./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_19-nested_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_19-nested_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 e4a3fff277216174585e9d802eee36c2b619da26d56e48ed5261f2ab62942b7a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:04:23,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:04:23,287 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:04:23,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:04:23,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:04:23,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:04:23,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:04:23,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:04:23,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:04:23,332 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:04:23,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:04:23,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:04:23,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:04:23,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:04:23,334 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:04:23,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:04:23,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:04:23,334 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:04:23,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:04:23,334 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:04:23,334 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:04:23,335 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:23,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:04:23,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:04:23,336 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:04:23,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:04:23,336 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:04:23,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:04:23,336 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:04:23,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:04:23,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:04:23,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:04:23,336 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 -> e4a3fff277216174585e9d802eee36c2b619da26d56e48ed5261f2ab62942b7a [2025-02-08 14:04:23,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:04:23,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:04:23,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:04:23,670 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:04:23,670 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:04:23,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2025-02-08 14:04:25,071 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce5f5cbd6/d8f7b7881a0f4e29a82b87adf8228398/FLAG1492ded88 [2025-02-08 14:04:25,458 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:04:25,459 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2025-02-08 14:04:25,481 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce5f5cbd6/d8f7b7881a0f4e29a82b87adf8228398/FLAG1492ded88 [2025-02-08 14:04:25,498 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce5f5cbd6/d8f7b7881a0f4e29a82b87adf8228398 [2025-02-08 14:04:25,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:04:25,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:04:25,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:25,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:04:25,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:04:25,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:25" (1/1) ... [2025-02-08 14:04:25,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7d8e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:25, skipping insertion in model container [2025-02-08 14:04:25,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:25" (1/1) ... [2025-02-08 14:04:25,555 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:04:25,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:25,998 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:04:26,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:26,143 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:04:26,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26 WrapperNode [2025-02-08 14:04:26,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:26,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:26,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:04:26,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:04:26,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,194 INFO L138 Inliner]: procedures = 372, calls = 87, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 184 [2025-02-08 14:04:26,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:26,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:04:26,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:04:26,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:04:26,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,238 INFO L175 MemorySlicer]: Split 78 memory accesses to 2 slices as follows [64, 14]. 82 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60, 0]. The 11 writes are split as follows [1, 10]. [2025-02-08 14:04:26,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,252 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:04:26,259 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:04:26,259 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:04:26,259 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:04:26,260 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (1/1) ... [2025-02-08 14:04:26,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:26,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:26,298 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 14:04:26,302 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 14:04:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 14:04:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 14:04:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 14:04:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 14:04:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:04:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:04:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:04:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:04:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:04:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:04:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:04:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:04:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 14:04:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 14:04:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 14:04:26,326 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 14:04:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:04:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:04:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:04:26,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:04:26,329 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 14:04:26,481 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:04:26,484 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:04:26,847 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1242: list_add_~list#1.base, list_add_~list#1.offset := list_add_#in~list#1.base, list_add_#in~list#1.offset; [2025-02-08 14:04:26,847 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1242-1: list_add_~node#1.base, list_add_~node#1.offset := list_add_#in~node#1.base, list_add_#in~node#1.offset; [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1243: havoc list_add_#t~mem31#1.base, list_add_#t~mem31#1.offset; [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1243-1: list_add_~temp~0#1.base, list_add_~temp~0#1.offset := list_add_#t~mem31#1.base, list_add_#t~mem31#1.offset; [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1243-2: SUMMARY for call list_add_#t~mem31#1.base, list_add_#t~mem31#1.offset := read~$Pointer$#1(list_add_~list#1.base, 4 + list_add_~list#1.offset, 4); srcloc: null [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1244: SUMMARY for call write~$Pointer$#1(list_add_~node#1.base, list_add_~node#1.offset, list_add_~list#1.base, 4 + list_add_~list#1.offset, 4); srcloc: null [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1236: new_~x#1 := new_#in~x#1; [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1245: havoc list_add_#t~mem31#1.base, list_add_#t~mem31#1.offset, list_add_~node#1.base, list_add_~node#1.offset, list_add_~list#1.base, list_add_~list#1.offset, list_add_~temp~0#1.base, list_add_~temp~0#1.offset; [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1245-1: SUMMARY for call write~$Pointer$#1(list_add_~temp~0#1.base, list_add_~temp~0#1.offset, list_add_~node#1.base, 4 + list_add_~node#1.offset, 4); srcloc: null [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1237: havoc new_#t~malloc30#1.base, new_#t~malloc30#1.offset; [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1237-1: new_~p~0#1.base, new_~p~0#1.offset := new_#t~malloc30#1.base, new_#t~malloc30#1.offset; [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1237-2: SUMMARY for call new_#t~malloc30#1.base, new_#t~malloc30#1.offset := #Ultimate.allocOnHeap(8); srcloc: null [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1262-1: havoc main_#t~post42#1; [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1262-2: assume 1 + main_#t~post42#1 <= 2147483647; [2025-02-08 14:04:26,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1262-2: assume !(1 + main_#t~post42#1 <= 2147483647); [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1262-3: main_~k~0#1 := 1 + main_#t~post42#1; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1262-4: assume 1 + main_#t~post42#1 >= -2147483648; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1262-4: assume !(1 + main_#t~post42#1 >= -2147483648); [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1262-5: main_#t~post42#1 := main_~k~0#1; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1238: SUMMARY for call write~int#1(new_~x#1, new_~p~0#1.base, new_~p~0#1.offset, 4); srcloc: null [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1263: havoc main_#t~ret39#1.base, main_#t~ret39#1.offset; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1263-1: SUMMARY for call write~$Pointer$#0(main_#t~ret39#1.base, main_#t~ret39#1.offset, ~#c~0.base, ~#c~0.offset + 4 * main_~k~0#1, 4); srcloc: null [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1263-2: havoc new_#in~x#1;assume { :end_inline_new } true; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1263-3: havoc new_#t~malloc30#1.base, new_#t~malloc30#1.offset, new_~x#1, new_~p~0#1.base, new_~p~0#1.offset; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1263-4: main_#t~ret39#1.base, main_#t~ret39#1.offset := new_#res#1.base, new_#res#1.offset; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1239: new_#res#1.base, new_#res#1.offset := new_~p~0#1.base, new_~p~0#1.offset; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1239-1: SUMMARY for call write~$Pointer$#1(0, 0, new_~p~0#1.base, 4 + new_~p~0#1.offset, 4); srcloc: null [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264: havoc main_#t~mem41#1.base, main_#t~mem41#1.offset; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-1: assume { :end_inline_list_add } true;havoc main_#t~ret40#1.base, main_#t~ret40#1.offset; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-2: havoc list_add_#in~node#1.base, list_add_#in~node#1.offset, list_add_#in~list#1.base, list_add_#in~list#1.offset; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-3: havoc list_add_#t~mem31#1.base, list_add_#t~mem31#1.offset, list_add_~node#1.base, list_add_~node#1.offset, list_add_~list#1.base, list_add_~list#1.offset, list_add_~temp~0#1.base, list_add_~temp~0#1.offset; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-4: assume { :begin_inline_list_add } true;list_add_#in~node#1.base, list_add_#in~node#1.offset, list_add_#in~list#1.base, list_add_#in~list#1.offset := main_#t~ret40#1.base, main_#t~ret40#1.offset, main_#t~mem41#1.base, main_#t~mem41#1.offset; [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-5: SUMMARY for call main_#t~mem41#1.base, main_#t~mem41#1.offset := read~$Pointer$#0(~#c~0.base, ~#c~0.offset + 4 * main_~k~0#1, 4); srcloc: null [2025-02-08 14:04:26,849 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-6: havoc new_#in~x#1;assume { :end_inline_new } true; [2025-02-08 14:04:26,850 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-7: havoc new_#t~malloc30#1.base, new_#t~malloc30#1.offset, new_~x#1, new_~p~0#1.base, new_~p~0#1.offset; [2025-02-08 14:04:26,850 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-8: main_#t~ret40#1.base, main_#t~ret40#1.offset := new_#res#1.base, new_#res#1.offset; [2025-02-08 14:04:26,850 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-9: havoc new_#t~malloc30#1.base, new_#t~malloc30#1.offset, new_~x#1, new_~p~0#1.base, new_~p~0#1.offset; [2025-02-08 14:04:26,850 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-10: havoc new_#res#1.base, new_#res#1.offset; [2025-02-08 14:04:26,850 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1264-11: assume { :begin_inline_new } true;new_#in~x#1 := 2; [2025-02-08 14:04:26,914 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:04:26,915 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:04:27,254 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:04:27,255 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:04:27,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:27 BoogieIcfgContainer [2025-02-08 14:04:27,255 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:04:27,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:04:27,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:04:27,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:04:27,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:04:25" (1/3) ... [2025-02-08 14:04:27,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f102f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:27, skipping insertion in model container [2025-02-08 14:04:27,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:26" (2/3) ... [2025-02-08 14:04:27,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f102f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:27, skipping insertion in model container [2025-02-08 14:04:27,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:27" (3/3) ... [2025-02-08 14:04:27,265 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_19-nested_nr.i [2025-02-08 14:04:27,278 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:04:27,281 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_19-nested_nr.i that has 2 procedures, 21 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-02-08 14:04:27,281 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:04:27,337 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 14:04:27,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 21 transitions, 46 flow [2025-02-08 14:04:27,402 INFO L124 PetriNetUnfolderBase]: 1/20 cut-off events. [2025-02-08 14:04:27,404 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:27,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 20 events. 1/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2025-02-08 14:04:27,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 21 transitions, 46 flow [2025-02-08 14:04:27,411 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 6 places, 6 transitions, 12 flow [2025-02-08 14:04:27,424 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:04:27,437 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;@107d4271, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:04:27,437 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-02-08 14:04:27,443 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:04:27,443 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2025-02-08 14:04:27,444 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:27,444 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:27,445 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:04:27,445 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 14:04:27,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:27,450 INFO L85 PathProgramCache]: Analyzing trace with hash 414192, now seen corresponding path program 1 times [2025-02-08 14:04:27,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:27,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127634530] [2025-02-08 14:04:27,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:27,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:27,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:04:27,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:04:27,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:27,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:27,835 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 14:04:27,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:27,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127634530] [2025-02-08 14:04:27,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127634530] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:27,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:27,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:04:27,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117457798] [2025-02-08 14:04:27,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:27,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:04:27,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:27,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:04:27,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:04:27,898 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-02-08 14:04:27,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 6 places, 6 transitions, 12 flow. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 14:04:27,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:27,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-02-08 14:04:27,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:27,946 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2025-02-08 14:04:27,947 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:27,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 9 events. 1/9 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2025-02-08 14:04:27,948 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 4 selfloop transitions, 3 changer transitions 0/8 dead transitions. [2025-02-08 14:04:27,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 8 transitions, 30 flow [2025-02-08 14:04:27,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:04:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:04:27,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2025-02-08 14:04:27,959 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20238095238095238 [2025-02-08 14:04:27,960 INFO L175 Difference]: Start difference. First operand has 6 places, 6 transitions, 12 flow. Second operand 4 states and 17 transitions. [2025-02-08 14:04:27,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 8 transitions, 30 flow [2025-02-08 14:04:27,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 8 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:04:27,966 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 34 flow [2025-02-08 14:04:27,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=34, PETRI_PLACES=11, PETRI_TRANSITIONS=8} [2025-02-08 14:04:27,973 INFO L279 CegarLoopForPetriNet]: 6 programPoint places, 5 predicate places. [2025-02-08 14:04:27,973 INFO L471 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 34 flow [2025-02-08 14:04:27,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 14:04:27,974 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:27,974 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:04:27,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:04:27,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 14:04:27,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:27,975 INFO L85 PathProgramCache]: Analyzing trace with hash -545342835, now seen corresponding path program 1 times [2025-02-08 14:04:27,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:27,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65903143] [2025-02-08 14:04:27,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:27,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:27,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:04:27,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:04:27,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:27,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:28,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65903143] [2025-02-08 14:04:28,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65903143] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108156490] [2025-02-08 14:04:28,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:28,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:28,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:28,112 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 14:04:28,113 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 14:04:28,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:04:28,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:04:28,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:28,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:28,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:04:28,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:28,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:28,278 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:04:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108156490] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:28,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:04:28,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:04:28,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449283744] [2025-02-08 14:04:28,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:28,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:04:28,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:28,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:04:28,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:04:28,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-02-08 14:04:28,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 34 flow. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 14:04:28,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:28,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-02-08 14:04:28,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:28,336 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2025-02-08 14:04:28,336 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 14:04:28,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 8 events. 1/8 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 10. Up to 4 conditions per place. [2025-02-08 14:04:28,337 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 1 selfloop transitions, 5 changer transitions 0/7 dead transitions. [2025-02-08 14:04:28,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 7 transitions, 42 flow [2025-02-08 14:04:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:04:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:04:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2025-02-08 14:04:28,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.15079365079365079 [2025-02-08 14:04:28,338 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 34 flow. Second operand 6 states and 19 transitions. [2025-02-08 14:04:28,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 7 transitions, 42 flow [2025-02-08 14:04:28,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 40 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:04:28,339 INFO L231 Difference]: Finished difference. Result has 14 places, 7 transitions, 38 flow [2025-02-08 14:04:28,339 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=38, PETRI_PLACES=14, PETRI_TRANSITIONS=7} [2025-02-08 14:04:28,340 INFO L279 CegarLoopForPetriNet]: 6 programPoint places, 8 predicate places. [2025-02-08 14:04:28,340 INFO L471 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 38 flow [2025-02-08 14:04:28,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 14:04:28,340 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:28,340 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:04:28,350 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 14:04:28,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:28,541 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 14:04:28,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:28,542 INFO L85 PathProgramCache]: Analyzing trace with hash 274241665, now seen corresponding path program 1 times [2025-02-08 14:04:28,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:28,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485715902] [2025-02-08 14:04:28,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:28,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:28,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:04:28,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:04:28,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:28,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:04:28,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:28,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485715902] [2025-02-08 14:04:28,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485715902] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:28,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:28,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:04:28,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296873499] [2025-02-08 14:04:28,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:28,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:04:28,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:28,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:04:28,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:04:28,626 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-02-08 14:04:28,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 7 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 14:04:28,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:28,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-02-08 14:04:28,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:28,638 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2025-02-08 14:04:28,638 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 14:04:28,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 7 events. 1/7 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 5. Up to 4 conditions per place. [2025-02-08 14:04:28,638 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2025-02-08 14:04:28,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 6 transitions, 44 flow [2025-02-08 14:04:28,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:04:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:04:28,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2025-02-08 14:04:28,640 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.15873015873015872 [2025-02-08 14:04:28,640 INFO L175 Difference]: Start difference. First operand has 14 places, 7 transitions, 38 flow. Second operand 3 states and 10 transitions. [2025-02-08 14:04:28,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 6 transitions, 44 flow [2025-02-08 14:04:28,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 6 transitions, 26 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-02-08 14:04:28,641 INFO L231 Difference]: Finished difference. Result has 9 places, 0 transitions, 0 flow [2025-02-08 14:04:28,642 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=9, PETRI_TRANSITIONS=0} [2025-02-08 14:04:28,642 INFO L279 CegarLoopForPetriNet]: 6 programPoint places, 3 predicate places. [2025-02-08 14:04:28,642 INFO L471 AbstractCegarLoop]: Abstraction has has 9 places, 0 transitions, 0 flow [2025-02-08 14:04:28,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 14:04:28,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 3 remaining) [2025-02-08 14:04:28,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 3 remaining) [2025-02-08 14:04:28,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-02-08 14:04:28,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:04:28,647 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 14:04:28,650 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:04:28,650 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:04:28,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:04:28 BasicIcfg [2025-02-08 14:04:28,654 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:04:28,655 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:04:28,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:04:28,655 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:04:28,656 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:27" (3/4) ... [2025-02-08 14:04:28,658 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:04:28,660 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-08 14:04:28,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2025-02-08 14:04:28,666 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-02-08 14:04:28,667 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-02-08 14:04:28,667 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 14:04:28,667 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 14:04:28,667 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 14:04:28,740 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:04:28,741 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:04:28,743 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:04:28,744 INFO L158 Benchmark]: Toolchain (without parser) took 3241.33ms. Allocated memory is still 167.8MB. Free memory was 131.0MB in the beginning and 67.6MB in the end (delta: 63.3MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2025-02-08 14:04:28,744 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:28,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.70ms. Allocated memory is still 167.8MB. Free memory was 131.0MB in the beginning and 90.2MB in the end (delta: 40.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 14:04:28,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.72ms. Allocated memory is still 167.8MB. Free memory was 90.2MB in the beginning and 87.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:28,744 INFO L158 Benchmark]: Boogie Preprocessor took 63.24ms. Allocated memory is still 167.8MB. Free memory was 87.5MB in the beginning and 84.5MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:04:28,745 INFO L158 Benchmark]: IcfgBuilder took 996.13ms. Allocated memory is still 167.8MB. Free memory was 84.5MB in the beginning and 75.0MB in the end (delta: 9.5MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2025-02-08 14:04:28,745 INFO L158 Benchmark]: TraceAbstraction took 1397.17ms. Allocated memory is still 167.8MB. Free memory was 74.0MB in the beginning and 74.1MB in the end (delta: -71.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:28,745 INFO L158 Benchmark]: Witness Printer took 87.96ms. Allocated memory is still 167.8MB. Free memory was 74.1MB in the beginning and 67.6MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:04:28,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 639.70ms. Allocated memory is still 167.8MB. Free memory was 131.0MB in the beginning and 90.2MB in the end (delta: 40.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.72ms. Allocated memory is still 167.8MB. Free memory was 90.2MB in the beginning and 87.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.24ms. Allocated memory is still 167.8MB. Free memory was 87.5MB in the beginning and 84.5MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 996.13ms. Allocated memory is still 167.8MB. Free memory was 84.5MB in the beginning and 75.0MB in the end (delta: 9.5MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1397.17ms. Allocated memory is still 167.8MB. Free memory was 74.0MB in the beginning and 74.1MB in the end (delta: -71.2kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 87.96ms. Allocated memory is still 167.8MB. Free memory was 74.1MB in the beginning and 67.6MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1256]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1256]: 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 3 procedures, 28 locations, 3 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: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 5 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 0.5s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 2 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 5/7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:04:28,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE