./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_36-traces-ex-3_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 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_36-traces-ex-3_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 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:43:08,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:43:08,085 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:43:08,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:43:08,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:43:08,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:43:08,125 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:43:08,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:43:08,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:43:08,128 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:43:08,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:43:08,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:43:08,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:43:08,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:43:08,132 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:43:08,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:43:08,132 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:43:08,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:43:08,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:43:08,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:43:08,133 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:43:08,136 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:43:08,137 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:43:08,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:43:08,138 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:43:08,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:43:08,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:43:08,138 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:43:08,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:43:08,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:43:08,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:43:08,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:43:08,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:43:08,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:43:08,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:43:08,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:43:08,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:43:08,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:43:08,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:43:08,143 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:43:08,143 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:43:08,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:43:08,144 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 [2024-10-14 19:43:08,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:43:08,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:43:08,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:43:08,450 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:43:08,451 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:43:08,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2024-10-14 19:43:09,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:43:10,247 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:43:10,248 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2024-10-14 19:43:10,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2524dd20/2f759442ad73473c9115cbb77092c83f/FLAG251a712f5 [2024-10-14 19:43:10,282 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2524dd20/2f759442ad73473c9115cbb77092c83f [2024-10-14 19:43:10,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:43:10,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:43:10,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:43:10,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:43:10,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:43:10,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7e9f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10, skipping insertion in model container [2024-10-14 19:43:10,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:43:10,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:43:10,698 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:43:10,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:43:10,790 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:43:10,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10 WrapperNode [2024-10-14 19:43:10,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:43:10,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:43:10,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:43:10,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:43:10,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,841 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2024-10-14 19:43:10,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:43:10,842 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:43:10,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:43:10,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:43:10,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,856 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,876 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]. [2024-10-14 19:43:10,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:43:10,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:43:10,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:43:10,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:43:10,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (1/1) ... [2024-10-14 19:43:10,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:43:10,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:43:10,962 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) [2024-10-14 19:43:10,965 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 [2024-10-14 19:43:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 19:43:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:43:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 19:43:11,036 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 19:43:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:43:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 19:43:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 19:43:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 19:43:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:43:11,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:43:11,039 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:43:11,179 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:43:11,182 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:43:11,338 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:43:11,338 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:43:11,473 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:43:11,474 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:43:11,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:43:11 BoogieIcfgContainer [2024-10-14 19:43:11,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:43:11,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:43:11,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:43:11,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:43:11,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:43:10" (1/3) ... [2024-10-14 19:43:11,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c88b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:43:11, skipping insertion in model container [2024-10-14 19:43:11,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:43:10" (2/3) ... [2024-10-14 19:43:11,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c88b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:43:11, skipping insertion in model container [2024-10-14 19:43:11,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:43:11" (3/3) ... [2024-10-14 19:43:11,486 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2024-10-14 19:43:11,508 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:43:11,509 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 19:43:11,509 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:43:11,541 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:43:11,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 31 transitions, 66 flow [2024-10-14 19:43:11,616 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2024-10-14 19:43:11,618 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:43:11,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 30 events. 2/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2024-10-14 19:43:11,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 31 transitions, 66 flow [2024-10-14 19:43:11,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 29 transitions, 61 flow [2024-10-14 19:43:11,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:43:11,645 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;@34fa36a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:43:11,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-14 19:43:11,655 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:43:11,655 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-10-14 19:43:11,656 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:43:11,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:43:11,657 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:43:11,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-14 19:43:11,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:43:11,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1866292830, now seen corresponding path program 1 times [2024-10-14 19:43:11,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:43:11,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027258701] [2024-10-14 19:43:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:43:11,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:43:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:43:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:43:12,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:43:12,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027258701] [2024-10-14 19:43:12,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027258701] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:43:12,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:43:12,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:43:12,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395664683] [2024-10-14 19:43:12,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:43:12,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:43:12,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:43:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:43:12,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:43:12,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-10-14 19:43:12,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-10-14 19:43:12,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:43:12,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-10-14 19:43:12,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:43:12,323 INFO L124 PetriNetUnfolderBase]: 73/191 cut-off events. [2024-10-14 19:43:12,326 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:43:12,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 191 events. 73/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 737 event pairs, 32 based on Foata normal form. 12/196 useless extension candidates. Maximal degree in co-relation 353. Up to 78 conditions per place. [2024-10-14 19:43:12,333 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 28 selfloop transitions, 10 changer transitions 0/45 dead transitions. [2024-10-14 19:43:12,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 45 transitions, 169 flow [2024-10-14 19:43:12,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:43:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:43:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions. [2024-10-14 19:43:12,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5419354838709678 [2024-10-14 19:43:12,348 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 61 flow. Second operand 5 states and 84 transitions. [2024-10-14 19:43:12,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 45 transitions, 169 flow [2024-10-14 19:43:12,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 45 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:43:12,354 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 116 flow [2024-10-14 19:43:12,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-10-14 19:43:12,359 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2024-10-14 19:43:12,361 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 116 flow [2024-10-14 19:43:12,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-10-14 19:43:12,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:43:12,362 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:43:12,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:43:12,363 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-14 19:43:12,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:43:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1788605069, now seen corresponding path program 1 times [2024-10-14 19:43:12,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:43:12,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758540322] [2024-10-14 19:43:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:43:12,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:43:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:43:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:43:12,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:43:12,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758540322] [2024-10-14 19:43:12,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758540322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:43:12,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:43:12,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:43:12,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296059861] [2024-10-14 19:43:12,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:43:12,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:43:12,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:43:12,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:43:12,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:43:12,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-10-14 19:43:12,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-10-14 19:43:12,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:43:12,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-10-14 19:43:12,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:43:12,533 INFO L124 PetriNetUnfolderBase]: 65/180 cut-off events. [2024-10-14 19:43:12,533 INFO L125 PetriNetUnfolderBase]: For 88/93 co-relation queries the response was YES. [2024-10-14 19:43:12,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 180 events. 65/180 cut-off events. For 88/93 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 700 event pairs, 56 based on Foata normal form. 8/186 useless extension candidates. Maximal degree in co-relation 428. Up to 149 conditions per place. [2024-10-14 19:43:12,539 INFO L140 encePairwiseOnDemand]: 29/31 looper letters, 14 selfloop transitions, 1 changer transitions 9/31 dead transitions. [2024-10-14 19:43:12,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 31 transitions, 158 flow [2024-10-14 19:43:12,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:43:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:43:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-10-14 19:43:12,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46236559139784944 [2024-10-14 19:43:12,541 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 116 flow. Second operand 3 states and 43 transitions. [2024-10-14 19:43:12,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 31 transitions, 158 flow [2024-10-14 19:43:12,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 31 transitions, 158 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 19:43:12,548 INFO L231 Difference]: Finished difference. Result has 38 places, 22 transitions, 70 flow [2024-10-14 19:43:12,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2024-10-14 19:43:12,550 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2024-10-14 19:43:12,551 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 70 flow [2024-10-14 19:43:12,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-10-14 19:43:12,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:43:12,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:43:12,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:43:12,552 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-14 19:43:12,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:43:12,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2145287468, now seen corresponding path program 1 times [2024-10-14 19:43:12,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:43:12,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535456122] [2024-10-14 19:43:12,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:43:12,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:43:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:43:12,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:43:12,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:43:12,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535456122] [2024-10-14 19:43:12,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535456122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:43:12,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:43:12,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:43:12,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534210911] [2024-10-14 19:43:12,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:43:12,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:43:12,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:43:12,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:43:12,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:43:12,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-10-14 19:43:12,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-10-14 19:43:12,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:43:12,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-10-14 19:43:12,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:43:12,943 INFO L124 PetriNetUnfolderBase]: 22/67 cut-off events. [2024-10-14 19:43:12,944 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-14 19:43:12,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 67 events. 22/67 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 6 based on Foata normal form. 6/72 useless extension candidates. Maximal degree in co-relation 146. Up to 39 conditions per place. [2024-10-14 19:43:12,944 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2024-10-14 19:43:12,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 92 flow [2024-10-14 19:43:12,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:43:12,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 19:43:12,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions. [2024-10-14 19:43:12,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4435483870967742 [2024-10-14 19:43:12,946 INFO L175 Difference]: Start difference. First operand has 38 places, 22 transitions, 70 flow. Second operand 4 states and 55 transitions. [2024-10-14 19:43:12,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 92 flow [2024-10-14 19:43:12,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 79 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 19:43:12,947 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2024-10-14 19:43:12,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2024-10-14 19:43:12,948 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2024-10-14 19:43:12,950 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2024-10-14 19:43:12,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-10-14 19:43:12,953 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-10-14 19:43:12,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2024-10-14 19:43:12,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-14 19:43:12,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:43:12,954 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 19:43:12,958 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:43:12,958 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:43:12,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:43:12 BasicIcfg [2024-10-14 19:43:12,966 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:43:12,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:43:12,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:43:12,968 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:43:12,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:43:11" (3/4) ... [2024-10-14 19:43:12,971 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 19:43:12,974 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-14 19:43:12,979 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-10-14 19:43:12,979 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-14 19:43:12,979 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 19:43:12,979 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 19:43:13,065 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 19:43:13,066 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 19:43:13,066 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:43:13,066 INFO L158 Benchmark]: Toolchain (without parser) took 2780.90ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 86.8MB in the beginning and 133.6MB in the end (delta: -46.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:43:13,067 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 104.9MB in the end (delta: 22.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:43:13,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.35ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 65.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 19:43:13,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.17ms. Allocated memory is still 142.6MB. Free memory was 65.8MB in the beginning and 63.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:43:13,067 INFO L158 Benchmark]: Boogie Preprocessor took 57.22ms. Allocated memory is still 142.6MB. Free memory was 63.7MB in the beginning and 61.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:43:13,068 INFO L158 Benchmark]: RCFGBuilder took 574.37ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 61.7MB in the beginning and 129.4MB in the end (delta: -67.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-10-14 19:43:13,068 INFO L158 Benchmark]: TraceAbstraction took 1488.87ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 137.8MB in the end (delta: -8.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:43:13,068 INFO L158 Benchmark]: Witness Printer took 98.33ms. Allocated memory is still 180.4MB. Free memory was 137.8MB in the beginning and 133.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:43:13,070 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 104.9MB in the end (delta: 22.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.35ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 65.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.17ms. Allocated memory is still 142.6MB. Free memory was 65.8MB in the beginning and 63.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.22ms. Allocated memory is still 142.6MB. Free memory was 63.7MB in the beginning and 61.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.37ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 61.7MB in the beginning and 129.4MB in the end (delta: -67.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1488.87ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 137.8MB in the end (delta: -8.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.33ms. Allocated memory is still 180.4MB. Free memory was 137.8MB in the beginning and 133.6MB 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: 693]: 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, 41 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: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred 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, 0.6s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 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! [2024-10-14 19:43:13,106 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