./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_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 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:36:44,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:36:45,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-04-30 10:36:45,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:36:45,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:36:45,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:36:45,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:36:45,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:36:45,045 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:36:45,045 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:36:45,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:36:45,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:36:45,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:36:45,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:36:45,046 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:36:45,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:36:45,047 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:36:45,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:36:45,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:36:45,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:36:45,047 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-30 10:36:45,047 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-30 10:36:45,047 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-30 10:36:45,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:36:45,048 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:45,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:45,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:36:45,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:36:45,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:36:45,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:36:45,049 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 [2025-04-30 10:36:45,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:36:45,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:36:45,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:36:45,272 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:36:45,273 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:36:45,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2025-04-30 10:36:46,562 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ec4fd57/341805591003422d9dfa3b455d1a8f4b/FLAGf144b726f [2025-04-30 10:36:46,829 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:36:46,830 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2025-04-30 10:36:46,844 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ec4fd57/341805591003422d9dfa3b455d1a8f4b/FLAGf144b726f [2025-04-30 10:36:47,713 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ec4fd57/341805591003422d9dfa3b455d1a8f4b [2025-04-30 10:36:47,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:36:47,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:36:47,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:36:47,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:36:47,720 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:36:47,721 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:36:47" (1/1) ... [2025-04-30 10:36:47,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e69917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:47, skipping insertion in model container [2025-04-30 10:36:47,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:36:47" (1/1) ... [2025-04-30 10:36:47,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:36:48,004 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:36:48,019 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:36:48,071 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:36:48,099 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:36:48,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48 WrapperNode [2025-04-30 10:36:48,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:36:48,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:36:48,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:36:48,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:36:48,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,139 INFO L138 Inliner]: procedures = 162, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2025-04-30 10:36:48,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:36:48,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:36:48,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:36:48,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:36:48,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,160 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]. [2025-04-30 10:36:48,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,165 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:36:48,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:36:48,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:36:48,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:36:48,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (1/1) ... [2025-04-30 10:36:48,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:36:48,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:36:48,198 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) [2025-04-30 10:36:48,202 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 [2025-04-30 10:36:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:36:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:36:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:36:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:36:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:36:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:36:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-30 10:36:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:36:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:36:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:36:48,216 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:36:48,299 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:36:48,300 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:36:48,418 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:36:48,418 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:36:48,504 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:36:48,504 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:36:48,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:48 BoogieIcfgContainer [2025-04-30 10:36:48,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:36:48,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:36:48,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:36:48,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:36:48,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:36:47" (1/3) ... [2025-04-30 10:36:48,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6069f7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:36:48, skipping insertion in model container [2025-04-30 10:36:48,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:36:48" (2/3) ... [2025-04-30 10:36:48,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6069f7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:36:48, skipping insertion in model container [2025-04-30 10:36:48,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:48" (3/3) ... [2025-04-30 10:36:48,511 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2025-04-30 10:36:48,523 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:36:48,524 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_31-traces-mine-vs-mutex_true.i that has 2 procedures, 40 locations, 40 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-30 10:36:48,525 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:36:48,554 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:36:48,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 41 transitions, 89 flow [2025-04-30 10:36:48,608 INFO L116 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-04-30 10:36:48,611 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:36:48,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 2/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2025-04-30 10:36:48,613 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 41 transitions, 89 flow [2025-04-30 10:36:48,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 39 transitions, 84 flow [2025-04-30 10:36:48,622 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:36:48,632 INFO L340 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;@16f85d50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:36:48,632 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-30 10:36:48,644 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:36:48,644 INFO L116 PetriNetUnfolderBase]: 2/31 cut-off events. [2025-04-30 10:36:48,644 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:36:48,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:48,645 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:48,645 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-30 10:36:48,651 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:48,652 INFO L85 PathProgramCache]: Analyzing trace with hash -886276991, now seen corresponding path program 1 times [2025-04-30 10:36:48,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:48,657 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989213727] [2025-04-30 10:36:48,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:48,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:48,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-30 10:36:48,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-30 10:36:48,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:48,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:48,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:48,974 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989213727] [2025-04-30 10:36:48,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989213727] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:48,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:48,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:48,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328457033] [2025-04-30 10:36:48,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:48,982 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:36:48,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:49,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:36:49,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:36:49,014 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-04-30 10:36:49,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:49,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:49,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-04-30 10:36:49,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:49,188 INFO L116 PetriNetUnfolderBase]: 102/281 cut-off events. [2025-04-30 10:36:49,188 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:36:49,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 281 events. 102/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1224 event pairs, 28 based on Foata normal form. 14/287 useless extension candidates. Maximal degree in co-relation 501. Up to 147 conditions per place. [2025-04-30 10:36:49,192 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 36 selfloop transitions, 7 changer transitions 0/56 dead transitions. [2025-04-30 10:36:49,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 56 transitions, 204 flow [2025-04-30 10:36:49,193 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:36:49,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-30 10:36:49,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2025-04-30 10:36:49,203 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5707317073170731 [2025-04-30 10:36:49,204 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 84 flow. Second operand 5 states and 117 transitions. [2025-04-30 10:36:49,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 56 transitions, 204 flow [2025-04-30 10:36:49,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 56 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:36:49,212 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 118 flow [2025-04-30 10:36:49,214 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2025-04-30 10:36:49,217 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2025-04-30 10:36:49,217 INFO L485 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 118 flow [2025-04-30 10:36:49,218 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:49,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:49,218 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:49,218 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:36:49,218 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-30 10:36:49,219 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:49,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1191082530, now seen corresponding path program 1 times [2025-04-30 10:36:49,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:49,219 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006913241] [2025-04-30 10:36:49,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:49,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:49,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-30 10:36:49,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-30 10:36:49,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:49,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:49,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:49,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:49,338 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006913241] [2025-04-30 10:36:49,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006913241] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:49,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:49,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:49,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121119089] [2025-04-30 10:36:49,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:49,339 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:36:49,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:49,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:36:49,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:36:49,340 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-04-30 10:36:49,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:49,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:49,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-04-30 10:36:49,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:49,436 INFO L116 PetriNetUnfolderBase]: 56/208 cut-off events. [2025-04-30 10:36:49,437 INFO L117 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-04-30 10:36:49,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 208 events. 56/208 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 872 event pairs, 21 based on Foata normal form. 17/222 useless extension candidates. Maximal degree in co-relation 341. Up to 92 conditions per place. [2025-04-30 10:36:49,438 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 29 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2025-04-30 10:36:49,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 54 transitions, 234 flow [2025-04-30 10:36:49,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:36:49,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:36:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2025-04-30 10:36:49,440 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6991869918699187 [2025-04-30 10:36:49,441 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 118 flow. Second operand 3 states and 86 transitions. [2025-04-30 10:36:49,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 54 transitions, 234 flow [2025-04-30 10:36:49,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 227 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-04-30 10:36:49,443 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 162 flow [2025-04-30 10:36:49,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2025-04-30 10:36:49,445 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 7 predicate places. [2025-04-30 10:36:49,445 INFO L485 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 162 flow [2025-04-30 10:36:49,445 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:49,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:49,445 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:49,445 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:36:49,445 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-30 10:36:49,446 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1190132644, now seen corresponding path program 1 times [2025-04-30 10:36:49,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:49,447 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072775607] [2025-04-30 10:36:49,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:49,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:49,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-30 10:36:49,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-30 10:36:49,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:49,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:49,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:49,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:49,671 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072775607] [2025-04-30 10:36:49,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072775607] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:49,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:49,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:36:49,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885295309] [2025-04-30 10:36:49,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:49,672 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:36:49,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:49,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:36:49,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:36:49,673 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-04-30 10:36:49,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:49,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:49,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-04-30 10:36:49,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:49,741 INFO L116 PetriNetUnfolderBase]: 26/129 cut-off events. [2025-04-30 10:36:49,741 INFO L117 PetriNetUnfolderBase]: For 64/67 co-relation queries the response was YES. [2025-04-30 10:36:49,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 129 events. 26/129 cut-off events. For 64/67 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 345 event pairs, 5 based on Foata normal form. 12/141 useless extension candidates. Maximal degree in co-relation 245. Up to 65 conditions per place. [2025-04-30 10:36:49,742 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 24 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2025-04-30 10:36:49,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 45 transitions, 219 flow [2025-04-30 10:36:49,742 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:36:49,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:36:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2025-04-30 10:36:49,744 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2025-04-30 10:36:49,744 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 162 flow. Second operand 4 states and 88 transitions. [2025-04-30 10:36:49,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 45 transitions, 219 flow [2025-04-30 10:36:49,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 45 transitions, 206 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-30 10:36:49,747 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 146 flow [2025-04-30 10:36:49,747 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2025-04-30 10:36:49,748 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2025-04-30 10:36:49,748 INFO L485 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 146 flow [2025-04-30 10:36:49,748 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:49,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:49,748 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:49,748 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:36:49,749 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-30 10:36:49,749 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:49,749 INFO L85 PathProgramCache]: Analyzing trace with hash -577935673, now seen corresponding path program 1 times [2025-04-30 10:36:49,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:49,749 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575921118] [2025-04-30 10:36:49,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:49,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:49,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-30 10:36:49,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-30 10:36:49,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:49,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:49,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:49,883 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575921118] [2025-04-30 10:36:49,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575921118] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:49,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:49,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:36:49,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313776704] [2025-04-30 10:36:49,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:49,884 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:36:49,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:49,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:36:49,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:36:49,887 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-04-30 10:36:49,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:49,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:49,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-04-30 10:36:49,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:49,955 INFO L116 PetriNetUnfolderBase]: 26/121 cut-off events. [2025-04-30 10:36:49,956 INFO L117 PetriNetUnfolderBase]: For 51/53 co-relation queries the response was YES. [2025-04-30 10:36:49,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 121 events. 26/121 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 308 event pairs, 16 based on Foata normal form. 2/122 useless extension candidates. Maximal degree in co-relation 244. Up to 69 conditions per place. [2025-04-30 10:36:49,956 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 24 selfloop transitions, 7 changer transitions 0/42 dead transitions. [2025-04-30 10:36:49,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 212 flow [2025-04-30 10:36:49,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:36:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-30 10:36:49,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2025-04-30 10:36:49,957 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.47317073170731705 [2025-04-30 10:36:49,957 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 146 flow. Second operand 5 states and 97 transitions. [2025-04-30 10:36:49,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 212 flow [2025-04-30 10:36:49,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-30 10:36:49,959 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 144 flow [2025-04-30 10:36:49,959 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=144, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2025-04-30 10:36:49,959 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 7 predicate places. [2025-04-30 10:36:49,959 INFO L485 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 144 flow [2025-04-30 10:36:49,959 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:49,960 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:36:49,960 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:36:49,960 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:36:49,960 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-30 10:36:49,960 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:36:49,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1740347597, now seen corresponding path program 1 times [2025-04-30 10:36:49,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:36:49,960 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473881771] [2025-04-30 10:36:49,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:36:49,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:36:49,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-30 10:36:49,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-30 10:36:49,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:36:49,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:36:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:36:49,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:36:49,993 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473881771] [2025-04-30 10:36:49,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473881771] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:36:49,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:36:49,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-30 10:36:49,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474251747] [2025-04-30 10:36:49,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:36:49,994 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:36:49,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:36:49,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:36:49,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:36:49,994 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-04-30 10:36:49,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:49,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:36:49,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-04-30 10:36:49,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:36:50,030 INFO L116 PetriNetUnfolderBase]: 25/119 cut-off events. [2025-04-30 10:36:50,030 INFO L117 PetriNetUnfolderBase]: For 56/59 co-relation queries the response was YES. [2025-04-30 10:36:50,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 119 events. 25/119 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 307 event pairs, 21 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 104. Up to 90 conditions per place. [2025-04-30 10:36:50,030 INFO L140 encePairwiseOnDemand]: 39/41 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2025-04-30 10:36:50,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 192 flow [2025-04-30 10:36:50,031 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:36:50,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:36:50,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2025-04-30 10:36:50,034 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5203252032520326 [2025-04-30 10:36:50,034 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 144 flow. Second operand 3 states and 64 transitions. [2025-04-30 10:36:50,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 192 flow [2025-04-30 10:36:50,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 37 transitions, 178 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-30 10:36:50,035 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2025-04-30 10:36:50,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2025-04-30 10:36:50,035 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2025-04-30 10:36:50,035 INFO L485 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2025-04-30 10:36:50,035 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:36:50,037 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2025-04-30 10:36:50,038 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2025-04-30 10:36:50,038 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-30 10:36:50,038 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:36:50,038 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-04-30 10:36:50,040 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:36:50,040 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:36:50,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:36:50 BasicIcfg [2025-04-30 10:36:50,049 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:36:50,049 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:36:50,049 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:36:50,050 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:36:50,050 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:36:48" (3/4) ... [2025-04-30 10:36:50,051 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:36:50,055 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:36:50,058 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2025-04-30 10:36:50,058 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-04-30 10:36:50,058 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:36:50,058 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:36:50,105 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:36:50,106 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:36:50,106 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:36:50,106 INFO L158 Benchmark]: Toolchain (without parser) took 2390.77ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 64.5MB in the end (delta: 57.8MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2025-04-30 10:36:50,106 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:50,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.22ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 100.0MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:36:50,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.46ms. Allocated memory is still 167.8MB. Free memory was 100.0MB in the beginning and 97.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:50,107 INFO L158 Benchmark]: Boogie Preprocessor took 31.80ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 96.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:36:50,107 INFO L158 Benchmark]: RCFGBuilder took 332.21ms. Allocated memory is still 167.8MB. Free memory was 96.0MB in the beginning and 70.2MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:36:50,108 INFO L158 Benchmark]: TraceAbstraction took 1542.74ms. Allocated memory is still 167.8MB. Free memory was 69.4MB in the beginning and 70.6MB in the end (delta: -1.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2025-04-30 10:36:50,108 INFO L158 Benchmark]: Witness Printer took 56.40ms. Allocated memory is still 167.8MB. Free memory was 70.6MB in the beginning and 64.5MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:36:50,109 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.22ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 100.0MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.46ms. Allocated memory is still 167.8MB. Free memory was 100.0MB in the beginning and 97.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.80ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 96.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 332.21ms. Allocated memory is still 167.8MB. Free memory was 96.0MB in the beginning and 70.2MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1542.74ms. Allocated memory is still 167.8MB. Free memory was 69.4MB in the beginning and 70.6MB in the end (delta: -1.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 56.40ms. Allocated memory is still 167.8MB. Free memory was 70.6MB in the beginning and 64.5MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 695]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 55 locations, 56 edges, 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: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 260 IncrementalHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 1 mSDtfsCounter, 260 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=2, InterpolantAutomatonStates: 20, 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, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 427 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:36:50,121 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