./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/weaver/popl20-bad-counter-queue.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 387879bf92b16ead997b40b3e249348f8a6b399496756f9bc3c41b6dc3c21353 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:16:12,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:16:12,496 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:16:12,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:16:12,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:16:12,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:16:12,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:16:12,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:16:12,519 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:16:12,519 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:16:12,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:16:12,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:16:12,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:16:12,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:16:12,519 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:16:12,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:16:12,520 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:16:12,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:16:12,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:16:12,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:16:12,521 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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 387879bf92b16ead997b40b3e249348f8a6b399496756f9bc3c41b6dc3c21353 [2025-02-08 01:16:12,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:16:12,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:16:12,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:16:12,776 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:16:12,776 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:16:12,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2025-02-08 01:16:13,940 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a0db56255/a58edfce014e4868a3e02828562e28f4/FLAG8f1640334 [2025-02-08 01:16:13,958 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException: Cannot invoke "String.equalsIgnoreCase(String)" because "kindStr" is null at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-02-08 01:16:14,161 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:16:14,161 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2025-02-08 01:16:14,167 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a0db56255/a58edfce014e4868a3e02828562e28f4/FLAG8f1640334 [2025-02-08 01:16:14,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a0db56255/a58edfce014e4868a3e02828562e28f4 [2025-02-08 01:16:14,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:16:14,187 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:16:14,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:16:14,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:16:14,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:16:14,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2b65ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14, skipping insertion in model container [2025-02-08 01:16:14,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,213 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:16:14,359 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c[2142,2155] [2025-02-08 01:16:14,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:16:14,380 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:16:14,396 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c[2142,2155] [2025-02-08 01:16:14,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:16:14,418 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:16:14,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14 WrapperNode [2025-02-08 01:16:14,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:16:14,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:16:14,421 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:16:14,421 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:16:14,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,449 INFO L138 Inliner]: procedures = 23, calls = 22, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 125 [2025-02-08 01:16:14,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:16:14,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:16:14,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:16:14,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:16:14,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,476 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-08 01:16:14,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,480 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:16:14,486 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:16:14,487 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:16:14,487 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:16:14,488 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (1/1) ... [2025-02-08 01:16:14,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:16:14,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:16:14,510 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 01:16:14,512 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 01:16:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:16:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 01:16:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 01:16:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 01:16:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 01:16:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:16:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:16:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:16:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:16:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:16:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:16:14,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:16:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:16:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:16:14,532 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 01:16:14,607 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:16:14,609 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:16:14,713 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50: [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-1: ~counter~0 := ~tmp~0#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-1: havoc #t~post3#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-2: ~i~0#1 := 1 + #t~post3#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-3: #t~post3#1 := ~i~0#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-4: havoc ~tmp~0#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49: havoc #t~ret2#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-1: havoc #t~mem1#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-2: ~tmp~0#1 := #t~ret2#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-3: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret2#1 && #t~ret2#1 <= 2147483647; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-4: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-5: havoc plus_~a#1, plus_~b#1; [2025-02-08 01:16:14,715 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-6: #t~ret2#1 := plus_#res#1; [2025-02-08 01:16:14,762 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58: havoc #t~ret5#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-1: havoc #t~mem4#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-2: ~tmp~1#1 := #t~ret5#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-3: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret5#1 && #t~ret5#1 <= 2147483647; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-4: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-5: havoc minus_~a#1, minus_~b#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-6: #t~ret5#1 := minus_#res#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L59: [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L59-1: ~counter~0 := ~tmp~1#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L57-1: havoc #t~post6#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L57-2: ~i~1#1 := 1 + #t~post6#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L57-3: #t~post6#1 := ~i~1#1; [2025-02-08 01:16:14,763 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L57-4: havoc ~tmp~1#1; [2025-02-08 01:16:14,858 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:16:14,860 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:16:15,041 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:16:15,042 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:16:15,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:16:15 BoogieIcfgContainer [2025-02-08 01:16:15,042 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:16:15,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:16:15,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:16:15,047 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:16:15,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:16:14" (1/3) ... [2025-02-08 01:16:15,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605590ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:16:15, skipping insertion in model container [2025-02-08 01:16:15,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:16:14" (2/3) ... [2025-02-08 01:16:15,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605590ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:16:15, skipping insertion in model container [2025-02-08 01:16:15,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:16:15" (3/3) ... [2025-02-08 01:16:15,048 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2025-02-08 01:16:15,059 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:16:15,060 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-counter-queue.wvr.c that has 3 procedures, 20 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-02-08 01:16:15,060 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:16:15,109 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 01:16:15,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 20 transitions, 54 flow [2025-02-08 01:16:15,165 INFO L124 PetriNetUnfolderBase]: 1/18 cut-off events. [2025-02-08 01:16:15,167 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 01:16:15,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 18 events. 1/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 10. Up to 2 conditions per place. [2025-02-08 01:16:15,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 20 transitions, 54 flow [2025-02-08 01:16:15,174 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 15 transitions, 42 flow [2025-02-08 01:16:15,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:16:15,190 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;@c35ee63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:16:15,191 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-02-08 01:16:15,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:16:15,196 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2025-02-08 01:16:15,196 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 01:16:15,196 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:16:15,197 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:16:15,197 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:16:15,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:16:15,203 INFO L85 PathProgramCache]: Analyzing trace with hash -958542471, now seen corresponding path program 1 times [2025-02-08 01:16:15,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:16:15,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22725042] [2025-02-08 01:16:15,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:16:15,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:16:15,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 01:16:15,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 01:16:15,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:16:15,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:16:15,415 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 01:16:15,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:16:15,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22725042] [2025-02-08 01:16:15,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22725042] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:16:15,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:16:15,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 01:16:15,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997041807] [2025-02-08 01:16:15,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:16:15,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 01:16:15,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:16:15,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 01:16:15,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 01:16:15,446 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20 [2025-02-08 01:16:15,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:16:15,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:16:15,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20 [2025-02-08 01:16:15,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:16:15,487 INFO L124 PetriNetUnfolderBase]: 23/53 cut-off events. [2025-02-08 01:16:15,487 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-08 01:16:15,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 53 events. 23/53 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 103 event pairs, 22 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 92. Up to 53 conditions per place. [2025-02-08 01:16:15,489 INFO L140 encePairwiseOnDemand]: 18/20 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2025-02-08 01:16:15,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 64 flow [2025-02-08 01:16:15,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 01:16:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 01:16:15,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2025-02-08 01:16:15,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38333333333333336 [2025-02-08 01:16:15,499 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 42 flow. Second operand 3 states and 23 transitions. [2025-02-08 01:16:15,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 64 flow [2025-02-08 01:16:15,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 56 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 01:16:15,502 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2025-02-08 01:16:15,504 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2025-02-08 01:16:15,506 INFO L279 CegarLoopForPetriNet]: 21 programPoint places, -4 predicate places. [2025-02-08 01:16:15,506 INFO L471 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2025-02-08 01:16:15,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:16:15,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-02-08 01:16:15,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-02-08 01:16:15,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-02-08 01:16:15,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:16:15,511 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 01:16:15,516 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:16:15,516 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:16:15,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:16:15 BasicIcfg [2025-02-08 01:16:15,520 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:16:15,521 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:16:15,521 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:16:15,521 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:16:15,521 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:16:15" (3/4) ... [2025-02-08 01:16:15,523 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:16:15,525 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 01:16:15,525 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 01:16:15,528 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2025-02-08 01:16:15,528 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-08 01:16:15,528 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-08 01:16:15,528 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 01:16:15,583 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:16:15,583 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:16:15,583 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:16:15,584 INFO L158 Benchmark]: Toolchain (without parser) took 1396.81ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 91.1MB in the end (delta: 20.5MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2025-02-08 01:16:15,584 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:16:15,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.59ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 99.9MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:16:15,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.06ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 98.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:16:15,585 INFO L158 Benchmark]: Boogie Preprocessor took 33.12ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:16:15,585 INFO L158 Benchmark]: IcfgBuilder took 556.03ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 60.0MB in the end (delta: 36.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 01:16:15,585 INFO L158 Benchmark]: TraceAbstraction took 476.64ms. Allocated memory is still 142.6MB. Free memory was 59.5MB in the beginning and 97.2MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:16:15,586 INFO L158 Benchmark]: Witness Printer took 62.36ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 91.1MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:16:15,587 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.59ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 99.9MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.06ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 98.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.12ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 556.03ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 60.0MB in the end (delta: 36.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 476.64ms. Allocated memory is still 142.6MB. Free memory was 59.5MB in the beginning and 97.2MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.36ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 91.1MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 30 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 01:16:15,601 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