./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_04-priv_multi_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_04-priv_multi_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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:29:25,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:29:25,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:29:25,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:29:25,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:29:25,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:29:25,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:29:25,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:29:25,885 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:29:25,886 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:29:25,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:29:25,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:29:25,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:29:25,888 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:29:25,890 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:29:25,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:29:25,891 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:29:25,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:29:25,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:29:25,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:29:25,892 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:29:25,893 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:29:25,893 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:29:25,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:29:25,898 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:29:25,898 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:29:25,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:29:25,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:29:25,898 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:29:25,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:29:25,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:29:25,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:29:25,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:29:25,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:29:25,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:29:25,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:29:25,900 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:29:25,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:29:25,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:29:25,901 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:29:25,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:29:25,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:29:25,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2024-10-13 12:29:26,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:29:26,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:29:26,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:29:26,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:29:26,224 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:29:26,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-10-13 12:29:27,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:29:28,131 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:29:28,132 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-10-13 12:29:28,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b0c901a1/1c2a1acc7f76437793ec02809e041e48/FLAGddaf40ebd [2024-10-13 12:29:28,166 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b0c901a1/1c2a1acc7f76437793ec02809e041e48 [2024-10-13 12:29:28,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:29:28,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:29:28,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:29:28,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:29:28,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:29:28,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:29:28" (1/1) ... [2024-10-13 12:29:28,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f98722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:28, skipping insertion in model container [2024-10-13 12:29:28,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:29:28" (1/1) ... [2024-10-13 12:29:28,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:29:28,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:29:28,860 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:29:28,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:29:29,037 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:29:29,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29 WrapperNode [2024-10-13 12:29:29,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:29:29,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:29:29,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:29:29,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:29:29,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,148 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 104 [2024-10-13 12:29:29,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:29:29,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:29:29,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:29:29,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:29:29,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,188 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,221 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 12:29:29,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,303 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:29:29,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:29:29,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:29:29,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:29:29,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (1/1) ... [2024-10-13 12:29:29,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:29:29,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:29:29,377 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 12:29:29,385 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 12:29:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2024-10-13 12:29:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2024-10-13 12:29:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 12:29:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 12:29:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:29:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2024-10-13 12:29:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2024-10-13 12:29:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure process [2024-10-13 12:29:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2024-10-13 12:29:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:29:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 12:29:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 12:29:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:29:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:29:29,448 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 12:29:29,671 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:29:29,673 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:29:29,873 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:29:29,873 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:29:30,027 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:29:30,028 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-13 12:29:30,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:29:30 BoogieIcfgContainer [2024-10-13 12:29:30,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:29:30,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:29:30,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:29:30,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:29:30,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:29:28" (1/3) ... [2024-10-13 12:29:30,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62de940a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:29:30, skipping insertion in model container [2024-10-13 12:29:30,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:29" (2/3) ... [2024-10-13 12:29:30,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62de940a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:29:30, skipping insertion in model container [2024-10-13 12:29:30,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:29:30" (3/3) ... [2024-10-13 12:29:30,039 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2024-10-13 12:29:30,055 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:29:30,056 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-13 12:29:30,056 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:29:30,112 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 12:29:30,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 71 transitions, 154 flow [2024-10-13 12:29:30,183 INFO L124 PetriNetUnfolderBase]: 10/68 cut-off events. [2024-10-13 12:29:30,183 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:29:30,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 10/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 179 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2024-10-13 12:29:30,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 71 transitions, 154 flow [2024-10-13 12:29:30,192 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 68 transitions, 145 flow [2024-10-13 12:29:30,203 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:29:30,209 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;@5d8dff2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:29:30,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-13 12:29:30,269 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:29:30,269 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-10-13 12:29:30,270 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:29:30,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:29:30,272 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:29:30,277 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 12:29:30,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:29:30,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1679968931, now seen corresponding path program 1 times [2024-10-13 12:29:30,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:29:30,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063457041] [2024-10-13 12:29:30,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:29:30,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:29:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:29:30,725 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 12:29:30,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:29:30,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063457041] [2024-10-13 12:29:30,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063457041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:29:30,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:29:30,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:29:30,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553791427] [2024-10-13 12:29:30,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:29:30,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:29:30,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:29:30,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:29:30,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:29:30,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-10-13 12:29:30,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 12:29:30,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:29:30,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-10-13 12:29:30,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:29:35,769 INFO L124 PetriNetUnfolderBase]: 24233/38219 cut-off events. [2024-10-13 12:29:35,770 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-10-13 12:29:35,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70604 conditions, 38219 events. 24233/38219 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 1025. Compared 294220 event pairs, 12107 based on Foata normal form. 6134/44176 useless extension candidates. Maximal degree in co-relation 70593. Up to 18819 conditions per place. [2024-10-13 12:29:36,128 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 67 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-10-13 12:29:36,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 90 transitions, 327 flow [2024-10-13 12:29:36,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:29:36,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:29:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2024-10-13 12:29:36,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7230046948356808 [2024-10-13 12:29:36,145 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 145 flow. Second operand 3 states and 154 transitions. [2024-10-13 12:29:36,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 90 transitions, 327 flow [2024-10-13 12:29:36,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 90 transitions, 324 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 12:29:36,161 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 138 flow [2024-10-13 12:29:36,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2024-10-13 12:29:36,169 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -4 predicate places. [2024-10-13 12:29:36,170 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 138 flow [2024-10-13 12:29:36,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 12:29:36,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:29:36,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:29:36,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:29:36,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 12:29:36,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:29:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1330950958, now seen corresponding path program 1 times [2024-10-13 12:29:36,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:29:36,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715402735] [2024-10-13 12:29:36,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:29:36,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:29:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:29:36,664 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 12:29:36,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:29:36,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715402735] [2024-10-13 12:29:36,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715402735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:29:36,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:29:36,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:29:36,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763830565] [2024-10-13 12:29:36,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:29:36,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:29:36,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:29:36,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:29:36,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:29:36,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 71 [2024-10-13 12:29:36,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 12:29:36,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:29:36,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 71 [2024-10-13 12:29:36,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:29:41,027 INFO L124 PetriNetUnfolderBase]: 34593/49859 cut-off events. [2024-10-13 12:29:41,028 INFO L125 PetriNetUnfolderBase]: For 2760/2760 co-relation queries the response was YES. [2024-10-13 12:29:41,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98009 conditions, 49859 events. 34593/49859 cut-off events. For 2760/2760 co-relation queries the response was YES. Maximal size of possible extension queue 1290. Compared 350958 event pairs, 5721 based on Foata normal form. 0/48880 useless extension candidates. Maximal degree in co-relation 97999. Up to 32317 conditions per place. [2024-10-13 12:29:41,455 INFO L140 encePairwiseOnDemand]: 64/71 looper letters, 101 selfloop transitions, 9 changer transitions 0/130 dead transitions. [2024-10-13 12:29:41,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 130 transitions, 510 flow [2024-10-13 12:29:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:29:41,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:29:41,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 225 transitions. [2024-10-13 12:29:41,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6338028169014085 [2024-10-13 12:29:41,458 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 138 flow. Second operand 5 states and 225 transitions. [2024-10-13 12:29:41,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 130 transitions, 510 flow [2024-10-13 12:29:41,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 130 transitions, 506 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:29:41,467 INFO L231 Difference]: Finished difference. Result has 71 places, 68 transitions, 202 flow [2024-10-13 12:29:41,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=202, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2024-10-13 12:29:41,468 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 3 predicate places. [2024-10-13 12:29:41,468 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 202 flow [2024-10-13 12:29:41,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 12:29:41,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:29:41,469 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:29:41,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:29:41,469 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting disposeErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 12:29:41,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:29:41,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1760801301, now seen corresponding path program 1 times [2024-10-13 12:29:41,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:29:41,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527610519] [2024-10-13 12:29:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:29:41,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:29:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:29:41,647 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 12:29:41,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:29:41,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527610519] [2024-10-13 12:29:41,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527610519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:29:41,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:29:41,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:29:41,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254137845] [2024-10-13 12:29:41,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:29:41,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:29:41,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:29:41,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:29:41,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:29:41,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 71 [2024-10-13 12:29:41,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 12:29:41,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:29:41,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 71 [2024-10-13 12:29:41,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:29:51,535 INFO L124 PetriNetUnfolderBase]: 72962/108063 cut-off events. [2024-10-13 12:29:51,536 INFO L125 PetriNetUnfolderBase]: For 48328/50341 co-relation queries the response was YES. [2024-10-13 12:29:51,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238902 conditions, 108063 events. 72962/108063 cut-off events. For 48328/50341 co-relation queries the response was YES. Maximal size of possible extension queue 2456. Compared 831957 event pairs, 10656 based on Foata normal form. 0/104567 useless extension candidates. Maximal degree in co-relation 238887. Up to 37321 conditions per place. [2024-10-13 12:29:53,081 INFO L140 encePairwiseOnDemand]: 63/71 looper letters, 214 selfloop transitions, 12 changer transitions 0/246 dead transitions. [2024-10-13 12:29:53,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 246 transitions, 1216 flow [2024-10-13 12:29:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:29:53,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 12:29:53,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 381 transitions. [2024-10-13 12:29:53,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.670774647887324 [2024-10-13 12:29:53,088 INFO L175 Difference]: Start difference. First operand has 71 places, 68 transitions, 202 flow. Second operand 8 states and 381 transitions. [2024-10-13 12:29:53,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 246 transitions, 1216 flow [2024-10-13 12:29:53,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 246 transitions, 1216 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 12:29:53,155 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 290 flow [2024-10-13 12:29:53,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=290, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2024-10-13 12:29:53,156 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 16 predicate places. [2024-10-13 12:29:53,156 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 290 flow [2024-10-13 12:29:53,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 12:29:53,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:29:53,157 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:29:53,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:29:53,157 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 12:29:53,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:29:53,158 INFO L85 PathProgramCache]: Analyzing trace with hash -717110018, now seen corresponding path program 1 times [2024-10-13 12:29:53,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:29:53,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392116673] [2024-10-13 12:29:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:29:53,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:29:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:29:53,251 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 12:29:53,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:29:53,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392116673] [2024-10-13 12:29:53,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392116673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:29:53,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:29:53,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:29:53,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136016715] [2024-10-13 12:29:53,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:29:53,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:29:53,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:29:53,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:29:53,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:29:53,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-10-13 12:29:53,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 12:29:53,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:29:53,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-10-13 12:29:53,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:30:11,282 INFO L124 PetriNetUnfolderBase]: 101721/161244 cut-off events. [2024-10-13 12:30:11,282 INFO L125 PetriNetUnfolderBase]: For 125020/129436 co-relation queries the response was YES. [2024-10-13 12:30:12,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402171 conditions, 161244 events. 101721/161244 cut-off events. For 125020/129436 co-relation queries the response was YES. Maximal size of possible extension queue 3799. Compared 1428676 event pairs, 23893 based on Foata normal form. 6602/166343 useless extension candidates. Maximal degree in co-relation 402148. Up to 81595 conditions per place. [2024-10-13 12:30:12,990 INFO L140 encePairwiseOnDemand]: 60/71 looper letters, 94 selfloop transitions, 11 changer transitions 0/128 dead transitions. [2024-10-13 12:30:12,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 128 transitions, 709 flow [2024-10-13 12:30:12,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:30:12,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:30:12,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2024-10-13 12:30:12,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6948356807511737 [2024-10-13 12:30:12,992 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 290 flow. Second operand 3 states and 148 transitions. [2024-10-13 12:30:12,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 128 transitions, 709 flow [2024-10-13 12:30:15,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 128 transitions, 709 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 12:30:15,372 INFO L231 Difference]: Finished difference. Result has 87 places, 86 transitions, 355 flow [2024-10-13 12:30:15,372 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=87, PETRI_TRANSITIONS=86} [2024-10-13 12:30:15,374 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 19 predicate places. [2024-10-13 12:30:15,375 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 86 transitions, 355 flow [2024-10-13 12:30:15,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 12:30:15,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:30:15,376 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:30:15,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:30:15,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 12:30:15,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:30:15,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1791978115, now seen corresponding path program 1 times [2024-10-13 12:30:15,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:30:15,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847983067] [2024-10-13 12:30:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:30:15,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:30:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:30:15,585 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 12:30:15,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:30:15,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847983067] [2024-10-13 12:30:15,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847983067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:30:15,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:30:15,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:30:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641938510] [2024-10-13 12:30:15,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:30:15,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:30:15,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:30:15,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:30:15,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:30:15,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 71 [2024-10-13 12:30:15,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 86 transitions, 355 flow. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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 12:30:15,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:30:15,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 71 [2024-10-13 12:30:15,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand