./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 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_04-list2_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 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:44:21,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:44:22,044 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:44:22,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:44:22,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:44:22,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:44:22,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:44:22,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:44:22,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:44:22,071 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:44:22,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:44:22,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:44:22,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:44:22,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:44:22,072 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:44:22,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:44:22,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:44:22,072 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:44:22,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:44:22,072 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:44:22,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:44:22,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:44:22,073 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:44:22,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:44:22,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:44:22,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:44:22,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:44:22,074 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 -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2025-01-10 06:44:22,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:44:22,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:44:22,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:44:22,400 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:44:22,401 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:44:22,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2025-01-10 06:44:23,684 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fd6d64771/da30c9170c0a4d08946ab5414ae6fbd9/FLAG06e7dbd35 [2025-01-10 06:44:24,032 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:44:24,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2025-01-10 06:44:24,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fd6d64771/da30c9170c0a4d08946ab5414ae6fbd9/FLAG06e7dbd35 [2025-01-10 06:44:24,246 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fd6d64771/da30c9170c0a4d08946ab5414ae6fbd9 [2025-01-10 06:44:24,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:44:24,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:44:24,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:44:24,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:44:24,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:44:24,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0b9450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24, skipping insertion in model container [2025-01-10 06:44:24,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:44:24,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:44:24,558 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:44:24,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:44:24,643 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:44:24,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24 WrapperNode [2025-01-10 06:44:24,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:44:24,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:44:24,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:44:24,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:44:24,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,695 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 89 [2025-01-10 06:44:24,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:44:24,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:44:24,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:44:24,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:44:24,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,712 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,730 INFO L175 MemorySlicer]: Split 30 memory accesses to 3 slices as follows [5, 5, 20]. 67 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [5, 5, 0]. The 12 writes are split as follows [0, 0, 12]. [2025-01-10 06:44:24,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,741 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:44:24,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:44:24,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:44:24,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:44:24,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (1/1) ... [2025-01-10 06:44:24,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:44:24,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:44:24,797 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) [2025-01-10 06:44:24,804 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 [2025-01-10 06:44:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 06:44:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 06:44:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 06:44:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:44:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:44:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 06:44:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 06:44:24,823 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 06:44:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:44:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:44:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 06:44:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:44:24,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:44:24,825 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:44:24,939 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:44:24,941 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:44:25,157 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:44:25,158 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:44:25,389 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:44:25,390 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:44:25,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:44:25 BoogieIcfgContainer [2025-01-10 06:44:25,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:44:25,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:44:25,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:44:25,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:44:25,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:44:24" (1/3) ... [2025-01-10 06:44:25,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab97ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:44:25, skipping insertion in model container [2025-01-10 06:44:25,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:24" (2/3) ... [2025-01-10 06:44:25,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab97ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:44:25, skipping insertion in model container [2025-01-10 06:44:25,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:44:25" (3/3) ... [2025-01-10 06:44:25,399 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2025-01-10 06:44:25,412 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:44:25,414 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_04-list2_nr.i that has 2 procedures, 30 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-10 06:44:25,414 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:44:25,454 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:44:25,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 62 flow [2025-01-10 06:44:25,507 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-01-10 06:44:25,509 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:44:25,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-01-10 06:44:25,511 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 62 flow [2025-01-10 06:44:25,513 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 25 transitions, 53 flow [2025-01-10 06:44:25,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:44:25,531 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;@2f95dcf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:44:25,531 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-01-10 06:44:25,538 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:44:25,538 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-01-10 06:44:25,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:44:25,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:25,539 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:44:25,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:44:25,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1105251450, now seen corresponding path program 1 times [2025-01-10 06:44:25,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:25,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405783808] [2025-01-10 06:44:25,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:25,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:25,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:44:25,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:44:25,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:25,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:26,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:26,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405783808] [2025-01-10 06:44:26,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405783808] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:26,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:26,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:44:26,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233253394] [2025-01-10 06:44:26,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:26,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:44:26,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:26,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:44:26,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:44:26,566 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 06:44:26,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-01-10 06:44:26,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:26,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 06:44:26,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:26,746 INFO L124 PetriNetUnfolderBase]: 48/160 cut-off events. [2025-01-10 06:44:26,747 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:44:26,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 160 events. 48/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 616 event pairs, 8 based on Foata normal form. 9/160 useless extension candidates. Maximal degree in co-relation 268. Up to 69 conditions per place. [2025-01-10 06:44:26,751 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 29 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2025-01-10 06:44:26,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 39 transitions, 145 flow [2025-01-10 06:44:26,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:44:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:44:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2025-01-10 06:44:26,761 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2025-01-10 06:44:26,762 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 53 flow. Second operand 4 states and 66 transitions. [2025-01-10 06:44:26,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 39 transitions, 145 flow [2025-01-10 06:44:26,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 39 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:44:26,768 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 54 flow [2025-01-10 06:44:26,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2025-01-10 06:44:26,772 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2025-01-10 06:44:26,772 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 54 flow [2025-01-10 06:44:26,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-01-10 06:44:26,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:26,773 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:26,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:44:26,773 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:44:26,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:26,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1524556734, now seen corresponding path program 1 times [2025-01-10 06:44:26,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:26,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191722350] [2025-01-10 06:44:26,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:26,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:26,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:44:26,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:44:26,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:26,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:27,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:27,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:27,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191722350] [2025-01-10 06:44:27,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191722350] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:27,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:27,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:44:27,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794660119] [2025-01-10 06:44:27,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:27,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:44:27,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:27,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:44:27,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:44:27,742 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-01-10 06:44:27,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 54 flow. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2025-01-10 06:44:27,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:27,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-01-10 06:44:27,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:27,958 INFO L124 PetriNetUnfolderBase]: 48/142 cut-off events. [2025-01-10 06:44:27,958 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-01-10 06:44:27,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 142 events. 48/142 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 496 event pairs, 8 based on Foata normal form. 18/160 useless extension candidates. Maximal degree in co-relation 268. Up to 51 conditions per place. [2025-01-10 06:44:27,959 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2025-01-10 06:44:27,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 45 transitions, 178 flow [2025-01-10 06:44:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:44:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:44:27,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2025-01-10 06:44:27,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2025-01-10 06:44:27,960 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 54 flow. Second operand 6 states and 90 transitions. [2025-01-10 06:44:27,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 45 transitions, 178 flow [2025-01-10 06:44:27,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 45 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:44:27,961 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2025-01-10 06:44:27,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2025-01-10 06:44:27,962 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2025-01-10 06:44:27,962 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2025-01-10 06:44:27,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2025-01-10 06:44:27,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2025-01-10 06:44:27,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2025-01-10 06:44:27,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2025-01-10 06:44:27,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2025-01-10 06:44:27,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2025-01-10 06:44:27,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2025-01-10 06:44:27,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2025-01-10 06:44:27,965 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2025-01-10 06:44:27,965 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2025-01-10 06:44:27,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:44:27,965 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-10 06:44:27,968 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:44:27,968 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:44:27,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:44:27 BasicIcfg [2025-01-10 06:44:27,971 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:44:27,972 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:44:27,972 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:44:27,972 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:44:27,972 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:44:25" (3/4) ... [2025-01-10 06:44:27,973 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:44:27,975 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-01-10 06:44:27,978 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 67 nodes and edges [2025-01-10 06:44:27,978 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-01-10 06:44:27,978 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-10 06:44:28,032 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:44:28,032 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:44:28,033 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:44:28,033 INFO L158 Benchmark]: Toolchain (without parser) took 3781.39ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 105.1MB in the beginning and 98.8MB in the end (delta: 6.3MB). Peak memory consumption was 150.6MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,036 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:44:28,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.82ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 67.1MB in the end (delta: 38.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.03ms. Allocated memory is still 142.6MB. Free memory was 67.1MB in the beginning and 64.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:44:28,037 INFO L158 Benchmark]: Boogie Preprocessor took 58.00ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 62.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:44:28,037 INFO L158 Benchmark]: RCFGBuilder took 634.55ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 79.9MB in the end (delta: -17.3MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,037 INFO L158 Benchmark]: TraceAbstraction took 2579.36ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 79.2MB in the beginning and 104.3MB in the end (delta: -25.1MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,037 INFO L158 Benchmark]: Witness Printer took 60.86ms. Allocated memory is still 285.2MB. Free memory was 104.3MB in the beginning and 98.8MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.82ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 67.1MB in the end (delta: 38.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.03ms. Allocated memory is still 142.6MB. Free memory was 67.1MB in the beginning and 64.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.00ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 62.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 634.55ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 79.9MB in the end (delta: -17.3MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2579.36ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 79.2MB in the beginning and 104.3MB in the end (delta: -25.1MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. * Witness Printer took 60.86ms. Allocated memory is still 285.2MB. Free memory was 104.3MB in the beginning and 98.8MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: 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, 49 locations, 9 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: 2.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 3 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 1.7s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:44:28,051 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