./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5fb05d1d9f477ac46601c94c33a401c10a8ea916dae173fdeb0112a4de2b3b31 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:30:23,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:30:23,579 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:30:23,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:30:23,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:30:23,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:30:23,628 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:30:23,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:30:23,629 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:30:23,631 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:30:23,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:30:23,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:30:23,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:30:23,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:30:23,635 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:30:23,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:30:23,636 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:30:23,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:30:23,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:30:23,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:30:23,639 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:30:23,639 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:30:23,640 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:30:23,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:30:23,640 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:30:23,641 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:30:23,641 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:30:23,641 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:30:23,641 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:30:23,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:30:23,642 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:30:23,642 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:30:23,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:30:23,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:30:23,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:30:23,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:30:23,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:30:23,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:30:23,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:30:23,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:30:23,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:30:23,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:30:23,646 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb05d1d9f477ac46601c94c33a401c10a8ea916dae173fdeb0112a4de2b3b31 [2024-10-13 12:30:23,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:30:23,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:30:23,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:30:23,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:30:23,974 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:30:23,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i [2024-10-13 12:30:25,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:30:25,854 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:30:25,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i [2024-10-13 12:30:25,876 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71cb661a/75942e1bb51649f39cb321e669114634/FLAGd755eceb9 [2024-10-13 12:30:25,894 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71cb661a/75942e1bb51649f39cb321e669114634 [2024-10-13 12:30:25,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:30:25,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:30:25,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:30:25,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:30:25,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:30:25,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:30:25" (1/1) ... [2024-10-13 12:30:25,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d337e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:25, skipping insertion in model container [2024-10-13 12:30:25,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:30:25" (1/1) ... [2024-10-13 12:30:25,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:30:26,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:30:26,363 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:30:26,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:30:26,466 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:30:26,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26 WrapperNode [2024-10-13 12:30:26,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:30:26,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:30:26,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:30:26,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:30:26,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,520 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2024-10-13 12:30:26,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:30:26,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:30:26,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:30:26,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:30:26,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,535 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,555 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-10-13 12:30:26,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:30:26,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:30:26,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:30:26,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:30:26,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (1/1) ... [2024-10-13 12:30:26,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:30:26,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:30:26,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 12:30:26,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 12:30:26,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 12:30:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:30:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 12:30:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 12:30:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:30:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 12:30:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 12:30:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 12:30:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:30:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:30:26,674 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:30:26,790 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:30:26,792 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:30:26,978 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:30:26,978 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:30:27,084 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:30:27,084 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:30:27,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:30:27 BoogieIcfgContainer [2024-10-13 12:30:27,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:30:27,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:30:27,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:30:27,091 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:30:27,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:30:25" (1/3) ... [2024-10-13 12:30:27,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8be75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:30:27, skipping insertion in model container [2024-10-13 12:30:27,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:26" (2/3) ... [2024-10-13 12:30:27,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8be75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:30:27, skipping insertion in model container [2024-10-13 12:30:27,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:30:27" (3/3) ... [2024-10-13 12:30:27,095 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_37-traces-ex-4_true.i [2024-10-13 12:30:27,112 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:30:27,113 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 12:30:27,113 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:30:27,188 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 12:30:27,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 35 transitions, 74 flow [2024-10-13 12:30:27,280 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-10-13 12:30:27,281 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:30:27,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 2/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-10-13 12:30:27,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 35 transitions, 74 flow [2024-10-13 12:30:27,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 33 transitions, 69 flow [2024-10-13 12:30:27,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:30:27,316 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ffd8e3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:30:27,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-13 12:30:27,326 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:30:27,326 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2024-10-13 12:30:27,326 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:30:27,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:30:27,327 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:30:27,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-13 12:30:27,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:30:27,333 INFO L85 PathProgramCache]: Analyzing trace with hash -151630798, now seen corresponding path program 1 times [2024-10-13 12:30:27,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:30:27,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803538648] [2024-10-13 12:30:27,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:30:27,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:30:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:30:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:30:27,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:30:27,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803538648] [2024-10-13 12:30:27,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803538648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:30:27,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:30:27,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:30:27,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431027480] [2024-10-13 12:30:27,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:30:27,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:30:27,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:30:27,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:30:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:30:27,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-10-13 12:30:27,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-10-13 12:30:27,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:30:27,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-10-13 12:30:27,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:30:27,970 INFO L124 PetriNetUnfolderBase]: 93/248 cut-off events. [2024-10-13 12:30:27,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:30:27,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 248 events. 93/248 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1038 event pairs, 46 based on Foata normal form. 14/252 useless extension candidates. Maximal degree in co-relation 452. Up to 111 conditions per place. [2024-10-13 12:30:27,975 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 32 selfloop transitions, 10 changer transitions 0/51 dead transitions. [2024-10-13 12:30:27,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 51 transitions, 189 flow [2024-10-13 12:30:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:30:27,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:30:27,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 98 transitions. [2024-10-13 12:30:27,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.56 [2024-10-13 12:30:27,990 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 69 flow. Second operand 5 states and 98 transitions. [2024-10-13 12:30:27,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 51 transitions, 189 flow [2024-10-13 12:30:27,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:30:28,001 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 124 flow [2024-10-13 12:30:28,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=124, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-10-13 12:30:28,007 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-10-13 12:30:28,008 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 124 flow [2024-10-13 12:30:28,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-10-13 12:30:28,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:30:28,009 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:30:28,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:30:28,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-13 12:30:28,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:30:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1270689091, now seen corresponding path program 1 times [2024-10-13 12:30:28,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:30:28,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506739726] [2024-10-13 12:30:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:30:28,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:30:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:30:28,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:30:28,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:30:28,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506739726] [2024-10-13 12:30:28,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506739726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:30:28,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:30:28,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:30:28,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752895720] [2024-10-13 12:30:28,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:30:28,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:30:28,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:30:28,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:30:28,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:30:28,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-10-13 12:30:28,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-10-13 12:30:28,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:30:28,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-10-13 12:30:28,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:30:28,166 INFO L124 PetriNetUnfolderBase]: 82/232 cut-off events. [2024-10-13 12:30:28,166 INFO L125 PetriNetUnfolderBase]: For 102/108 co-relation queries the response was YES. [2024-10-13 12:30:28,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 232 events. 82/232 cut-off events. For 102/108 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 994 event pairs, 73 based on Foata normal form. 10/238 useless extension candidates. Maximal degree in co-relation 529. Up to 186 conditions per place. [2024-10-13 12:30:28,169 INFO L140 encePairwiseOnDemand]: 33/35 looper letters, 15 selfloop transitions, 1 changer transitions 11/35 dead transitions. [2024-10-13 12:30:28,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 170 flow [2024-10-13 12:30:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:30:28,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:30:28,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2024-10-13 12:30:28,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2024-10-13 12:30:28,171 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 124 flow. Second operand 3 states and 51 transitions. [2024-10-13 12:30:28,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 170 flow [2024-10-13 12:30:28,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 35 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 12:30:28,176 INFO L231 Difference]: Finished difference. Result has 42 places, 24 transitions, 74 flow [2024-10-13 12:30:28,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=24} [2024-10-13 12:30:28,177 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-10-13 12:30:28,177 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 24 transitions, 74 flow [2024-10-13 12:30:28,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-10-13 12:30:28,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:30:28,181 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:30:28,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:30:28,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-13 12:30:28,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:30:28,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2080548243, now seen corresponding path program 1 times [2024-10-13 12:30:28,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:30:28,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237091022] [2024-10-13 12:30:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:30:28,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:30:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:30:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:30:28,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:30:28,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237091022] [2024-10-13 12:30:28,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237091022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:30:28,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:30:28,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:30:28,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587951920] [2024-10-13 12:30:28,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:30:28,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:30:28,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:30:28,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:30:28,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:30:28,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-10-13 12:30:28,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 24 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-10-13 12:30:28,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:30:28,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-10-13 12:30:28,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:30:28,527 INFO L124 PetriNetUnfolderBase]: 11/48 cut-off events. [2024-10-13 12:30:28,528 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 12:30:28,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 48 events. 11/48 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 2 based on Foata normal form. 9/56 useless extension candidates. Maximal degree in co-relation 99. Up to 29 conditions per place. [2024-10-13 12:30:28,529 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2024-10-13 12:30:28,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 21 transitions, 90 flow [2024-10-13 12:30:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:30:28,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:30:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2024-10-13 12:30:28,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2024-10-13 12:30:28,532 INFO L175 Difference]: Start difference. First operand has 42 places, 24 transitions, 74 flow. Second operand 4 states and 62 transitions. [2024-10-13 12:30:28,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 21 transitions, 90 flow [2024-10-13 12:30:28,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 77 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 12:30:28,534 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2024-10-13 12:30:28,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2024-10-13 12:30:28,536 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -7 predicate places. [2024-10-13 12:30:28,536 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2024-10-13 12:30:28,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-10-13 12:30:28,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-10-13 12:30:28,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2024-10-13 12:30:28,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-13 12:30:28,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:30:28,544 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-13 12:30:28,549 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 12:30:28,549 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 12:30:28,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:30:28 BasicIcfg [2024-10-13 12:30:28,557 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 12:30:28,559 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 12:30:28,560 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 12:30:28,560 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 12:30:28,561 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:30:27" (3/4) ... [2024-10-13 12:30:28,563 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 12:30:28,567 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-13 12:30:28,571 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-10-13 12:30:28,572 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-13 12:30:28,573 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 12:30:28,573 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 12:30:28,666 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 12:30:28,666 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 12:30:28,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 12:30:28,670 INFO L158 Benchmark]: Toolchain (without parser) took 2771.35ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 97.0MB in the beginning and 163.4MB in the end (delta: -66.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:30:28,674 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 151.0MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:30:28,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.76ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 74.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 12:30:28,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.58ms. Allocated memory is still 151.0MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:30:28,675 INFO L158 Benchmark]: Boogie Preprocessor took 53.81ms. Allocated memory is still 151.0MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:30:28,675 INFO L158 Benchmark]: RCFGBuilder took 508.01ms. Allocated memory is still 151.0MB. Free memory was 70.3MB in the beginning and 45.8MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 12:30:28,676 INFO L158 Benchmark]: TraceAbstraction took 1470.42ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 45.2MB in the beginning and 167.6MB in the end (delta: -122.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:30:28,676 INFO L158 Benchmark]: Witness Printer took 109.31ms. Allocated memory is still 209.7MB. Free memory was 167.6MB in the beginning and 163.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 12:30:28,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 151.0MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 563.76ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 74.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.58ms. Allocated memory is still 151.0MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.81ms. Allocated memory is still 151.0MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.01ms. Allocated memory is still 151.0MB. Free memory was 70.3MB in the beginning and 45.8MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1470.42ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 45.2MB in the beginning and 167.6MB in the end (delta: -122.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 109.31ms. Allocated memory is still 209.7MB. Free memory was 167.6MB in the beginning and 163.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 695]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 49 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 1 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 12:30:28,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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