./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/busybox-1.22.0/head-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/busybox-1.22.0/head-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0e88082971628d59ef5682895c2d853cfcbbf7f0162214aa0affb543a2978ac5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:02:46,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:02:47,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2025-02-06 12:02:47,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:02:47,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:02:47,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:02:47,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:02:47,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:02:47,042 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:02:47,042 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:02:47,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:02:47,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:02:47,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:02:47,043 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:02:47,043 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:02:47,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:02:47,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:02:47,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:02:47,043 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:02:47,043 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:02:47,043 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:02:47,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:02:47,044 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:02:47,044 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:02:47,044 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:02:47,044 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:02:47,044 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:02:47,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:02:47,045 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:02:47,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:02:47,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:02:47,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:02:47,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:02:47,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:02:47,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:02:47,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:02:47,046 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:02:47,046 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:02:47,046 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:02:47,047 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-jdk21/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e88082971628d59ef5682895c2d853cfcbbf7f0162214aa0affb543a2978ac5 [2025-02-06 12:02:47,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:02:47,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:02:47,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:02:47,334 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:02:47,334 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:02:47,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/head-1.i [2025-02-06 12:02:48,652 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dcd09d652/1eb475435be2421587b9b79795b21cdb/FLAGde98b857c [2025-02-06 12:02:49,118 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:02:49,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/head-1.i [2025-02-06 12:02:49,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dcd09d652/1eb475435be2421587b9b79795b21cdb/FLAGde98b857c [2025-02-06 12:02:49,173 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dcd09d652/1eb475435be2421587b9b79795b21cdb [2025-02-06 12:02:49,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:02:49,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:02:49,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:02:49,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:02:49,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:02:49,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:02:49" (1/1) ... [2025-02-06 12:02:49,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4828b924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:49, skipping insertion in model container [2025-02-06 12:02:49,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:02:49" (1/1) ... [2025-02-06 12:02:49,248 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:02:50,196 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,199 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,201 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,206 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,207 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,208 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,213 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,214 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,215 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,216 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,224 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,230 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,232 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,234 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,238 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,240 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,241 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,242 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,243 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,244 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,250 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,252 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,257 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,260 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,261 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,273 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,275 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,276 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,279 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,280 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,281 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,282 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,282 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,284 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,284 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,301 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,311 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,324 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:02:50,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:02:50,378 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:02:50,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:02:50,700 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-02-06 12:02:50,709 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:02:50,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50 WrapperNode [2025-02-06 12:02:50,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:02:50,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:02:50,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:02:50,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:02:50,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:50,781 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:50,874 INFO L138 Inliner]: procedures = 581, calls = 697, calls flagged for inlining = 30, calls inlined = 28, statements flattened = 1393 [2025-02-06 12:02:50,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:02:50,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:02:50,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:02:50,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:02:50,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:50,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:50,906 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:50,990 INFO L175 MemorySlicer]: Split 566 memory accesses to 19 slices as follows [2, 3, 7, 9, 3, 3, 2, 47, 15, 32, 1, 9, 18, 4, 24, 10, 355, 2, 20]. 63 percent of accesses are in the largest equivalence class. The 379 initializations are split as follows [2, 0, 0, 0, 0, 3, 2, 2, 0, 2, 0, 1, 0, 1, 0, 7, 355, 0, 4]. The 120 writes are split as follows [0, 0, 7, 6, 3, 0, 0, 35, 1, 21, 1, 4, 4, 1, 21, 0, 0, 1, 15]. [2025-02-06 12:02:50,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:50,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:51,073 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:51,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:51,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:51,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:51,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:02:51,158 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:02:51,160 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:02:51,160 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:02:51,161 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (1/1) ... [2025-02-06 12:02:51,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:02:51,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:02:51,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:02:51,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:02:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#0 [2025-02-06 12:02:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#1 [2025-02-06 12:02:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#2 [2025-02-06 12:02:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#3 [2025-02-06 12:02:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#4 [2025-02-06 12:02:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#5 [2025-02-06 12:02:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#6 [2025-02-06 12:02:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#7 [2025-02-06 12:02:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#8 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#9 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#10 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#11 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#12 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#13 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#14 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#15 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#16 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#17 [2025-02-06 12:02:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#18 [2025-02-06 12:02:51,226 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#0 [2025-02-06 12:02:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#1 [2025-02-06 12:02:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#2 [2025-02-06 12:02:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#3 [2025-02-06 12:02:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#4 [2025-02-06 12:02:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#5 [2025-02-06 12:02:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#6 [2025-02-06 12:02:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#7 [2025-02-06 12:02:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#8 [2025-02-06 12:02:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#9 [2025-02-06 12:02:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#10 [2025-02-06 12:02:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#11 [2025-02-06 12:02:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#12 [2025-02-06 12:02:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#13 [2025-02-06 12:02:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#14 [2025-02-06 12:02:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#15 [2025-02-06 12:02:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#16 [2025-02-06 12:02:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#17 [2025-02-06 12:02:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#18 [2025-02-06 12:02:51,229 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2025-02-06 12:02:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _IO_getc [2025-02-06 12:02:51,229 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2025-02-06 12:02:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2025-02-06 12:02:51,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 12:02:51,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2025-02-06 12:02:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-02-06 12:02:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-02-06 12:02:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-02-06 12:02:51,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 12:02:51,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 12:02:51,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 12:02:51,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-02-06 12:02:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2025-02-06 12:02:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:02:51,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2025-02-06 12:02:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#14 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#15 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#16 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#17 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#18 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#14 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#15 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#16 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#17 [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#18 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure getopt [2025-02-06 12:02:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure getopt [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2025-02-06 12:02:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 12:02:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 12:02:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 12:02:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-02-06 12:02:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-02-06 12:02:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-02-06 12:02:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2025-02-06 12:02:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2025-02-06 12:02:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2025-02-06 12:02:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2025-02-06 12:02:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 12:02:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 12:02:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc_fgets [2025-02-06 12:02:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc_fgets [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-02-06 12:02:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-06 12:02:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-06 12:02:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-06 12:02:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-06 12:02:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-06 12:02:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-06 12:02:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-06 12:02:51,777 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:02:51,780 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:02:52,157 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2860: havoc #t~nondet150; [2025-02-06 12:02:53,003 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2770: call ULTIMATE.dealloc(~#i~0#1.base, ~#i~0#1.offset);havoc ~#i~0#1.base, ~#i~0#1.offset; [2025-02-06 12:02:58,722 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2420: havoc fclose_if_not_stdin_#t~bitwise80#1; [2025-02-06 12:02:58,722 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2492: call ULTIMATE.dealloc(__main_~#negative_N~0#1.base, __main_~#negative_N~0#1.offset);havoc __main_~#negative_N~0#1.base, __main_~#negative_N~0#1.offset; [2025-02-06 12:02:58,999 INFO L? ?]: Removed 960 outVars from TransFormulas that were not future-live. [2025-02-06 12:02:58,999 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:02:59,064 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:02:59,067 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:02:59,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:02:59 BoogieIcfgContainer [2025-02-06 12:02:59,068 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:02:59,071 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:02:59,071 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:02:59,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:02:59,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:02:49" (1/3) ... [2025-02-06 12:02:59,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c4a76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:02:59, skipping insertion in model container [2025-02-06 12:02:59,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:02:50" (2/3) ... [2025-02-06 12:02:59,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c4a76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:02:59, skipping insertion in model container [2025-02-06 12:02:59,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:02:59" (3/3) ... [2025-02-06 12:02:59,080 INFO L128 eAbstractionObserver]: Analyzing ICFG head-1.i [2025-02-06 12:02:59,097 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:02:59,102 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG head-1.i that has 48 procedures, 1080 locations, 1 initial locations, 41 loop locations, and 359 error locations. [2025-02-06 12:02:59,167 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:02:59,178 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=None, 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;@2dd3203e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:02:59,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 359 error locations. [2025-02-06 12:02:59,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 723 states, 430 states have (on average 1.869767441860465) internal successors, (804), 685 states have internal predecessors, (804), 29 states have call successors, (29), 12 states have call predecessors, (29), 12 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-02-06 12:02:59,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-06 12:02:59,189 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:02:59,189 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-06 12:02:59,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr153REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:02:59,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:02:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1366336, now seen corresponding path program 1 times [2025-02-06 12:02:59,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:02:59,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197945549] [2025-02-06 12:02:59,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:02:59,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:03:00,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:03:00,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:03:00,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:00,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:01,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:03:01,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197945549] [2025-02-06 12:03:01,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197945549] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:03:01,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:03:01,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:03:01,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648460337] [2025-02-06 12:03:01,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:03:01,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:03:01,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:03:01,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:03:01,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:03:01,279 INFO L87 Difference]: Start difference. First operand has 723 states, 430 states have (on average 1.869767441860465) internal successors, (804), 685 states have internal predecessors, (804), 29 states have call successors, (29), 12 states have call predecessors, (29), 12 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-02-06 12:03:05,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:03:06,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:03:06,489 INFO L93 Difference]: Finished difference Result 500 states and 586 transitions. [2025-02-06 12:03:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:03:06,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-02-06 12:03:06,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:03:06,500 INFO L225 Difference]: With dead ends: 500 [2025-02-06 12:03:06,501 INFO L226 Difference]: Without dead ends: 500 [2025-02-06 12:03:06,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:03:06,506 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 10 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:03:06,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 991 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2025-02-06 12:03:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2025-02-06 12:03:06,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2025-02-06 12:03:06,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 309 states have (on average 1.7637540453074434) internal successors, (545), 472 states have internal predecessors, (545), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:03:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 586 transitions. [2025-02-06 12:03:06,580 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 586 transitions. Word has length 3 [2025-02-06 12:03:06,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:03:06,580 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 586 transitions. [2025-02-06 12:03:06,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-02-06 12:03:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 586 transitions. [2025-02-06 12:03:06,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-06 12:03:06,581 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:03:06,581 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-06 12:03:06,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:03:06,582 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr152REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:03:06,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:03:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1366335, now seen corresponding path program 1 times [2025-02-06 12:03:06,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:03:06,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706926745] [2025-02-06 12:03:06,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:03:06,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:03:07,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:03:07,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:03:07,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:07,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:07,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:03:07,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706926745] [2025-02-06 12:03:07,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706926745] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:03:07,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:03:07,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:03:07,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054638290] [2025-02-06 12:03:07,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:03:07,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:03:07,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:03:07,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:03:07,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:03:07,584 INFO L87 Difference]: Start difference. First operand 500 states and 586 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-02-06 12:03:11,619 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 [] [2025-02-06 12:03:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:03:12,841 INFO L93 Difference]: Finished difference Result 707 states and 841 transitions. [2025-02-06 12:03:12,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:03:12,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-02-06 12:03:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:03:12,847 INFO L225 Difference]: With dead ends: 707 [2025-02-06 12:03:12,847 INFO L226 Difference]: Without dead ends: 707 [2025-02-06 12:03:12,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:03:12,848 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 296 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:03:12,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 831 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 271 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2025-02-06 12:03:12,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2025-02-06 12:03:12,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 498. [2025-02-06 12:03:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 309 states have (on average 1.7572815533980584) internal successors, (543), 470 states have internal predecessors, (543), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:03:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 584 transitions. [2025-02-06 12:03:12,870 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 584 transitions. Word has length 3 [2025-02-06 12:03:12,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:03:12,870 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 584 transitions. [2025-02-06 12:03:12,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-02-06 12:03:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 584 transitions. [2025-02-06 12:03:12,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-06 12:03:12,871 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:03:12,871 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 12:03:12,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:03:12,871 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr148REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:03:12,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:03:12,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2051081949, now seen corresponding path program 1 times [2025-02-06 12:03:12,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:03:12,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500584136] [2025-02-06 12:03:12,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:03:12,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:03:13,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 12:03:13,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 12:03:13,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:13,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:13,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:03:13,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500584136] [2025-02-06 12:03:13,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500584136] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:03:13,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:03:13,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:03:13,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564045487] [2025-02-06 12:03:13,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:03:13,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:03:13,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:03:13,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:03:13,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:03:13,735 INFO L87 Difference]: Start difference. First operand 498 states and 584 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2025-02-06 12:03:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:03:13,806 INFO L93 Difference]: Finished difference Result 501 states and 588 transitions. [2025-02-06 12:03:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:03:13,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2025-02-06 12:03:13,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:03:13,809 INFO L225 Difference]: With dead ends: 501 [2025-02-06 12:03:13,809 INFO L226 Difference]: Without dead ends: 501 [2025-02-06 12:03:13,810 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 [2025-02-06 12:03:13,811 INFO L435 NwaCegarLoop]: 579 mSDtfsCounter, 2 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:03:13,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1155 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 12:03:13,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2025-02-06 12:03:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 499. [2025-02-06 12:03:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 310 states have (on average 1.7548387096774194) internal successors, (544), 471 states have internal predecessors, (544), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:03:13,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 585 transitions. [2025-02-06 12:03:13,833 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 585 transitions. Word has length 6 [2025-02-06 12:03:13,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:03:13,833 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 585 transitions. [2025-02-06 12:03:13,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2025-02-06 12:03:13,834 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 585 transitions. [2025-02-06 12:03:13,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-06 12:03:13,834 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:03:13,834 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 12:03:13,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:03:13,834 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr151REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:03:13,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:03:13,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2051082110, now seen corresponding path program 1 times [2025-02-06 12:03:13,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:03:13,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111045471] [2025-02-06 12:03:13,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:03:13,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:03:14,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 12:03:14,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 12:03:14,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:14,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:15,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:03:15,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111045471] [2025-02-06 12:03:15,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111045471] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:03:15,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:03:15,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:03:15,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545842639] [2025-02-06 12:03:15,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:03:15,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:03:15,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:03:15,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:03:15,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:03:15,226 INFO L87 Difference]: Start difference. First operand 499 states and 585 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2025-02-06 12:03:19,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:03:23,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:03:24,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:03:24,260 INFO L93 Difference]: Finished difference Result 501 states and 587 transitions. [2025-02-06 12:03:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:03:24,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2025-02-06 12:03:24,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:03:24,263 INFO L225 Difference]: With dead ends: 501 [2025-02-06 12:03:24,263 INFO L226 Difference]: Without dead ends: 501 [2025-02-06 12:03:24,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:03:24,266 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 11 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:03:24,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 991 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2025-02-06 12:03:24,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2025-02-06 12:03:24,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 500. [2025-02-06 12:03:24,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 311 states have (on average 1.752411575562701) internal successors, (545), 472 states have internal predecessors, (545), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:03:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 586 transitions. [2025-02-06 12:03:24,282 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 586 transitions. Word has length 6 [2025-02-06 12:03:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:03:24,282 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 586 transitions. [2025-02-06 12:03:24,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2025-02-06 12:03:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 586 transitions. [2025-02-06 12:03:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 12:03:24,283 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:03:24,283 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:03:24,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:03:24,283 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr148REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:03:24,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:03:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash -711314150, now seen corresponding path program 1 times [2025-02-06 12:03:24,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:03:24,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655179067] [2025-02-06 12:03:24,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:03:24,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:03:24,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:03:24,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:03:24,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:24,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:25,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:03:25,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655179067] [2025-02-06 12:03:25,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655179067] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:03:25,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650504765] [2025-02-06 12:03:25,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:03:25,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:03:25,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:03:25,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:03:25,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 12:03:26,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:03:26,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:03:26,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:26,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:26,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 1663 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:03:26,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:03:26,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:26,318 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:03:26,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:26,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650504765] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:03:26,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:03:26,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 12:03:26,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171652283] [2025-02-06 12:03:26,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:03:26,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:03:26,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:03:26,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:03:26,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:03:26,471 INFO L87 Difference]: Start difference. First operand 500 states and 586 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2025-02-06 12:03:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:03:26,612 INFO L93 Difference]: Finished difference Result 508 states and 596 transitions. [2025-02-06 12:03:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:03:26,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) Word has length 9 [2025-02-06 12:03:26,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:03:26,617 INFO L225 Difference]: With dead ends: 508 [2025-02-06 12:03:26,617 INFO L226 Difference]: Without dead ends: 508 [2025-02-06 12:03:26,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:03:26,619 INFO L435 NwaCegarLoop]: 579 mSDtfsCounter, 4 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:03:26,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1155 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 12:03:26,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2025-02-06 12:03:26,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2025-02-06 12:03:26,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 319 states have (on average 1.7398119122257054) internal successors, (555), 480 states have internal predecessors, (555), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:03:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 596 transitions. [2025-02-06 12:03:26,637 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 596 transitions. Word has length 9 [2025-02-06 12:03:26,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:03:26,637 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 596 transitions. [2025-02-06 12:03:26,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2025-02-06 12:03:26,637 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 596 transitions. [2025-02-06 12:03:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 12:03:26,637 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:03:26,637 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:03:26,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 12:03:26,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:03:26,839 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr151REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:03:26,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:03:26,839 INFO L85 PathProgramCache]: Analyzing trace with hash -711313989, now seen corresponding path program 1 times [2025-02-06 12:03:26,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:03:26,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887860261] [2025-02-06 12:03:26,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:03:26,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:03:27,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:03:27,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:03:27,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:27,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:28,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:03:28,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887860261] [2025-02-06 12:03:28,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887860261] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:03:28,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206026068] [2025-02-06 12:03:28,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:03:28,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:03:28,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:03:28,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:03:28,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 12:03:29,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:03:29,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:03:29,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:29,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:29,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 12:03:29,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:03:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:29,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:03:30,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2025-02-06 12:03:30,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:30,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206026068] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:03:30,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:03:30,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2025-02-06 12:03:30,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650592412] [2025-02-06 12:03:30,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:03:30,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 12:03:30,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:03:30,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 12:03:30,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2025-02-06 12:03:30,152 INFO L87 Difference]: Start difference. First operand 508 states and 596 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 14 states have internal predecessors, (25), 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) [2025-02-06 12:03:34,181 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 [] [2025-02-06 12:03:38,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:03:42,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:03:47,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:03:47,466 INFO L93 Difference]: Finished difference Result 507 states and 593 transitions. [2025-02-06 12:03:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:03:47,467 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 14 states have internal predecessors, (25), 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 9 [2025-02-06 12:03:47,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:03:47,469 INFO L225 Difference]: With dead ends: 507 [2025-02-06 12:03:47,469 INFO L226 Difference]: Without dead ends: 507 [2025-02-06 12:03:47,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2025-02-06 12:03:47,470 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 791 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 14 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:03:47,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2507 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 813 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2025-02-06 12:03:47,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2025-02-06 12:03:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2025-02-06 12:03:47,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 319 states have (on average 1.7304075235109717) internal successors, (552), 479 states have internal predecessors, (552), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:03:47,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 593 transitions. [2025-02-06 12:03:47,491 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 593 transitions. Word has length 9 [2025-02-06 12:03:47,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:03:47,491 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 593 transitions. [2025-02-06 12:03:47,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 14 states have internal predecessors, (25), 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) [2025-02-06 12:03:47,491 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 593 transitions. [2025-02-06 12:03:47,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 12:03:47,491 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:03:47,492 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1] [2025-02-06 12:03:47,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 12:03:47,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:03:47,697 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr148REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:03:47,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:03:47,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1822731107, now seen corresponding path program 2 times [2025-02-06 12:03:47,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:03:47,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847897203] [2025-02-06 12:03:47,698 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:03:47,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:03:48,189 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-06 12:03:48,239 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 18 statements. [2025-02-06 12:03:48,239 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:03:48,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:48,837 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 12:03:48,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:03:48,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847897203] [2025-02-06 12:03:48,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847897203] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:03:48,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:03:48,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:03:48,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625498053] [2025-02-06 12:03:48,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:03:48,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:03:48,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:03:48,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:03:48,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:03:48,839 INFO L87 Difference]: Start difference. First operand 507 states and 593 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-02-06 12:03:51,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:03:51,301 INFO L93 Difference]: Finished difference Result 878 states and 1048 transitions. [2025-02-06 12:03:51,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:03:51,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 18 [2025-02-06 12:03:51,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:03:51,305 INFO L225 Difference]: With dead ends: 878 [2025-02-06 12:03:51,305 INFO L226 Difference]: Without dead ends: 878 [2025-02-06 12:03:51,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:03:51,306 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 486 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-06 12:03:51,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1201 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-06 12:03:51,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2025-02-06 12:03:51,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 550. [2025-02-06 12:03:51,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 359 states have (on average 1.724233983286908) internal successors, (619), 518 states have internal predecessors, (619), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 12:03:51,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 664 transitions. [2025-02-06 12:03:51,327 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 664 transitions. Word has length 18 [2025-02-06 12:03:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:03:51,327 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 664 transitions. [2025-02-06 12:03:51,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-02-06 12:03:51,328 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 664 transitions. [2025-02-06 12:03:51,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 12:03:51,328 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:03:51,328 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1] [2025-02-06 12:03:51,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:03:51,328 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr149REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:03:51,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:03:51,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1822731106, now seen corresponding path program 1 times [2025-02-06 12:03:51,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:03:51,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891139111] [2025-02-06 12:03:51,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:03:51,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:03:51,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:03:51,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:03:51,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:51,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:52,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:03:52,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891139111] [2025-02-06 12:03:52,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891139111] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:03:52,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933595744] [2025-02-06 12:03:52,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:03:52,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:03:52,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:03:52,373 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:03:52,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 12:03:53,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:03:53,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:03:53,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:03:53,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:53,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 12:03:53,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:03:53,682 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:53,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:03:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:03:54,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933595744] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:03:54,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:03:54,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-02-06 12:03:54,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084548028] [2025-02-06 12:03:54,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:03:54,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 12:03:54,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:03:54,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 12:03:54,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-06 12:03:54,077 INFO L87 Difference]: Start difference. First operand 550 states and 664 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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) [2025-02-06 12:03:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:03:54,336 INFO L93 Difference]: Finished difference Result 568 states and 682 transitions. [2025-02-06 12:03:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 12:03:54,336 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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 18 [2025-02-06 12:03:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:03:54,339 INFO L225 Difference]: With dead ends: 568 [2025-02-06 12:03:54,339 INFO L226 Difference]: Without dead ends: 568 [2025-02-06 12:03:54,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-06 12:03:54,340 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 4 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:03:54,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2303 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 12:03:54,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2025-02-06 12:03:54,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2025-02-06 12:03:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 377 states have (on average 1.6896551724137931) internal successors, (637), 536 states have internal predecessors, (637), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 12:03:54,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 682 transitions. [2025-02-06 12:03:54,354 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 682 transitions. Word has length 18 [2025-02-06 12:03:54,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:03:54,354 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 682 transitions. [2025-02-06 12:03:54,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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) [2025-02-06 12:03:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 682 transitions. [2025-02-06 12:03:54,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-02-06 12:03:54,355 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:03:54,355 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1] [2025-02-06 12:03:54,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 12:03:54,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:03:54,556 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr149REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:03:54,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:03:54,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1266066114, now seen corresponding path program 2 times [2025-02-06 12:03:54,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:03:54,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576878624] [2025-02-06 12:03:54,557 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:03:54,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:03:55,159 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-02-06 12:03:55,211 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 36 statements. [2025-02-06 12:03:55,211 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:03:55,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:03:55,900 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 12:03:55,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:03:55,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576878624] [2025-02-06 12:03:55,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576878624] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:03:55,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:03:55,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:03:55,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625876421] [2025-02-06 12:03:55,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:03:55,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:03:55,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:03:55,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:03:55,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:03:55,901 INFO L87 Difference]: Start difference. First operand 568 states and 682 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-02-06 12:03:59,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:04:03,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:04:03,566 INFO L93 Difference]: Finished difference Result 1152 states and 1378 transitions. [2025-02-06 12:04:03,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:04:03,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 36 [2025-02-06 12:04:03,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:04:03,573 INFO L225 Difference]: With dead ends: 1152 [2025-02-06 12:04:03,573 INFO L226 Difference]: Without dead ends: 1152 [2025-02-06 12:04:03,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:04:03,574 INFO L435 NwaCegarLoop]: 418 mSDtfsCounter, 1716 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 109 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:04:03,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 1105 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 587 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2025-02-06 12:04:03,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2025-02-06 12:04:03,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 938. [2025-02-06 12:04:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 713 states have (on average 1.7180925666199158) internal successors, (1225), 877 states have internal predecessors, (1225), 50 states have call successors, (50), 24 states have call predecessors, (50), 21 states have return successors, (45), 38 states have call predecessors, (45), 40 states have call successors, (45) [2025-02-06 12:04:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1320 transitions. [2025-02-06 12:04:03,615 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1320 transitions. Word has length 36 [2025-02-06 12:04:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:04:03,615 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1320 transitions. [2025-02-06 12:04:03,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-02-06 12:04:03,615 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1320 transitions. [2025-02-06 12:04:03,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-02-06 12:04:03,616 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:04:03,616 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:04:03,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 12:04:03,617 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr147REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-02-06 12:04:03,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:04:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1958399354, now seen corresponding path program 1 times [2025-02-06 12:04:03,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:04:03,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285914650] [2025-02-06 12:04:03,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:04:03,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:04:04,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 12:04:04,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 12:04:04,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:04:04,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:04:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 12:04:05,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:04:05,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285914650] [2025-02-06 12:04:05,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285914650] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:04:05,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:04:05,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:04:05,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389072094] [2025-02-06 12:04:05,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:04:05,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:04:05,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:04:05,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:04:05,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:04:05,770 INFO L87 Difference]: Start difference. First operand 938 states and 1320 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 12:04:09,801 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 []