./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-68.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_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/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_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/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_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/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 6356f25af9bb924bb9550dc7ee13ccad0d46305c0140f2958a98a1290334276d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:36:22,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:36:23,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:36:23,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:36:23,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:36:23,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:36:23,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:36:23,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:36:23,119 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:36:23,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:36:23,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:36:23,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:36:23,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:36:23,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:36:23,122 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:36:23,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:36:23,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:36:23,123 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:36:23,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:36:23,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:36:23,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:36:23,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:36:23,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:36:23,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:36:23,124 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:36:23,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:36:23,125 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:36:23,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:36:23,125 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:36:23,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:36:23,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:36:23,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:36:23,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:36:23,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:36:23,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:36:23,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:36:23,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:36:23,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:36:23,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:36:23,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:36:23,128 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:36:23,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:36:23,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:36:23,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:36:23,128 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:36:23,128 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:36:23,128 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:36:23,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:36:23,129 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_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/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 -> 6356f25af9bb924bb9550dc7ee13ccad0d46305c0140f2958a98a1290334276d [2024-11-24 00:36:23,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:36:23,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:36:23,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:36:23,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:36:23,546 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:36:23,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-68.i [2024-11-24 00:36:26,884 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/data/b3573f023/d981d0cb2c5948bba7f8e7e0a32ddc2c/FLAGf4837fe3f [2024-11-24 00:36:27,304 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:36:27,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-68.i [2024-11-24 00:36:27,331 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/data/b3573f023/d981d0cb2c5948bba7f8e7e0a32ddc2c/FLAGf4837fe3f [2024-11-24 00:36:27,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/data/b3573f023/d981d0cb2c5948bba7f8e7e0a32ddc2c [2024-11-24 00:36:27,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:36:27,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:36:27,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:36:27,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:36:27,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:36:27,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:36:27" (1/1) ... [2024-11-24 00:36:27,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae75765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:27, skipping insertion in model container [2024-11-24 00:36:27,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:36:27" (1/1) ... [2024-11-24 00:36:27,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:36:27,655 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_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-68.i[916,929] [2024-11-24 00:36:27,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:36:28,009 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:36:28,029 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_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-68.i[916,929] [2024-11-24 00:36:28,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:36:28,221 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:36:28,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28 WrapperNode [2024-11-24 00:36:28,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:36:28,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:36:28,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:36:28,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:36:28,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,382 INFO L138 Inliner]: procedures = 26, calls = 112, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 818 [2024-11-24 00:36:28,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:36:28,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:36:28,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:36:28,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:36:28,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,408 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,485 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 00:36:28,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,541 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:36:28,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:36:28,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:36:28,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:36:28,638 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (1/1) ... [2024-11-24 00:36:28,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:36:28,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:36:28,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:36:28,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:36:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:36:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:36:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:36:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:36:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:36:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:36:28,925 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:36:28,929 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:36:31,118 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-11-24 00:36:31,118 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:36:31,152 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:36:31,152 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:36:31,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:36:31 BoogieIcfgContainer [2024-11-24 00:36:31,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:36:31,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:36:31,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:36:31,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:36:31,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:36:27" (1/3) ... [2024-11-24 00:36:31,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b651cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:36:31, skipping insertion in model container [2024-11-24 00:36:31,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:36:28" (2/3) ... [2024-11-24 00:36:31,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b651cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:36:31, skipping insertion in model container [2024-11-24 00:36:31,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:36:31" (3/3) ... [2024-11-24 00:36:31,175 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-68.i [2024-11-24 00:36:31,198 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:36:31,203 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-68.i that has 2 procedures, 334 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:36:31,322 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:36:31,345 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;@1fab395c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:36:31,345 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:36:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 334 states, 232 states have (on average 1.5905172413793103) internal successors, (369), 233 states have internal predecessors, (369), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:36:31,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-24 00:36:31,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:31,423 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:31,424 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:31,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:31,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1002179095, now seen corresponding path program 1 times [2024-11-24 00:36:31,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665984400] [2024-11-24 00:36:31,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:31,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 19208 trivial. 0 not checked. [2024-11-24 00:36:32,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:32,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665984400] [2024-11-24 00:36:32,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665984400] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:36:32,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671992317] [2024-11-24 00:36:32,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:32,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:36:32,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:36:32,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:36:32,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:36:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:33,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 1502 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:36:33,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:36:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 19208 trivial. 0 not checked. [2024-11-24 00:36:33,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:36:33,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671992317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:33,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:36:33,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:36:33,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809635578] [2024-11-24 00:36:33,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:33,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:36:33,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:33,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:36:33,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:36:33,570 INFO L87 Difference]: Start difference. First operand has 334 states, 232 states have (on average 1.5905172413793103) internal successors, (369), 233 states have internal predecessors, (369), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) [2024-11-24 00:36:33,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:33,660 INFO L93 Difference]: Finished difference Result 659 states and 1225 transitions. [2024-11-24 00:36:33,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:36:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) Word has length 642 [2024-11-24 00:36:33,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:33,675 INFO L225 Difference]: With dead ends: 659 [2024-11-24 00:36:33,675 INFO L226 Difference]: Without dead ends: 328 [2024-11-24 00:36:33,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 643 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 00:36:33,685 INFO L435 NwaCegarLoop]: 554 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, 554 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 00:36:33,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:36:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-24 00:36:33,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2024-11-24 00:36:33,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 227 states have (on average 1.5682819383259912) internal successors, (356), 227 states have internal predecessors, (356), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:36:33,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 554 transitions. [2024-11-24 00:36:33,816 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 554 transitions. Word has length 642 [2024-11-24 00:36:33,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:36:33,819 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 554 transitions. [2024-11-24 00:36:33,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) [2024-11-24 00:36:33,821 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 554 transitions. [2024-11-24 00:36:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-24 00:36:33,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:33,853 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:33,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:36:34,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c16867-9d1d-41a6-ad0f-0e96433f7f55/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:36:34,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:34,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:34,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1482391667, now seen corresponding path program 1 times [2024-11-24 00:36:34,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:34,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919026719] [2024-11-24 00:36:34,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:34,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:36:35,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:35,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919026719] [2024-11-24 00:36:35,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919026719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:35,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:36:35,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:36:35,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213239265] [2024-11-24 00:36:35,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:35,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:36:35,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:35,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:36:35,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:36:35,313 INFO L87 Difference]: Start difference. First operand 328 states and 554 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:35,483 INFO L93 Difference]: Finished difference Result 859 states and 1451 transitions. [2024-11-24 00:36:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:36:35,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-24 00:36:35,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:35,500 INFO L225 Difference]: With dead ends: 859 [2024-11-24 00:36:35,501 INFO L226 Difference]: Without dead ends: 534 [2024-11-24 00:36:35,503 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 00:36:35,507 INFO L435 NwaCegarLoop]: 664 mSDtfsCounter, 331 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:36:35,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1195 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:36:35,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-24 00:36:35,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 531. [2024-11-24 00:36:35,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 387 states have (on average 1.5891472868217054) internal successors, (615), 388 states have internal predecessors, (615), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 140 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-24 00:36:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 897 transitions. [2024-11-24 00:36:35,697 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 897 transitions. Word has length 642 [2024-11-24 00:36:35,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:36:35,703 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 897 transitions. [2024-11-24 00:36:35,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:35,703 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 897 transitions. [2024-11-24 00:36:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-24 00:36:35,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:35,718 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:35,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:36:35,719 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:35,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:35,721 INFO L85 PathProgramCache]: Analyzing trace with hash 901533071, now seen corresponding path program 1 times [2024-11-24 00:36:35,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:35,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93610295] [2024-11-24 00:36:35,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:35,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:36,485 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:36:36,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:36,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93610295] [2024-11-24 00:36:36,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93610295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:36,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:36:36,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:36:36,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119675756] [2024-11-24 00:36:36,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:36,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:36:36,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:36,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:36:36,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:36:36,496 INFO L87 Difference]: Start difference. First operand 531 states and 897 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:36,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:36,683 INFO L93 Difference]: Finished difference Result 1380 states and 2318 transitions. [2024-11-24 00:36:36,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:36:36,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-24 00:36:36,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:36,704 INFO L225 Difference]: With dead ends: 1380 [2024-11-24 00:36:36,705 INFO L226 Difference]: Without dead ends: 852 [2024-11-24 00:36:36,712 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 00:36:36,713 INFO L435 NwaCegarLoop]: 551 mSDtfsCounter, 237 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:36:36,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1090 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:36:36,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-11-24 00:36:36,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 848. [2024-11-24 00:36:36,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 622 states have (on average 1.5707395498392283) internal successors, (977), 625 states have internal predecessors, (977), 221 states have call successors, (221), 4 states have call predecessors, (221), 4 states have return successors, (221), 218 states have call predecessors, (221), 221 states have call successors, (221) [2024-11-24 00:36:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1419 transitions. [2024-11-24 00:36:36,884 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1419 transitions. Word has length 642 [2024-11-24 00:36:36,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:36:36,891 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1419 transitions. [2024-11-24 00:36:36,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:36,891 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1419 transitions. [2024-11-24 00:36:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-24 00:36:36,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:36,906 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:36,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:36:36,907 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:36,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1470206191, now seen corresponding path program 1 times [2024-11-24 00:36:36,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:36,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064385888] [2024-11-24 00:36:36,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:36,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:36:37,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:37,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064385888] [2024-11-24 00:36:37,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064385888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:37,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:36:37,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:36:37,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254367014] [2024-11-24 00:36:37,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:37,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:36:37,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:37,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:36:37,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:36:37,589 INFO L87 Difference]: Start difference. First operand 848 states and 1419 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:37,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:37,789 INFO L93 Difference]: Finished difference Result 2484 states and 4155 transitions. [2024-11-24 00:36:37,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:36:37,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-24 00:36:37,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:37,809 INFO L225 Difference]: With dead ends: 2484 [2024-11-24 00:36:37,809 INFO L226 Difference]: Without dead ends: 1639 [2024-11-24 00:36:37,813 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 00:36:37,816 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 461 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:36:37,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1425 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:36:37,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2024-11-24 00:36:38,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1112. [2024-11-24 00:36:38,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 886 states have (on average 1.6286681715575622) internal successors, (1443), 889 states have internal predecessors, (1443), 221 states have call successors, (221), 4 states have call predecessors, (221), 4 states have return successors, (221), 218 states have call predecessors, (221), 221 states have call successors, (221) [2024-11-24 00:36:38,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1885 transitions. [2024-11-24 00:36:38,067 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1885 transitions. Word has length 642 [2024-11-24 00:36:38,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:36:38,069 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1885 transitions. [2024-11-24 00:36:38,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1885 transitions. [2024-11-24 00:36:38,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-24 00:36:38,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:38,084 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:38,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:36:38,084 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:38,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:38,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1251351473, now seen corresponding path program 1 times [2024-11-24 00:36:38,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:38,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521788046] [2024-11-24 00:36:38,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:38,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:36:38,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:38,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521788046] [2024-11-24 00:36:38,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521788046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:38,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:36:38,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:36:38,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846865472] [2024-11-24 00:36:38,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:38,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:36:38,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:38,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:36:38,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:36:38,958 INFO L87 Difference]: Start difference. First operand 1112 states and 1885 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:39,923 INFO L93 Difference]: Finished difference Result 3330 states and 5649 transitions. [2024-11-24 00:36:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:36:39,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-24 00:36:39,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:39,949 INFO L225 Difference]: With dead ends: 3330 [2024-11-24 00:36:39,949 INFO L226 Difference]: Without dead ends: 2221 [2024-11-24 00:36:39,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:36:39,956 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 546 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:36:39,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1782 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:36:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2024-11-24 00:36:40,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2219. [2024-11-24 00:36:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1768 states have (on average 1.6255656108597285) internal successors, (2874), 1774 states have internal predecessors, (2874), 442 states have call successors, (442), 8 states have call predecessors, (442), 8 states have return successors, (442), 436 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-24 00:36:40,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3758 transitions. [2024-11-24 00:36:40,341 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3758 transitions. Word has length 642 [2024-11-24 00:36:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:36:40,343 INFO L471 AbstractCegarLoop]: Abstraction has 2219 states and 3758 transitions. [2024-11-24 00:36:40,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:40,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3758 transitions. [2024-11-24 00:36:40,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-24 00:36:40,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:40,355 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:40,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:36:40,356 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:40,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:40,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1910882995, now seen corresponding path program 1 times [2024-11-24 00:36:40,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:40,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150404712] [2024-11-24 00:36:40,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:40,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:41,489 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:36:41,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:41,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150404712] [2024-11-24 00:36:41,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150404712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:41,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:36:41,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:36:41,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78251171] [2024-11-24 00:36:41,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:41,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:36:41,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:41,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:36:41,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:36:41,493 INFO L87 Difference]: Start difference. First operand 2219 states and 3758 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:42,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:42,273 INFO L93 Difference]: Finished difference Result 4435 states and 7513 transitions. [2024-11-24 00:36:42,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:36:42,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-24 00:36:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:42,294 INFO L225 Difference]: With dead ends: 4435 [2024-11-24 00:36:42,295 INFO L226 Difference]: Without dead ends: 2219 [2024-11-24 00:36:42,303 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 00:36:42,304 INFO L435 NwaCegarLoop]: 543 mSDtfsCounter, 546 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:36:42,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 884 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:36:42,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2024-11-24 00:36:42,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2024-11-24 00:36:42,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1768 states have (on average 1.6210407239819005) internal successors, (2866), 1774 states have internal predecessors, (2866), 442 states have call successors, (442), 8 states have call predecessors, (442), 8 states have return successors, (442), 436 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-24 00:36:42,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3750 transitions. [2024-11-24 00:36:42,603 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3750 transitions. Word has length 642 [2024-11-24 00:36:42,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:36:42,606 INFO L471 AbstractCegarLoop]: Abstraction has 2219 states and 3750 transitions. [2024-11-24 00:36:42,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:42,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3750 transitions. [2024-11-24 00:36:42,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-24 00:36:42,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:42,617 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:42,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:36:42,617 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:42,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:42,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1273670384, now seen corresponding path program 1 times [2024-11-24 00:36:42,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:42,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405704190] [2024-11-24 00:36:42,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:42,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:36:43,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:43,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405704190] [2024-11-24 00:36:43,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405704190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:43,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:36:43,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:36:43,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620718474] [2024-11-24 00:36:43,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:43,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:36:43,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:43,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:36:43,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:36:43,719 INFO L87 Difference]: Start difference. First operand 2219 states and 3750 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:44,151 INFO L93 Difference]: Finished difference Result 6651 states and 11244 transitions. [2024-11-24 00:36:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:36:44,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 643 [2024-11-24 00:36:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:44,191 INFO L225 Difference]: With dead ends: 6651 [2024-11-24 00:36:44,191 INFO L226 Difference]: Without dead ends: 4435 [2024-11-24 00:36:44,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:36:44,202 INFO L435 NwaCegarLoop]: 692 mSDtfsCounter, 359 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:36:44,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1233 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:36:44,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2024-11-24 00:36:44,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4417. [2024-11-24 00:36:44,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 3516 states have (on average 1.6154721274175199) internal successors, (5680), 3528 states have internal predecessors, (5680), 884 states have call successors, (884), 16 states have call predecessors, (884), 16 states have return successors, (884), 872 states have call predecessors, (884), 884 states have call successors, (884) [2024-11-24 00:36:44,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 7448 transitions. [2024-11-24 00:36:44,933 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 7448 transitions. Word has length 643 [2024-11-24 00:36:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:36:44,936 INFO L471 AbstractCegarLoop]: Abstraction has 4417 states and 7448 transitions. [2024-11-24 00:36:44,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:44,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 7448 transitions. [2024-11-24 00:36:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-24 00:36:44,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:44,956 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:44,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:36:44,957 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:44,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:44,958 INFO L85 PathProgramCache]: Analyzing trace with hash 254209221, now seen corresponding path program 1 times [2024-11-24 00:36:44,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:44,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729598964] [2024-11-24 00:36:44,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:44,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:46,363 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:36:46,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:46,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729598964] [2024-11-24 00:36:46,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729598964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:46,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:36:46,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:36:46,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575232160] [2024-11-24 00:36:46,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:46,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:36:46,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:46,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:36:46,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:36:46,367 INFO L87 Difference]: Start difference. First operand 4417 states and 7448 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:47,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:47,027 INFO L93 Difference]: Finished difference Result 13245 states and 22338 transitions. [2024-11-24 00:36:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:36:47,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-24 00:36:47,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:47,097 INFO L225 Difference]: With dead ends: 13245 [2024-11-24 00:36:47,097 INFO L226 Difference]: Without dead ends: 8831 [2024-11-24 00:36:47,114 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 00:36:47,115 INFO L435 NwaCegarLoop]: 553 mSDtfsCounter, 333 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:36:47,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1099 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:36:47,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2024-11-24 00:36:48,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 8829. [2024-11-24 00:36:48,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 7028 states have (on average 1.6112692088787706) internal successors, (11324), 7052 states have internal predecessors, (11324), 1768 states have call successors, (1768), 32 states have call predecessors, (1768), 32 states have return successors, (1768), 1744 states have call predecessors, (1768), 1768 states have call successors, (1768) [2024-11-24 00:36:48,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 14860 transitions. [2024-11-24 00:36:48,504 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 14860 transitions. Word has length 644 [2024-11-24 00:36:48,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:36:48,507 INFO L471 AbstractCegarLoop]: Abstraction has 8829 states and 14860 transitions. [2024-11-24 00:36:48,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 14860 transitions. [2024-11-24 00:36:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-24 00:36:48,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:48,534 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:48,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:36:48,536 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:48,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash 955809095, now seen corresponding path program 1 times [2024-11-24 00:36:48,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:48,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850186074] [2024-11-24 00:36:48,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:48,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:36:49,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:49,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850186074] [2024-11-24 00:36:49,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850186074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:49,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:36:49,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:36:49,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080053034] [2024-11-24 00:36:49,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:49,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:36:49,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:49,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:36:49,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:36:49,842 INFO L87 Difference]: Start difference. First operand 8829 states and 14860 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:51,403 INFO L93 Difference]: Finished difference Result 26481 states and 44574 transitions. [2024-11-24 00:36:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:36:51,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-24 00:36:51,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:51,532 INFO L225 Difference]: With dead ends: 26481 [2024-11-24 00:36:51,533 INFO L226 Difference]: Without dead ends: 17655 [2024-11-24 00:36:51,562 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 00:36:51,564 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 326 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:36:51,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1098 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:36:51,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17655 states. [2024-11-24 00:36:53,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17655 to 17645. [2024-11-24 00:36:53,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17645 states, 14044 states have (on average 1.606664767872401) internal successors, (22564), 14092 states have internal predecessors, (22564), 3536 states have call successors, (3536), 64 states have call predecessors, (3536), 64 states have return successors, (3536), 3488 states have call predecessors, (3536), 3536 states have call successors, (3536) [2024-11-24 00:36:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17645 states to 17645 states and 29636 transitions. [2024-11-24 00:36:53,782 INFO L78 Accepts]: Start accepts. Automaton has 17645 states and 29636 transitions. Word has length 644 [2024-11-24 00:36:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:36:53,783 INFO L471 AbstractCegarLoop]: Abstraction has 17645 states and 29636 transitions. [2024-11-24 00:36:53,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:53,784 INFO L276 IsEmpty]: Start isEmpty. Operand 17645 states and 29636 transitions. [2024-11-24 00:36:53,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-24 00:36:53,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:36:53,810 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:53,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:36:53,811 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:36:53,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:36:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash 821795589, now seen corresponding path program 1 times [2024-11-24 00:36:53,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:36:53,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70995551] [2024-11-24 00:36:53,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:36:53,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:36:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:36:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:36:55,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:36:55,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70995551] [2024-11-24 00:36:55,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70995551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:36:55,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:36:55,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:36:55,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781649467] [2024-11-24 00:36:55,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:36:55,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:36:55,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:36:55,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:36:55,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:36:55,083 INFO L87 Difference]: Start difference. First operand 17645 states and 29636 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:36:57,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:36:57,612 INFO L93 Difference]: Finished difference Result 37081 states and 61702 transitions. [2024-11-24 00:36:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:36:57,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-24 00:36:57,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:36:57,727 INFO L225 Difference]: With dead ends: 37081 [2024-11-24 00:36:57,727 INFO L226 Difference]: Without dead ends: 19439 [2024-11-24 00:36:57,788 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 00:36:57,789 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 575 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:36:57,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 884 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:36:57,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19439 states. [2024-11-24 00:37:00,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19439 to 19373. [2024-11-24 00:37:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19373 states, 15452 states have (on average 1.5762360859435671) internal successors, (24356), 15564 states have internal predecessors, (24356), 3792 states have call successors, (3792), 128 states have call predecessors, (3792), 128 states have return successors, (3792), 3680 states have call predecessors, (3792), 3792 states have call successors, (3792) [2024-11-24 00:37:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19373 states to 19373 states and 31940 transitions. [2024-11-24 00:37:00,274 INFO L78 Accepts]: Start accepts. Automaton has 19373 states and 31940 transitions. Word has length 644 [2024-11-24 00:37:00,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:37:00,276 INFO L471 AbstractCegarLoop]: Abstraction has 19373 states and 31940 transitions. [2024-11-24 00:37:00,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:37:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 19373 states and 31940 transitions. [2024-11-24 00:37:00,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-24 00:37:00,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:37:00,303 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:37:00,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:37:00,303 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:37:00,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:37:00,304 INFO L85 PathProgramCache]: Analyzing trace with hash -953211773, now seen corresponding path program 1 times [2024-11-24 00:37:00,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:37:00,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601873037] [2024-11-24 00:37:00,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:37:00,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:37:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:37:02,045 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:37:02,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:37:02,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601873037] [2024-11-24 00:37:02,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601873037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:37:02,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:37:02,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:37:02,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963340194] [2024-11-24 00:37:02,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:37:02,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:37:02,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:37:02,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:37:02,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:37:02,048 INFO L87 Difference]: Start difference. First operand 19373 states and 31940 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:37:07,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:37:07,169 INFO L93 Difference]: Finished difference Result 83287 states and 134265 transitions. [2024-11-24 00:37:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:37:07,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-24 00:37:07,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:37:07,539 INFO L225 Difference]: With dead ends: 83287 [2024-11-24 00:37:07,539 INFO L226 Difference]: Without dead ends: 63917 [2024-11-24 00:37:07,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:37:07,620 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 1047 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:37:07,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 2885 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:37:07,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63917 states. [2024-11-24 00:37:13,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63917 to 58085. [2024-11-24 00:37:13,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58085 states, 47684 states have (on average 1.553141514973576) internal successors, (74060), 48164 states have internal predecessors, (74060), 9888 states have call successors, (9888), 512 states have call predecessors, (9888), 512 states have return successors, (9888), 9408 states have call predecessors, (9888), 9888 states have call successors, (9888) [2024-11-24 00:37:14,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58085 states to 58085 states and 93836 transitions. [2024-11-24 00:37:14,114 INFO L78 Accepts]: Start accepts. Automaton has 58085 states and 93836 transitions. Word has length 644 [2024-11-24 00:37:14,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:37:14,116 INFO L471 AbstractCegarLoop]: Abstraction has 58085 states and 93836 transitions. [2024-11-24 00:37:14,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-24 00:37:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand 58085 states and 93836 transitions. [2024-11-24 00:37:14,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-24 00:37:14,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:37:14,220 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:37:14,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:37:14,221 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:37:14,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:37:14,223 INFO L85 PathProgramCache]: Analyzing trace with hash -891172159, now seen corresponding path program 1 times [2024-11-24 00:37:14,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:37:14,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282470728] [2024-11-24 00:37:14,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:37:14,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:37:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:37:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-24 00:37:28,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:37:28,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282470728] [2024-11-24 00:37:28,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282470728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:37:28,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:37:28,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:37:28,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731809180] [2024-11-24 00:37:28,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:37:28,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:37:28,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:37:28,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:37:28,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:37:28,243 INFO L87 Difference]: Start difference. First operand 58085 states and 93836 transitions. Second operand has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 14 states have internal predecessors, (152), 3 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 3 states have call predecessors, (99), 3 states have call successors, (99)