-95.i [2024-11-24 02:03:02,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/data/cfaaabb9a/0fc468a1dcd549919d2f6a1f0bcb5d62/FLAGc05b0c43a [2024-11-24 02:03:02,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/data/cfaaabb9a/0fc468a1dcd549919d2f6a1f0bcb5d62 [2024-11-24 02:03:02,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:03:02,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:03:02,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:03:02,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:03:02,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:03:02,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:03:02" (1/1) ... [2024-11-24 02:03:02,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a50bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:02, skipping insertion in model container [2024-11-24 02:03:02,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:03:02" (1/1) ... [2024-11-24 02:03:02,481 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:03:02,655 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_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-95.i[916,929] [2024-11-24 02:03:02,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:03:02,865 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:03:02,877 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_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-95.i[916,929] [2024-11-24 02:03:02,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:03:03,002 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:03:03,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03 WrapperNode [2024-11-24 02:03:03,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:03:03,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:03:03,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:03:03,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:03:03,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,122 INFO L138 Inliner]: procedures = 26, calls = 99, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 771 [2024-11-24 02:03:03,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:03:03,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:03:03,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:03:03,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:03:03,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,157 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,229 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 02:03:03,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,266 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:03:03,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:03:03,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:03:03,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:03:03,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (1/1) ... [2024-11-24 02:03:03,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:03:03,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:03:03,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:03:03,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:03:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:03:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:03:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:03:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:03:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:03:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:03:03,609 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:03:03,611 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:03:05,555 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-24 02:03:05,555 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:03:05,584 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:03:05,588 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:03:05,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:03:05 BoogieIcfgContainer [2024-11-24 02:03:05,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:03:05,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:03:05,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:03:05,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:03:05,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:03:02" (1/3) ... [2024-11-24 02:03:05,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c530ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:03:05, skipping insertion in model container [2024-11-24 02:03:05,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:03" (2/3) ... [2024-11-24 02:03:05,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c530ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:03:05, skipping insertion in model container [2024-11-24 02:03:05,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:03:05" (3/3) ... [2024-11-24 02:03:05,603 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-95.i [2024-11-24 02:03:05,620 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:03:05,623 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-95.i that has 2 procedures, 316 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:03:05,718 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:03:05,733 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;@373eeb48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:03:05,733 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:03:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 316 states, 227 states have (on average 1.6387665198237886) internal successors, (372), 228 states have internal predecessors, (372), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 02:03:05,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-24 02:03:05,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:05,782 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:05,783 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:05,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:05,789 INFO L85 PathProgramCache]: Analyzing trace with hash -365387319, now seen corresponding path program 1 times [2024-11-24 02:03:05,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:05,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98078230] [2024-11-24 02:03:05,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:05,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:06,751 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 14450 trivial. 0 not checked. [2024-11-24 02:03:06,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98078230] [2024-11-24 02:03:06,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98078230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:03:06,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693733988] [2024-11-24 02:03:06,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:06,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:03:06,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:03:06,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:03:06,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:03:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:07,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:03:07,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:03:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 14450 trivial. 0 not checked. [2024-11-24 02:03:07,486 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:03:07,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693733988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:07,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:03:07,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 02:03:07,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660638601] [2024-11-24 02:03:07,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:07,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:03:07,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:07,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:03:07,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:03:07,523 INFO L87 Difference]: Start difference. First operand has 316 states, 227 states have (on average 1.6387665198237886) internal successors, (372), 228 states have internal predecessors, (372), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) [2024-11-24 02:03:07,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:07,590 INFO L93 Difference]: Finished difference Result 624 states and 1166 transitions. [2024-11-24 02:03:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:03:07,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) Word has length 572 [2024-11-24 02:03:07,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:07,603 INFO L225 Difference]: With dead ends: 624 [2024-11-24 02:03:07,603 INFO L226 Difference]: Without dead ends: 311 [2024-11-24 02:03:07,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:03:07,618 INFO L435 NwaCegarLoop]: 530 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, 530 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:07,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:03:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-24 02:03:07,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-24 02:03:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 223 states have (on average 1.6053811659192825) internal successors, (358), 223 states have internal predecessors, (358), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 02:03:07,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 530 transitions. [2024-11-24 02:03:07,726 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 530 transitions. Word has length 572 [2024-11-24 02:03:07,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:07,728 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 530 transitions. [2024-11-24 02:03:07,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) [2024-11-24 02:03:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 530 transitions. [2024-11-24 02:03:07,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-24 02:03:07,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:07,750 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:07,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:03:07,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7ce91-765a-4bf6-9849-7cabb84ffca9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 02:03:07,955 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:07,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:07,957 INFO L85 PathProgramCache]: Analyzing trace with hash 519955739, now seen corresponding path program 1 times [2024-11-24 02:03:07,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:07,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142243363] [2024-11-24 02:03:07,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:07,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-24 02:03:08,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:08,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142243363] [2024-11-24 02:03:08,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142243363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:08,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:08,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:03:08,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099329808] [2024-11-24 02:03:08,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:08,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:03:08,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:08,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:03:08,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:03:08,928 INFO L87 Difference]: Start difference. First operand 311 states and 530 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:09,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:09,391 INFO L93 Difference]: Finished difference Result 1169 states and 2014 transitions. [2024-11-24 02:03:09,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:03:09,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 572 [2024-11-24 02:03:09,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:09,407 INFO L225 Difference]: With dead ends: 1169 [2024-11-24 02:03:09,408 INFO L226 Difference]: Without dead ends: 861 [2024-11-24 02:03:09,411 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 [2024-11-24 02:03:09,412 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 1013 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:09,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 2088 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:03:09,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-11-24 02:03:09,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 852. [2024-11-24 02:03:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 702 states have (on average 1.6723646723646723) internal successors, (1174), 705 states have internal predecessors, (1174), 145 states have call successors, (145), 4 states have call predecessors, (145), 4 states have return successors, (145), 142 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-24 02:03:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1464 transitions. [2024-11-24 02:03:09,587 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1464 transitions. Word has length 572 [2024-11-24 02:03:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:09,589 INFO L471 AbstractCegarLoop]: Abstraction has 852 states and 1464 transitions. [2024-11-24 02:03:09,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:09,589 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1464 transitions. [2024-11-24 02:03:09,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-24 02:03:09,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:09,607 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:09,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:03:09,608 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:09,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:09,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1672113994, now seen corresponding path program 1 times [2024-11-24 02:03:09,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:09,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355370728] [2024-11-24 02:03:09,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:09,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-24 02:03:10,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:10,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355370728] [2024-11-24 02:03:10,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355370728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:10,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:10,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:03:10,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181973913] [2024-11-24 02:03:10,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:10,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:03:10,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:10,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:03:10,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:10,322 INFO L87 Difference]: Start difference. First operand 852 states and 1464 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:10,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:10,445 INFO L93 Difference]: Finished difference Result 2212 states and 3786 transitions. [2024-11-24 02:03:10,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:03:10,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 573 [2024-11-24 02:03:10,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:10,463 INFO L225 Difference]: With dead ends: 2212 [2024-11-24 02:03:10,463 INFO L226 Difference]: Without dead ends: 1363 [2024-11-24 02:03:10,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:10,466 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 296 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:10,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1049 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:03:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2024-11-24 02:03:10,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1360. [2024-11-24 02:03:10,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1085 states have (on average 1.6470046082949308) internal successors, (1787), 1092 states have internal predecessors, (1787), 266 states have call successors, (266), 8 states have call predecessors, (266), 8 states have return successors, (266), 259 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-24 02:03:10,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 2319 transitions. [2024-11-24 02:03:10,639 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 2319 transitions. Word has length 573 [2024-11-24 02:03:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:10,640 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 2319 transitions. [2024-11-24 02:03:10,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 2319 transitions. [2024-11-24 02:03:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-24 02:03:10,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:10,662 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:10,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:03:10,662 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:10,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:10,663 INFO L85 PathProgramCache]: Analyzing trace with hash 774720716, now seen corresponding path program 1 times [2024-11-24 02:03:10,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:10,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244914806] [2024-11-24 02:03:10,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:10,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-24 02:03:11,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:11,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244914806] [2024-11-24 02:03:11,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244914806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:11,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:11,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:03:11,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675170851] [2024-11-24 02:03:11,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:11,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:03:11,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:11,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:03:11,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:11,191 INFO L87 Difference]: Start difference. First operand 1360 states and 2319 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:11,397 INFO L93 Difference]: Finished difference Result 3869 states and 6592 transitions. [2024-11-24 02:03:11,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:03:11,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 573 [2024-11-24 02:03:11,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:11,420 INFO L225 Difference]: With dead ends: 3869 [2024-11-24 02:03:11,420 INFO L226 Difference]: Without dead ends: 2512 [2024-11-24 02:03:11,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:11,427 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 304 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:11,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1198 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:03:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2024-11-24 02:03:11,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2508. [2024-11-24 02:03:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2508 states, 2007 states have (on average 1.6347782760338814) internal successors, (3281), 2022 states have internal predecessors, (3281), 484 states have call successors, (484), 16 states have call predecessors, (484), 16 states have return successors, (484), 469 states have call predecessors, (484), 484 states have call successors, (484) [2024-11-24 02:03:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 4249 transitions. [2024-11-24 02:03:11,717 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 4249 transitions. Word has length 573 [2024-11-24 02:03:11,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:11,718 INFO L471 AbstractCegarLoop]: Abstraction has 2508 states and 4249 transitions. [2024-11-24 02:03:11,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:11,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 4249 transitions. [2024-11-24 02:03:11,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-24 02:03:11,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:11,736 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:11,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:03:11,736 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:11,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:11,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1030717618, now seen corresponding path program 1 times [2024-11-24 02:03:11,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:11,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778925668] [2024-11-24 02:03:11,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:11,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-24 02:03:12,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:12,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778925668] [2024-11-24 02:03:12,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778925668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:12,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:12,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:03:12,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547647319] [2024-11-24 02:03:12,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:12,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:03:12,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:12,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:03:12,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:12,149 INFO L87 Difference]: Start difference. First operand 2508 states and 4249 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:12,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:12,529 INFO L93 Difference]: Finished difference Result 7518 states and 12741 transitions. [2024-11-24 02:03:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:03:12,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 573 [2024-11-24 02:03:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:12,576 INFO L225 Difference]: With dead ends: 7518 [2024-11-24 02:03:12,576 INFO L226 Difference]: Without dead ends: 5013 [2024-11-24 02:03:12,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:12,588 INFO L435 NwaCegarLoop]: 988 mSDtfsCounter, 513 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:12,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1511 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:03:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2024-11-24 02:03:13,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 4995. [2024-11-24 02:03:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4995 states, 3994 states have (on average 1.629944917376064) internal successors, (6510), 4024 states have internal predecessors, (6510), 968 states have call successors, (968), 32 states have call predecessors, (968), 32 states have return successors, (968), 938 states have call predecessors, (968), 968 states have call successors, (968) [2024-11-24 02:03:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 8446 transitions. [2024-11-24 02:03:13,111 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 8446 transitions. Word has length 573 [2024-11-24 02:03:13,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:13,114 INFO L471 AbstractCegarLoop]: Abstraction has 4995 states and 8446 transitions. [2024-11-24 02:03:13,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:13,114 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 8446 transitions. [2024-11-24 02:03:13,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-24 02:03:13,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:13,124 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:13,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:03:13,125 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:13,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:13,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1575305936, now seen corresponding path program 1 times [2024-11-24 02:03:13,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:13,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265869967] [2024-11-24 02:03:13,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:13,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:13,558 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-24 02:03:13,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:13,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265869967] [2024-11-24 02:03:13,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265869967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:13,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:13,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:03:13,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717889921] [2024-11-24 02:03:13,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:13,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:03:13,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:13,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:03:13,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:13,564 INFO L87 Difference]: Start difference. First operand 4995 states and 8446 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:14,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:14,150 INFO L93 Difference]: Finished difference Result 14787 states and 24996 transitions. [2024-11-24 02:03:14,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:03:14,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 573 [2024-11-24 02:03:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:14,212 INFO L225 Difference]: With dead ends: 14787 [2024-11-24 02:03:14,212 INFO L226 Difference]: Without dead ends: 9795 [2024-11-24 02:03:14,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:14,231 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 514 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:14,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1050 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:03:14,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9795 states. [2024-11-24 02:03:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9795 to 5059. [2024-11-24 02:03:14,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5059 states, 4058 states have (on average 1.6239526860522424) internal successors, (6590), 4088 states have internal predecessors, (6590), 968 states have call successors, (968), 32 states have call predecessors, (968), 32 states have return successors, (968), 938 states have call predecessors, (968), 968 states have call successors, (968) [2024-11-24 02:03:14,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5059 states to 5059 states and 8526 transitions. [2024-11-24 02:03:14,988 INFO L78 Accepts]: Start accepts. Automaton has 5059 states and 8526 transitions. Word has length 573 [2024-11-24 02:03:14,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:14,989 INFO L471 AbstractCegarLoop]: Abstraction has 5059 states and 8526 transitions. [2024-11-24 02:03:14,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:14,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5059 states and 8526 transitions. [2024-11-24 02:03:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-24 02:03:15,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:15,045 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:15,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:03:15,046 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:15,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:15,046 INFO L85 PathProgramCache]: Analyzing trace with hash -418838770, now seen corresponding path program 1 times [2024-11-24 02:03:15,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:15,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277721707] [2024-11-24 02:03:15,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:15,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-24 02:03:15,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:15,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277721707] [2024-11-24 02:03:15,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277721707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:15,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:15,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:03:15,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071614841] [2024-11-24 02:03:15,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:15,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:03:15,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:15,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:03:15,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:03:15,726 INFO L87 Difference]: Start difference. First operand 5059 states and 8526 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2024-11-24 02:03:16,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:16,870 INFO L93 Difference]: Finished difference Result 15171 states and 25572 transitions. [2024-11-24 02:03:16,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:03:16,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) Word has length 573 [2024-11-24 02:03:16,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:16,969 INFO L225 Difference]: With dead ends: 15171 [2024-11-24 02:03:16,969 INFO L226 Difference]: Without dead ends: 10115 [2024-11-24 02:03:16,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:03:16,989 INFO L435 NwaCegarLoop]: 530 mSDtfsCounter, 752 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:16,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1023 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:03:17,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10115 states. [2024-11-24 02:03:17,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10115 to 10113. [2024-11-24 02:03:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10113 states, 8112 states have (on average 1.6222879684418146) internal successors, (13160), 8172 states have internal predecessors, (13160), 1936 states have call successors, (1936), 64 states have call predecessors, (1936), 64 states have return successors, (1936), 1876 states have call predecessors, (1936), 1936 states have call successors, (1936) [2024-11-24 02:03:18,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10113 states to 10113 states and 17032 transitions. [2024-11-24 02:03:18,046 INFO L78 Accepts]: Start accepts. Automaton has 10113 states and 17032 transitions. Word has length 573 [2024-11-24 02:03:18,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:18,048 INFO L471 AbstractCegarLoop]: Abstraction has 10113 states and 17032 transitions. [2024-11-24 02:03:18,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2024-11-24 02:03:18,050 INFO L276 IsEmpty]: Start isEmpty. Operand 10113 states and 17032 transitions. [2024-11-24 02:03:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-24 02:03:18,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:18,063 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:18,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:03:18,063 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:18,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash 14890316, now seen corresponding path program 1 times [2024-11-24 02:03:18,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:18,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402175051] [2024-11-24 02:03:18,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:18,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:18,645 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-24 02:03:18,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:18,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402175051] [2024-11-24 02:03:18,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402175051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:18,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:18,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:03:18,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004387714] [2024-11-24 02:03:18,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:18,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:03:18,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:18,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:03:18,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:18,648 INFO L87 Difference]: Start difference. First operand 10113 states and 17032 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:19,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:19,942 INFO L93 Difference]: Finished difference Result 30201 states and 50882 transitions. [2024-11-24 02:03:19,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:03:19,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 573 [2024-11-24 02:03:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:20,032 INFO L225 Difference]: With dead ends: 30201 [2024-11-24 02:03:20,032 INFO L226 Difference]: Without dead ends: 20091 [2024-11-24 02:03:20,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:03:20,062 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 457 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:20,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1260 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:03:20,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20091 states. [2024-11-24 02:03:21,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20091 to 20085. [2024-11-24 02:03:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20085 states, 16084 states have (on average 1.6155185277294206) internal successors, (25984), 16204 states have internal predecessors, (25984), 3872 states have call successors, (3872), 128 states have call predecessors, (3872), 128 states have return successors, (3872), 3752 states have call predecessors, (3872), 3872 states have call successors, (3872) [2024-11-24 02:03:21,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20085 states to 20085 states and 33728 transitions. [2024-11-24 02:03:21,998 INFO L78 Accepts]: Start accepts. Automaton has 20085 states and 33728 transitions. Word has length 573 [2024-11-24 02:03:21,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:22,000 INFO L471 AbstractCegarLoop]: Abstraction has 20085 states and 33728 transitions. [2024-11-24 02:03:22,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:22,000 INFO L276 IsEmpty]: Start isEmpty. Operand 20085 states and 33728 transitions. [2024-11-24 02:03:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-24 02:03:22,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:22,022 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:22,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:03:22,023 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:22,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:22,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1356916982, now seen corresponding path program 1 times [2024-11-24 02:03:22,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:22,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638923475] [2024-11-24 02:03:22,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:22,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-24 02:03:23,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:23,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638923475] [2024-11-24 02:03:23,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638923475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:23,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:23,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:03:23,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647348136] [2024-11-24 02:03:23,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:23,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:03:23,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:23,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:03:23,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:03:23,048 INFO L87 Difference]: Start difference. First operand 20085 states and 33728 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:27,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:27,023 INFO L93 Difference]: Finished difference Result 79979 states and 134359 transitions. [2024-11-24 02:03:27,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:03:27,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 573 [2024-11-24 02:03:27,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:27,345 INFO L225 Difference]: With dead ends: 79979 [2024-11-24 02:03:27,345 INFO L226 Difference]: Without dead ends: 59897 [2024-11-24 02:03:27,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:03:27,425 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 1014 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:27,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 1545 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 02:03:27,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59897 states. [2024-11-24 02:03:31,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59897 to 22933. [2024-11-24 02:03:31,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22933 states, 18932 states have (on average 1.6395520811324742) internal successors, (31040), 19052 states have internal predecessors, (31040), 3872 states have call successors, (3872), 128 states have call predecessors, (3872), 128 states have return successors, (3872), 3752 states have call predecessors, (3872), 3872 states have call successors, (3872) [2024-11-24 02:03:31,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22933 states to 22933 states and 38784 transitions. [2024-11-24 02:03:31,674 INFO L78 Accepts]: Start accepts. Automaton has 22933 states and 38784 transitions. Word has length 573 [2024-11-24 02:03:31,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:31,676 INFO L471 AbstractCegarLoop]: Abstraction has 22933 states and 38784 transitions. [2024-11-24 02:03:31,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 22933 states and 38784 transitions. [2024-11-24 02:03:31,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-24 02:03:31,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:31,695 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:31,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 02:03:31,696 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:31,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:31,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1251870476, now seen corresponding path program 1 times [2024-11-24 02:03:31,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:31,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21653914] [2024-11-24 02:03:31,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:31,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:35,845 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-24 02:03:35,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:35,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21653914] [2024-11-24 02:03:35,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21653914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:35,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:35,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:03:35,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287025489] [2024-11-24 02:03:35,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:35,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:03:35,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:35,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:03:35,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:03:35,848 INFO L87 Difference]: Start difference. First operand 22933 states and 38784 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-24 02:03:55,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:55,256 INFO L93 Difference]: Finished difference Result 211851 states and 353907 transitions. [2024-11-24 02:03:55,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:03:55,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 573 [2024-11-24 02:03:55,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:56,357 INFO L225 Difference]: With dead ends: 211851 [2024-11-24 02:03:56,357 INFO L226 Difference]: Without dead ends: 188921 [2024-11-24 02:03:56,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:03:56,462 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 3612 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 653 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3612 SdHoareTripleChecker+Valid, 3326 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 653 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:56,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3612 Valid, 3326 Invalid, 2650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [653 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-24 02:03:56,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188921 states.