./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d 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/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:04:25,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:04:25,122 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:04:25,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:04:25,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:04:25,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:04:25,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:04:25,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:04:25,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:04:25,162 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:04:25,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:04:25,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:04:25,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:04:25,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:04:25,163 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:04:25,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:04:25,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:04:25,163 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:04:25,164 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:04:25,165 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:04:25,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:04:25,165 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:04:25,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:04:25,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:25,165 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:04:25,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:04:25,165 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:04:25,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:04:25,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:04:25,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:04:25,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:04:25,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:04:25,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:04:25,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:04:25,166 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 ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2025-02-08 14:04:25,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:04:25,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:04:25,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:04:25,389 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:04:25,389 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:04:25,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2025-02-08 14:04:26,608 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/596d40ecf/6c1a09acf6914906b994820e5cedf121/FLAGeb7e98e3e [2025-02-08 14:04:26,940 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:04:26,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2025-02-08 14:04:26,957 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/596d40ecf/6c1a09acf6914906b994820e5cedf121/FLAGeb7e98e3e [2025-02-08 14:04:26,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/596d40ecf/6c1a09acf6914906b994820e5cedf121 [2025-02-08 14:04:26,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:04:26,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:04:26,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:26,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:04:26,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:04:26,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdddd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26, skipping insertion in model container [2025-02-08 14:04:26,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:27,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:04:27,253 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 14:04:27,254 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 14:04:27,254 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 14:04:27,254 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 14:04:27,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:27,296 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:04:27,328 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 14:04:27,328 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 14:04:27,329 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 14:04:27,329 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 14:04:27,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:27,387 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:04:27,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27 WrapperNode [2025-02-08 14:04:27,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:27,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:27,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:04:27,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:04:27,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,438 INFO L138 Inliner]: procedures = 273, calls = 95, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 179 [2025-02-08 14:04:27,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:27,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:04:27,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:04:27,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:04:27,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,493 INFO L175 MemorySlicer]: Split 84 memory accesses to 1 slices as follows [84]. 100 percent of accesses are in the largest equivalence class. The 70 initializations are split as follows [70]. The 10 writes are split as follows [10]. [2025-02-08 14:04:27,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,504 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:04:27,521 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:04:27,522 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:04:27,522 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:04:27,523 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (1/1) ... [2025-02-08 14:04:27,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:27,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:27,561 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) [2025-02-08 14:04:27,565 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 [2025-02-08 14:04:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-08 14:04:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-08 14:04:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 14:04:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 14:04:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:04:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:04:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:04:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:04:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:04:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:04:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 14:04:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:04:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:04:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:04:27,601 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:04:27,723 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:04:27,726 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1018: SUMMARY for call write~$Pointer$#0(list_add_~next~0#1.base, list_add_~next~0#1.offset, list_add_~new#1.base, list_add_~new#1.offset, 4); srcloc: null [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1019: SUMMARY for call write~$Pointer$#0(list_add_~head#1.base, list_add_~head#1.offset, list_add_~new#1.base, 4 + list_add_~new#1.offset, 4); srcloc: null [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1020: havoc list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset, list_add_~new#1.base, list_add_~new#1.offset, list_add_~head#1.base, list_add_~head#1.offset, list_add_~next~0#1.base, list_add_~next~0#1.offset; [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1020-1: SUMMARY for call write~$Pointer$#0(list_add_~new#1.base, list_add_~new#1.offset, list_add_~head#1.base, list_add_~head#1.offset, 4); srcloc: null [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-1: havoc main_#t~post13#1; [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-2: assume 1 + main_#t~post13#1 <= 2147483647; [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-2: assume !(1 + main_#t~post13#1 <= 2147483647); [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-3: main_~j~1#1 := 1 + main_#t~post13#1; [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-4: assume 1 + main_#t~post13#1 >= -2147483648; [2025-02-08 14:04:28,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-4: assume !(1 + main_#t~post13#1 >= -2147483648); [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-5: assume { :end_inline_list_add } true;main_#t~post13#1 := main_~j~1#1; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-6: havoc list_add_#in~new#1.base, list_add_#in~new#1.offset, list_add_#in~head#1.base, list_add_#in~head#1.offset; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-7: havoc list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset, list_add_~new#1.base, list_add_~new#1.offset, list_add_~head#1.base, list_add_~head#1.offset, list_add_~next~0#1.base, list_add_~next~0#1.offset; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-8: assume { :end_inline_new } true;assume { :begin_inline_list_add } true;list_add_#in~new#1.base, list_add_#in~new#1.offset, list_add_#in~head#1.base, list_add_#in~head#1.offset := main_#t~ret12#1.base, 4 + main_#t~ret12#1.offset, ~#c~0.base, ~#c~0.offset + 8 * main_~i~0#1; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-9: havoc new_#in~x#1; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-10: havoc new_#t~malloc2#1.base, new_#t~malloc2#1.offset, new_~x#1, new_~p~0#1.base, new_~p~0#1.offset; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-11: main_#t~ret12#1.base, main_#t~ret12#1.offset := new_#res#1.base, new_#res#1.offset; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1015: list_add_~head#1.base, list_add_~head#1.offset := list_add_#in~head#1.base, list_add_#in~head#1.offset; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1015-1: list_add_~new#1.base, list_add_~new#1.offset := list_add_#in~new#1.base, list_add_#in~new#1.offset; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1016: havoc list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1016-1: list_add_~next~0#1.base, list_add_~next~0#1.offset := list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset; [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1016-2: SUMMARY for call list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset := read~$Pointer$#0(list_add_~head#1.base, list_add_~head#1.offset, 4); srcloc: null [2025-02-08 14:04:28,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1017: SUMMARY for call write~$Pointer$#0(list_add_~new#1.base, list_add_~new#1.offset, list_add_~next~0#1.base, 4 + list_add_~next~0#1.offset, 4); srcloc: null [2025-02-08 14:04:28,039 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:04:28,039 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:04:28,403 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:04:28,403 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:04:28,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:28 BoogieIcfgContainer [2025-02-08 14:04:28,403 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:04:28,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:04:28,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:04:28,407 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:04:28,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:04:26" (1/3) ... [2025-02-08 14:04:28,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c419fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:28, skipping insertion in model container [2025-02-08 14:04:28,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:27" (2/3) ... [2025-02-08 14:04:28,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c419fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:28, skipping insertion in model container [2025-02-08 14:04:28,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:28" (3/3) ... [2025-02-08 14:04:28,409 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2025-02-08 14:04:28,419 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:04:28,421 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_21-arrayloop2_nr.i that has 2 procedures, 33 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2025-02-08 14:04:28,421 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:04:28,458 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 14:04:28,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 53 transitions, 114 flow [2025-02-08 14:04:28,516 INFO L124 PetriNetUnfolderBase]: 5/51 cut-off events. [2025-02-08 14:04:28,518 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:28,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 51 events. 5/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 128 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2025-02-08 14:04:28,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 53 transitions, 114 flow [2025-02-08 14:04:28,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 50 transitions, 106 flow [2025-02-08 14:04:28,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:04:28,536 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d4f17ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:04:28,536 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-02-08 14:04:28,540 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:04:28,540 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2025-02-08 14:04:28,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:28,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:28,541 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-08 14:04:28,541 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:04:28,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:28,545 INFO L85 PathProgramCache]: Analyzing trace with hash 13004599, now seen corresponding path program 1 times [2025-02-08 14:04:28,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:28,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657738360] [2025-02-08 14:04:28,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:28,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:28,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:04:28,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:04:28,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:28,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 14:04:28,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907676561] [2025-02-08 14:04:28,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:28,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:28,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:28,658 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) [2025-02-08 14:04:28,659 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 [2025-02-08 14:04:28,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:04:28,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:04:28,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:28,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:28,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 14:04:28,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:28,820 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:04:28,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:28,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657738360] [2025-02-08 14:04:28,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 14:04:28,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907676561] [2025-02-08 14:04:28,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907676561] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:28,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:28,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:04:28,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400100014] [2025-02-08 14:04:28,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:28,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:04:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:28,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:04:28,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:04:28,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 53 [2025-02-08 14:04:28,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2025-02-08 14:04:28,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:28,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 53 [2025-02-08 14:04:28,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:28,981 INFO L124 PetriNetUnfolderBase]: 244/606 cut-off events. [2025-02-08 14:04:28,981 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 14:04:28,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 606 events. 244/606 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3294 event pairs, 175 based on Foata normal form. 2/540 useless extension candidates. Maximal degree in co-relation 987. Up to 395 conditions per place. [2025-02-08 14:04:28,987 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 30 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2025-02-08 14:04:28,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 176 flow [2025-02-08 14:04:28,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:04:28,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:04:29,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2025-02-08 14:04:29,004 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6540880503144654 [2025-02-08 14:04:29,009 INFO L175 Difference]: Start difference. First operand has 52 places, 50 transitions, 106 flow. Second operand 3 states and 104 transitions. [2025-02-08 14:04:29,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 176 flow [2025-02-08 14:04:29,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:29,018 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 120 flow [2025-02-08 14:04:29,024 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2025-02-08 14:04:29,027 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2025-02-08 14:04:29,029 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 120 flow [2025-02-08 14:04:29,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2025-02-08 14:04:29,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:29,030 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-08 14:04:29,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 14:04:29,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 14:04:29,231 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:04:29,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:29,233 INFO L85 PathProgramCache]: Analyzing trace with hash 13004625, now seen corresponding path program 1 times [2025-02-08 14:04:29,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:29,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520736487] [2025-02-08 14:04:29,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:29,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:29,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:04:29,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:04:29,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:29,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:29,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:29,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520736487] [2025-02-08 14:04:29,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520736487] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:29,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:29,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:04:29,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784847472] [2025-02-08 14:04:29,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:29,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:04:29,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:29,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:04:29,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:04:29,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 53 [2025-02-08 14:04:29,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2025-02-08 14:04:29,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:29,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 53 [2025-02-08 14:04:29,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:29,399 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2025-02-08 14:04:29,400 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:29,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11 conditions, 4 events. 0/4 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/5 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-02-08 14:04:29,400 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 0 selfloop transitions, 0 changer transitions 4/4 dead transitions. [2025-02-08 14:04:29,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 4 transitions, 15 flow [2025-02-08 14:04:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:04:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:04:29,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-02-08 14:04:29,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4528301886792453 [2025-02-08 14:04:29,401 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 120 flow. Second operand 3 states and 72 transitions. [2025-02-08 14:04:29,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 4 transitions, 15 flow [2025-02-08 14:04:29,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 4 transitions, 13 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:04:29,401 INFO L231 Difference]: Finished difference. Result has 8 places, 0 transitions, 0 flow [2025-02-08 14:04:29,401 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=9, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=8, PETRI_TRANSITIONS=0} [2025-02-08 14:04:29,402 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, -44 predicate places. [2025-02-08 14:04:29,402 INFO L471 AbstractCegarLoop]: Abstraction has has 8 places, 0 transitions, 0 flow [2025-02-08 14:04:29,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2025-02-08 14:04:29,404 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2025-02-08 14:04:29,404 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2025-02-08 14:04:29,404 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-02-08 14:04:29,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-02-08 14:04:29,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-02-08 14:04:29,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-02-08 14:04:29,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-02-08 14:04:29,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-02-08 14:04:29,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:04:29,406 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 14:04:29,410 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:04:29,410 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:04:29,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:04:29 BasicIcfg [2025-02-08 14:04:29,414 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:04:29,414 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:04:29,414 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:04:29,414 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:04:29,415 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:28" (3/4) ... [2025-02-08 14:04:29,416 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:04:29,418 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f [2025-02-08 14:04:29,424 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2025-02-08 14:04:29,424 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2025-02-08 14:04:29,424 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-08 14:04:29,425 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 14:04:29,425 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 14:04:29,425 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 14:04:29,425 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 14:04:29,478 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:04:29,478 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:04:29,478 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:04:29,479 INFO L158 Benchmark]: Toolchain (without parser) took 2504.81ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 48.9MB in the end (delta: 57.5MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2025-02-08 14:04:29,479 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:29,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.55ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 75.7MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 14:04:29,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.29ms. Allocated memory is still 142.6MB. Free memory was 75.7MB in the beginning and 72.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:29,480 INFO L158 Benchmark]: Boogie Preprocessor took 70.39ms. Allocated memory is still 142.6MB. Free memory was 72.7MB in the beginning and 70.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:29,480 INFO L158 Benchmark]: IcfgBuilder took 881.90ms. Allocated memory is still 142.6MB. Free memory was 70.3MB in the beginning and 75.5MB in the end (delta: -5.2MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2025-02-08 14:04:29,480 INFO L158 Benchmark]: TraceAbstraction took 1009.13ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 55.3MB in the end (delta: 19.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2025-02-08 14:04:29,480 INFO L158 Benchmark]: Witness Printer took 64.05ms. Allocated memory is still 142.6MB. Free memory was 55.3MB in the beginning and 48.9MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:04:29,481 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.55ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 75.7MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.29ms. Allocated memory is still 142.6MB. Free memory was 75.7MB in the beginning and 72.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.39ms. Allocated memory is still 142.6MB. Free memory was 72.7MB in the beginning and 70.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 881.90ms. Allocated memory is still 142.6MB. Free memory was 70.3MB in the beginning and 75.5MB in the end (delta: -5.2MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1009.13ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 55.3MB in the end (delta: 19.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Witness Printer took 64.05ms. Allocated memory is still 142.6MB. Free memory was 55.3MB in the beginning and 48.9MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1033]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1033]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1038]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1038]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1047]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1044]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1047]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1044]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 67 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 2 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 224 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:04:29,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE