./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-industry-pattern/aiob_1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f089d1b40a76f9af7e090d21489c70b68a6ceb7402496399cd1357670ffd9b51 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 04:43:58,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 04:43:58,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 04:43:58,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 04:43:58,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 04:43:58,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 04:43:58,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 04:43:58,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 04:43:58,195 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 04:43:58,195 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 04:43:58,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 04:43:58,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 04:43:58,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 04:43:58,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 04:43:58,196 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 04:43:58,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 04:43:58,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 04:43:58,196 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 04:43:58,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 04:43:58,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 04:43:58,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 04:43:58,196 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 04:43:58,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 04:43:58,197 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 04:43:58,197 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 04:43:58,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 04:43:58,197 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 04:43:58,197 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 04:43:58,197 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 04:43:58,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 04:43:58,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 04:43:58,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 04:43:58,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 04:43:58,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 04:43:58,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 04:43:58,198 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 04:43:58,198 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 04:43:58,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 04:43:58,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 04:43:58,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 04:43:58,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 04:43:58,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 04:43:58,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 04:43:58,198 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> f089d1b40a76f9af7e090d21489c70b68a6ceb7402496399cd1357670ffd9b51 [2025-03-08 04:43:58,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 04:43:58,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 04:43:58,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 04:43:58,405 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 04:43:58,405 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 04:43:58,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/aiob_1.c [2025-03-08 04:43:59,498 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5c01c30/66509502291c402c93a83bfbcc207317/FLAG0ef8dfa0d [2025-03-08 04:43:59,724 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 04:43:59,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_1.c [2025-03-08 04:43:59,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5c01c30/66509502291c402c93a83bfbcc207317/FLAG0ef8dfa0d [2025-03-08 04:43:59,750 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5c01c30/66509502291c402c93a83bfbcc207317 [2025-03-08 04:43:59,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 04:43:59,755 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 04:43:59,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 04:43:59,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 04:43:59,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 04:43:59,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:43:59" (1/1) ... [2025-03-08 04:43:59,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47818d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:43:59, skipping insertion in model container [2025-03-08 04:43:59,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:43:59" (1/1) ... [2025-03-08 04:43:59,778 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 04:43:59,959 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_1.c[7657,7670] [2025-03-08 04:43:59,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 04:43:59,969 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 04:44:00,008 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_1.c[7657,7670] [2025-03-08 04:44:00,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 04:44:00,020 INFO L204 MainTranslator]: Completed translation [2025-03-08 04:44:00,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00 WrapperNode [2025-03-08 04:44:00,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 04:44:00,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 04:44:00,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 04:44:00,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 04:44:00,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,067 INFO L138 Inliner]: procedures = 21, calls = 242, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 352 [2025-03-08 04:44:00,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 04:44:00,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 04:44:00,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 04:44:00,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 04:44:00,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,084 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,113 INFO L175 MemorySlicer]: Split 226 memory accesses to 6 slices as follows [2, 7, 2, 43, 41, 131]. 58 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 7, 2, 0, 0, 0]. The 169 writes are split as follows [0, 0, 0, 42, 0, 127]. [2025-03-08 04:44:00,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,134 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 04:44:00,141 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 04:44:00,141 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 04:44:00,141 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 04:44:00,145 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (1/1) ... [2025-03-08 04:44:00,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 04:44:00,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:44:00,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 04:44:00,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 04:44:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 04:44:00,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 04:44:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 04:44:00,307 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 04:44:00,309 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 04:44:05,337 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2025-03-08 04:44:05,338 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 04:44:05,355 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 04:44:05,358 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 04:44:05,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:44:05 BoogieIcfgContainer [2025-03-08 04:44:05,359 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 04:44:05,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 04:44:05,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 04:44:05,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 04:44:05,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 04:43:59" (1/3) ... [2025-03-08 04:44:05,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c96804b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:44:05, skipping insertion in model container [2025-03-08 04:44:05,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:00" (2/3) ... [2025-03-08 04:44:05,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c96804b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:44:05, skipping insertion in model container [2025-03-08 04:44:05,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:44:05" (3/3) ... [2025-03-08 04:44:05,367 INFO L128 eAbstractionObserver]: Analyzing ICFG aiob_1.c [2025-03-08 04:44:05,378 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 04:44:05,379 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aiob_1.c that has 1 procedures, 15 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 04:44:05,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 04:44:05,428 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;@55cd467d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 04:44:05,429 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 04:44:05,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:44:05,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-08 04:44:05,436 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:44:05,436 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-08 04:44:05,437 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:44:05,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:44:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1330254387, now seen corresponding path program 1 times [2025-03-08 04:44:05,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:44:05,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245544213] [2025-03-08 04:44:05,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:44:05,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:44:09,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-08 04:44:10,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-08 04:44:10,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:44:10,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:44:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 04:44:10,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:44:10,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245544213] [2025-03-08 04:44:10,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245544213] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 04:44:10,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 04:44:10,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 04:44:10,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748070484] [2025-03-08 04:44:10,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 04:44:10,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 04:44:10,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:44:10,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 04:44:10,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 04:44:10,958 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:44:11,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 04:44:11,145 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2025-03-08 04:44:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 04:44:11,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-08 04:44:11,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 04:44:11,151 INFO L225 Difference]: With dead ends: 34 [2025-03-08 04:44:11,151 INFO L226 Difference]: Without dead ends: 15 [2025-03-08 04:44:11,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 04:44:11,155 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 04:44:11,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 04:44:11,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-08 04:44:11,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2025-03-08 04:44:11,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:44:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2025-03-08 04:44:11,176 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2025-03-08 04:44:11,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 04:44:11,176 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-03-08 04:44:11,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:44:11,176 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2025-03-08 04:44:11,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-08 04:44:11,177 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:44:11,177 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 04:44:11,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 04:44:11,177 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:44:11,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:44:11,178 INFO L85 PathProgramCache]: Analyzing trace with hash -315534126, now seen corresponding path program 1 times [2025-03-08 04:44:11,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:44:11,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635222083] [2025-03-08 04:44:11,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:44:11,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:44:15,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-08 04:44:15,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-08 04:44:15,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:44:15,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:44:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 04:44:16,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:44:16,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635222083] [2025-03-08 04:44:16,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635222083] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 04:44:16,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493782826] [2025-03-08 04:44:16,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:44:16,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:44:16,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:44:16,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 04:44:16,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 04:44:20,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-08 04:44:33,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-08 04:44:33,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:44:33,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:44:33,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-08 04:44:33,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 04:44:33,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 04:44:33,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 04:44:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 04:44:34,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493782826] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 04:44:34,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 04:44:34,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-03-08 04:44:34,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013257900] [2025-03-08 04:44:34,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 04:44:34,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 04:44:34,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:44:34,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 04:44:34,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-08 04:44:34,210 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:44:38,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:44:39,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 04:44:39,583 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2025-03-08 04:44:39,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 04:44:39,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-08 04:44:39,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 04:44:39,584 INFO L225 Difference]: With dead ends: 32 [2025-03-08 04:44:39,584 INFO L226 Difference]: Without dead ends: 30 [2025-03-08 04:44:39,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2025-03-08 04:44:39,585 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2025-03-08 04:44:39,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 26 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2025-03-08 04:44:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-08 04:44:39,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2025-03-08 04:44:39,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:44:39,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2025-03-08 04:44:39,590 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 12 [2025-03-08 04:44:39,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 04:44:39,590 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2025-03-08 04:44:39,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:44:39,590 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2025-03-08 04:44:39,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-08 04:44:39,591 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:44:39,591 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2025-03-08 04:44:39,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 04:44:39,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:44:39,792 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:44:39,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:44:39,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1545793779, now seen corresponding path program 2 times [2025-03-08 04:44:39,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:44:39,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100206183] [2025-03-08 04:44:39,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 04:44:39,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:44:43,995 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-03-08 04:44:44,132 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 27 statements. [2025-03-08 04:44:44,132 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 04:44:44,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:45:30,441 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array Int Int)) 0))) (= (store .cse0 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 24642) (let ((.cse109 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 404))) (store (let ((.cse108 (+ 32 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse107 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 96))) (store (let ((.cse106 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 268))) (store (let ((.cse105 (+ 408 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse104 (+ 468 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse103 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 208))) (store (let ((.cse102 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 172))) (store (let ((.cse101 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 396))) (store (let ((.cse100 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 180))) (store (let ((.cse99 (+ 148 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse98 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 128))) (store (let ((.cse97 (+ 232 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse96 (+ 284 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse95 (+ 476 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse94 (+ 160 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse93 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 240))) (store (let ((.cse92 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 220))) (store (let ((.cse91 (+ 44 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse90 (+ 112 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse89 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 132))) (store (let ((.cse88 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 168))) (store (let ((.cse87 (+ 252 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse86 (+ 280 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse85 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 364))) (store (let ((.cse84 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 224))) (store (let ((.cse83 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 216))) (store (let ((.cse82 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 292))) (store (let ((.cse81 (+ 228 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse80 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 420))) (store (let ((.cse79 (+ 440 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse78 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 264))) (store (let ((.cse77 (+ 400 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse76 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 432))) (store (let ((.cse75 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 360))) (store (let ((.cse74 (+ 464 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse73 (+ 392 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse72 (+ 108 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse71 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 272))) (store (let ((.cse70 (+ 88 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse69 (+ 192 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse68 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 188))) (store (let ((.cse67 (+ 68 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse66 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 348))) (store (let ((.cse65 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 444))) (store (let ((.cse64 (+ 156 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse63 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 320))) (store (let ((.cse62 (+ 76 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse61 (+ 116 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse60 (+ 412 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse59 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 312))) (store (let ((.cse58 (+ 372 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse57 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 80))) (store (let ((.cse56 (+ 144 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse55 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 376))) (store (let ((.cse54 (+ 200 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse53 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 300))) (store (let ((.cse52 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 8))) (store (let ((.cse51 (+ 92 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse50 (+ 204 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse49 (+ 340 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse48 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 20))) (store (let ((.cse47 (+ 256 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse46 (+ 416 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse45 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 136))) (store (let ((.cse44 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 24))) (store (let ((.cse43 (+ 56 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse42 (+ 164 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse41 (+ 84 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse40 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 60))) (store (let ((.cse39 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 248))) (store (let ((.cse38 (+ 212 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse37 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 36))) (store (let ((.cse36 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 48))) (store (let ((.cse35 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 100))) (store (let ((.cse34 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 304))) (store (let ((.cse33 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 308))) (store (let ((.cse32 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 336))) (store (let ((.cse31 (+ 452 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse30 (+ 276 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse29 (+ 140 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse28 (+ 176 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse27 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 456))) (store (let ((.cse26 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 332))) (store (let ((.cse25 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 120))) (store (let ((.cse24 (+ 196 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse23 (+ 380 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse22 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 384))) (store (let ((.cse21 (+ 104 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse20 (+ 344 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse19 (+ 356 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse18 (+ 260 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse17 (+ 368 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse16 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 328))) (store (let ((.cse15 (+ 352 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse14 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 12))) (store (let ((.cse13 (+ 428 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse12 (+ 244 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse11 (+ 388 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse10 (+ 316 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse9 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 288))) (store (let ((.cse8 (+ 152 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse7 (+ 184 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse6 (+ 236 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse5 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 324))) (store (let ((.cse4 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 480))) (store (let ((.cse3 (+ 72 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse2 (+ 296 |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset|))) (store (let ((.cse1 (+ |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.offset| 488))) (store (select |c_#memory_int#5| |c_ULTIMATE.start_Id_MCDC_95_~#Id_MCDC_101~0#1.base|) .cse1 (select .cse0 .cse1))) .cse2 (select .cse0 .cse2))) .cse3 (select .cse0 .cse3))) .cse4 (select .cse0 .cse4))) .cse5 (select .cse0 .cse5))) .cse6 (select .cse0 .cse6))) .cse7 (select .cse0 .cse7))) .cse8 (select .cse0 .cse8))) .cse9 (select .cse0 .cse9))) .cse10 (select .cse0 .cse10))) .cse11 (select .cse0 .cse11))) .cse12 (select .cse0 .cse12))) .cse13 (select .cse0 .cse13))) .cse14 (select .cse0 .cse14))) .cse15 (select .cse0 .cse15))) .cse16 (select .cse0 .cse16))) .cse17 (select .cse0 .cse17))) .cse18 (select .cse0 .cse18))) .cse19 (select .cse0 .cse19))) .cse20 (select .cse0 .cse20))) .cse21 (select .cse0 .cse21))) .cse22 (select .cse0 .cse22))) .cse23 (select .cse0 .cse23))) .cse24 (select .cse0 .cse24))) .cse25 (select .cse0 .cse25))) .cse26 (select .cse0 .cse26))) .cse27 (select .cse0 .cse27))) .cse28 (select .cse0 .cse28))) .cse29 (select .cse0 .cse29))) .cse30 (select .cse0 .cse30))) .cse31 (select .cse0 .cse31))) .cse32 (select .cse0 .cse32))) .cse33 (select .cse0 .cse33))) .cse34 (select .cse0 .cse34))) .cse35 (select .cse0 .cse35))) .cse36 (select .cse0 .cse36))) .cse37 (select .cse0 .cse37))) .cse38 (select .cse0 .cse38))) .cse39 (select .cse0 .cse39))) .cse40 (select .cse0 .cse40))) .cse41 (select .cse0 .cse41))) .cse42 (select .cse0 .cse42))) .cse43 (select .cse0 .cse43))) .cse44 (select .cse0 .cse44))) .cse45 (select .cse0 .cse45))) .cse46 (select .cse0 .cse46))) .cse47 (select .cse0 .cse47))) .cse48 (select .cse0 .cse48))) .cse49 (select .cse0 .cse49))) .cse50 (select .cse0 .cse50))) .cse51 (select .cse0 .cse51))) .cse52 (select .cse0 .cse52))) .cse53 (select .cse0 .cse53))) .cse54 (select .cse0 .cse54))) .cse55 (select .cse0 .cse55))) .cse56 (select .cse0 .cse56))) .cse57 (select .cse0 .cse57))) .cse58 (select .cse0 .cse58))) .cse59 (select .cse0 .cse59))) .cse60 (select .cse0 .cse60))) .cse61 (select .cse0 .cse61))) .cse62 (select .cse0 .cse62))) .cse63 (select .cse0 .cse63))) .cse64 (select .cse0 .cse64))) .cse65 (select .cse0 .cse65))) .cse66 (select .cse0 .cse66))) .cse67 (select .cse0 .cse67))) .cse68 (select .cse0 .cse68))) .cse69 (select .cse0 .cse69))) .cse70 (select .cse0 .cse70))) .cse71 (select .cse0 .cse71))) .cse72 (select .cse0 .cse72))) .cse73 (select .cse0 .cse73))) .cse74 (select .cse0 .cse74))) .cse75 (select .cse0 .cse75))) .cse76 (select .cse0 .cse76))) .cse77 (select .cse0 .cse77))) .cse78 (select .cse0 .cse78))) .cse79 (select .cse0 .cse79))) .cse80 (select .cse0 .cse80))) .cse81 (select .cse0 .cse81))) .cse82 (select .cse0 .cse82))) .cse83 (select .cse0 .cse83))) .cse84 (select .cse0 .cse84))) .cse85 (select .cse0 .cse85))) .cse86 (select .cse0 .cse86))) .cse87 (select .cse0 .cse87))) .cse88 (select .cse0 .cse88))) .cse89 (select .cse0 .cse89))) .cse90 (select .cse0 .cse90))) .cse91 (select .cse0 .cse91))) .cse92 (select .cse0 .cse92))) .cse93 (select .cse0 .cse93))) .cse94 (select .cse0 .cse94))) .cse95 (select .cse0 .cse95))) .cse96 (select .cse0 .cse96))) .cse97 (select .cse0 .cse97))) .cse98 (select .cse0 .cse98))) .cse99 (select .cse0 .cse99))) .cse100 (select .cse0 .cse100))) .cse101 (select .cse0 .cse101))) .cse102 (select .cse0 .cse102))) .cse103 (select .cse0 .cse103))) .cse104 (select .cse0 .cse104))) .cse105 (select .cse0 .cse105))) .cse106 (select .cse0 .cse106))) .cse107 (select .cse0 .cse107))) .cse108 (select .cse0 .cse108))) .cse109 (select .cse0 .cse109))))) is different from false