./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-theta/wsc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-theta/wsc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 13:15:53,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 13:15:53,908 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 13:15:53,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 13:15:53,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 13:15:53,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 13:15:53,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 13:15:53,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 13:15:53,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 13:15:53,948 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 13:15:53,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 13:15:53,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 13:15:53,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 13:15:53,948 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 13:15:53,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 13:15:53,949 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 13:15:53,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:15:53,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 13:15:53,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 13:15:53,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 13:15:53,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 13:15:53,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 13:15:53,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 13:15:53,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 13:15:53,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 13:15:53,950 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 [2025-02-06 13:15:54,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 13:15:54,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 13:15:54,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 13:15:54,256 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 13:15:54,259 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 13:15:54,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/wsc.i [2025-02-06 13:15:55,370 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/65499ee15/5ab843df3d6343a7b143576c205f5ba3/FLAG60cd62b57 [2025-02-06 13:15:55,678 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 13:15:55,678 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-theta/wsc.i [2025-02-06 13:15:55,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/65499ee15/5ab843df3d6343a7b143576c205f5ba3/FLAG60cd62b57 [2025-02-06 13:15:55,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/65499ee15/5ab843df3d6343a7b143576c205f5ba3 [2025-02-06 13:15:55,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 13:15:55,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 13:15:55,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 13:15:55,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 13:15:55,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 13:15:55,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:15:55" (1/1) ... [2025-02-06 13:15:55,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4d35ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:55, skipping insertion in model container [2025-02-06 13:15:55,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:15:55" (1/1) ... [2025-02-06 13:15:55,984 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 13:15:56,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:15:56,167 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 13:15:56,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:15:56,215 INFO L204 MainTranslator]: Completed translation [2025-02-06 13:15:56,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56 WrapperNode [2025-02-06 13:15:56,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 13:15:56,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 13:15:56,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 13:15:56,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 13:15:56,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,247 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 124 [2025-02-06 13:15:56,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 13:15:56,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 13:15:56,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 13:15:56,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 13:15:56,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,255 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,267 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2025-02-06 13:15:56,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,274 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 13:15:56,284 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 13:15:56,284 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 13:15:56,284 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 13:15:56,285 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (1/1) ... [2025-02-06 13:15:56,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:15:56,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:15:56,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 13:15:56,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 13:15:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 13:15:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure f0 [2025-02-06 13:15:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure f0 [2025-02-06 13:15:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2025-02-06 13:15:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2025-02-06 13:15:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2025-02-06 13:15:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2025-02-06 13:15:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure f3 [2025-02-06 13:15:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure f3 [2025-02-06 13:15:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure f4 [2025-02-06 13:15:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure f4 [2025-02-06 13:15:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure f5 [2025-02-06 13:15:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure f5 [2025-02-06 13:15:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 13:15:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 13:15:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 13:15:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 13:15:56,337 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 13:15:56,468 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 13:15:56,469 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 13:15:56,679 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 13:15:56,679 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 13:15:56,802 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 13:15:56,803 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 13:15:56,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:15:56 BoogieIcfgContainer [2025-02-06 13:15:56,803 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 13:15:56,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 13:15:56,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 13:15:56,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 13:15:56,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 01:15:55" (1/3) ... [2025-02-06 13:15:56,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7434101d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:15:56, skipping insertion in model container [2025-02-06 13:15:56,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:15:56" (2/3) ... [2025-02-06 13:15:56,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7434101d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:15:56, skipping insertion in model container [2025-02-06 13:15:56,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:15:56" (3/3) ... [2025-02-06 13:15:56,812 INFO L128 eAbstractionObserver]: Analyzing ICFG wsc.i [2025-02-06 13:15:56,830 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 13:15:56,832 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG wsc.i that has 7 procedures, 55 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 13:15:56,832 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 13:15:56,900 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-02-06 13:15:56,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 55 transitions, 152 flow [2025-02-06 13:15:56,971 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2025-02-06 13:15:56,975 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 13:15:56,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 49 events. 1/49 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2025-02-06 13:15:56,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 55 transitions, 152 flow [2025-02-06 13:15:56,981 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 48 transitions, 132 flow [2025-02-06 13:15:56,990 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 13:15:57,002 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;@47f76d77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 13:15:57,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 13:15:57,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 13:15:57,025 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-02-06 13:15:57,025 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 13:15:57,025 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:15:57,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:15:57,027 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:15:57,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:15:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash 872726316, now seen corresponding path program 1 times [2025-02-06 13:15:57,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:15:57,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664423722] [2025-02-06 13:15:57,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:15:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:15:57,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 13:15:57,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 13:15:57,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:15:57,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:15:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:15:57,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:15:57,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664423722] [2025-02-06 13:15:57,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664423722] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:15:57,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:15:57,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:15:57,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11020870] [2025-02-06 13:15:57,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:15:57,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:15:57,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:15:57,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:15:57,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:15:57,314 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-06 13:15:57,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:15:57,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:15:57,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-06 13:15:57,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:16:00,561 INFO L124 PetriNetUnfolderBase]: 45933/58345 cut-off events. [2025-02-06 13:16:00,561 INFO L125 PetriNetUnfolderBase]: For 4811/4811 co-relation queries the response was YES. [2025-02-06 13:16:00,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120889 conditions, 58345 events. 45933/58345 cut-off events. For 4811/4811 co-relation queries the response was YES. Maximal size of possible extension queue 1771. Compared 286397 event pairs, 31565 based on Foata normal form. 190/58534 useless extension candidates. Maximal degree in co-relation 117357. Up to 58167 conditions per place. [2025-02-06 13:16:00,849 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 51 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2025-02-06 13:16:00,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 274 flow [2025-02-06 13:16:00,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:16:00,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:16:00,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2025-02-06 13:16:00,865 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5818181818181818 [2025-02-06 13:16:00,866 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 132 flow. Second operand 3 states and 96 transitions. [2025-02-06 13:16:00,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 274 flow [2025-02-06 13:16:00,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 242 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-02-06 13:16:00,931 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 125 flow [2025-02-06 13:16:00,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2025-02-06 13:16:00,935 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -12 predicate places. [2025-02-06 13:16:00,938 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 125 flow [2025-02-06 13:16:00,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:00,938 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:16:00,938 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:16:00,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 13:16:00,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:16:00,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:16:00,939 INFO L85 PathProgramCache]: Analyzing trace with hash 328687158, now seen corresponding path program 2 times [2025-02-06 13:16:00,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:16:00,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287467953] [2025-02-06 13:16:00,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:16:00,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:16:00,967 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 1 equivalence classes. [2025-02-06 13:16:00,980 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 13:16:00,984 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 13:16:00,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:16:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:16:01,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:16:01,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287467953] [2025-02-06 13:16:01,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287467953] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:16:01,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:16:01,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:16:01,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719513855] [2025-02-06 13:16:01,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:16:01,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:16:01,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:16:01,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:16:01,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:16:01,081 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-06 13:16:01,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:01,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:16:01,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-06 13:16:01,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:16:02,828 INFO L124 PetriNetUnfolderBase]: 35904/47104 cut-off events. [2025-02-06 13:16:02,828 INFO L125 PetriNetUnfolderBase]: For 10101/10101 co-relation queries the response was YES. [2025-02-06 13:16:02,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103694 conditions, 47104 events. 35904/47104 cut-off events. For 10101/10101 co-relation queries the response was YES. Maximal size of possible extension queue 1428. Compared 251821 event pairs, 10899 based on Foata normal form. 3802/50905 useless extension candidates. Maximal degree in co-relation 26724. Up to 32217 conditions per place. [2025-02-06 13:16:02,987 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 68 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2025-02-06 13:16:02,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 78 transitions, 351 flow [2025-02-06 13:16:02,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:16:02,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:16:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2025-02-06 13:16:02,989 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 13:16:02,989 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 125 flow. Second operand 3 states and 110 transitions. [2025-02-06 13:16:02,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 78 transitions, 351 flow [2025-02-06 13:16:02,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 78 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:16:02,991 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 164 flow [2025-02-06 13:16:02,991 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2025-02-06 13:16:02,992 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -9 predicate places. [2025-02-06 13:16:02,992 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 164 flow [2025-02-06 13:16:02,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:02,992 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:16:02,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:16:02,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 13:16:02,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:16:02,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:16:02,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1044806042, now seen corresponding path program 3 times [2025-02-06 13:16:02,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:16:02,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917052403] [2025-02-06 13:16:02,993 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:16:02,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:16:03,004 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 1 equivalence classes. [2025-02-06 13:16:03,008 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 13:16:03,009 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 13:16:03,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:16:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:16:03,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:16:03,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917052403] [2025-02-06 13:16:03,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917052403] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:16:03,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:16:03,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:16:03,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027507350] [2025-02-06 13:16:03,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:16:03,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:16:03,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:16:03,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:16:03,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:16:03,114 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-06 13:16:03,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:03,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:16:03,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-06 13:16:03,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:16:05,335 INFO L124 PetriNetUnfolderBase]: 42168/55917 cut-off events. [2025-02-06 13:16:05,336 INFO L125 PetriNetUnfolderBase]: For 31048/31048 co-relation queries the response was YES. [2025-02-06 13:16:05,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134399 conditions, 55917 events. 42168/55917 cut-off events. For 31048/31048 co-relation queries the response was YES. Maximal size of possible extension queue 1638. Compared 308988 event pairs, 21775 based on Foata normal form. 1086/57002 useless extension candidates. Maximal degree in co-relation 28306. Up to 33365 conditions per place. [2025-02-06 13:16:05,474 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 68 selfloop transitions, 2 changer transitions 1/76 dead transitions. [2025-02-06 13:16:05,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 76 transitions, 395 flow [2025-02-06 13:16:05,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:16:05,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:16:05,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-02-06 13:16:05,475 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6181818181818182 [2025-02-06 13:16:05,475 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 164 flow. Second operand 3 states and 102 transitions. [2025-02-06 13:16:05,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 76 transitions, 395 flow [2025-02-06 13:16:05,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 76 transitions, 367 flow, removed 7 selfloop flow, removed 2 redundant places. [2025-02-06 13:16:05,508 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 158 flow [2025-02-06 13:16:05,509 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2025-02-06 13:16:05,509 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -8 predicate places. [2025-02-06 13:16:05,509 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 158 flow [2025-02-06 13:16:05,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:05,509 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:16:05,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:16:05,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 13:16:05,510 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:16:05,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:16:05,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1832886984, now seen corresponding path program 4 times [2025-02-06 13:16:05,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:16:05,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777196112] [2025-02-06 13:16:05,510 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:16:05,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:16:05,519 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-06 13:16:05,524 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 43 of 44 statements. [2025-02-06 13:16:05,524 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-06 13:16:05,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:16:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:16:05,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:16:05,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777196112] [2025-02-06 13:16:05,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777196112] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:16:05,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:16:05,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:16:05,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273417373] [2025-02-06 13:16:05,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:16:05,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:16:05,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:16:05,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:16:05,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:16:05,566 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-06 13:16:05,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:05,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:16:05,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-06 13:16:05,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:16:07,736 INFO L124 PetriNetUnfolderBase]: 48000/64389 cut-off events. [2025-02-06 13:16:07,739 INFO L125 PetriNetUnfolderBase]: For 28182/28182 co-relation queries the response was YES. [2025-02-06 13:16:07,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152343 conditions, 64389 events. 48000/64389 cut-off events. For 28182/28182 co-relation queries the response was YES. Maximal size of possible extension queue 1915. Compared 379453 event pairs, 21654 based on Foata normal form. 1850/66238 useless extension candidates. Maximal degree in co-relation 68294. Up to 34165 conditions per place. [2025-02-06 13:16:07,878 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 73 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2025-02-06 13:16:07,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 80 transitions, 404 flow [2025-02-06 13:16:07,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:16:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:16:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2025-02-06 13:16:07,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6242424242424243 [2025-02-06 13:16:07,880 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 158 flow. Second operand 3 states and 103 transitions. [2025-02-06 13:16:07,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 80 transitions, 404 flow [2025-02-06 13:16:08,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 80 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:16:08,208 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 168 flow [2025-02-06 13:16:08,208 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2025-02-06 13:16:08,209 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -6 predicate places. [2025-02-06 13:16:08,209 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 168 flow [2025-02-06 13:16:08,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:08,209 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:16:08,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:16:08,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 13:16:08,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:16:08,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:16:08,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1315293904, now seen corresponding path program 5 times [2025-02-06 13:16:08,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:16:08,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578773532] [2025-02-06 13:16:08,210 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:16:08,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:16:08,218 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 1 equivalence classes. [2025-02-06 13:16:08,222 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 13:16:08,222 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 13:16:08,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:16:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:16:08,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:16:08,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578773532] [2025-02-06 13:16:08,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578773532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:16:08,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:16:08,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:16:08,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603335706] [2025-02-06 13:16:08,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:16:08,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:16:08,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:16:08,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:16:08,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:16:08,259 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-06 13:16:08,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:08,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:16:08,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-06 13:16:08,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:16:11,008 INFO L124 PetriNetUnfolderBase]: 52177/70768 cut-off events. [2025-02-06 13:16:11,008 INFO L125 PetriNetUnfolderBase]: For 37300/37300 co-relation queries the response was YES. [2025-02-06 13:16:11,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176471 conditions, 70768 events. 52177/70768 cut-off events. For 37300/37300 co-relation queries the response was YES. Maximal size of possible extension queue 2181. Compared 426518 event pairs, 30812 based on Foata normal form. 1994/72761 useless extension candidates. Maximal degree in co-relation 66406. Up to 47081 conditions per place. [2025-02-06 13:16:11,149 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 62 selfloop transitions, 2 changer transitions 9/78 dead transitions. [2025-02-06 13:16:11,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 78 transitions, 410 flow [2025-02-06 13:16:11,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:16:11,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:16:11,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2025-02-06 13:16:11,154 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2025-02-06 13:16:11,154 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 168 flow. Second operand 3 states and 100 transitions. [2025-02-06 13:16:11,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 78 transitions, 410 flow [2025-02-06 13:16:11,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 406 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 13:16:11,277 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 160 flow [2025-02-06 13:16:11,277 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2025-02-06 13:16:11,278 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2025-02-06 13:16:11,278 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 160 flow [2025-02-06 13:16:11,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:11,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 13:16:11,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:16:11,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 13:16:11,279 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2025-02-06 13:16:11,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:16:11,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1346893600, now seen corresponding path program 6 times [2025-02-06 13:16:11,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:16:11,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239137209] [2025-02-06 13:16:11,280 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 13:16:11,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:16:11,287 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 44 statements into 1 equivalence classes. [2025-02-06 13:16:11,290 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 13:16:11,290 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 13:16:11,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:16:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:16:11,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:16:11,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239137209] [2025-02-06 13:16:11,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239137209] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:16:11,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:16:11,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:16:11,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402382693] [2025-02-06 13:16:11,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:16:11,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:16:11,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:16:11,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:16:11,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:16:11,323 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-06 13:16:11,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:11,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 13:16:11,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-06 13:16:11,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 13:16:13,063 INFO L124 PetriNetUnfolderBase]: 27255/37556 cut-off events. [2025-02-06 13:16:13,064 INFO L125 PetriNetUnfolderBase]: For 24224/24224 co-relation queries the response was YES. [2025-02-06 13:16:13,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98176 conditions, 37556 events. 27255/37556 cut-off events. For 24224/24224 co-relation queries the response was YES. Maximal size of possible extension queue 1415. Compared 219856 event pairs, 13951 based on Foata normal form. 1136/38691 useless extension candidates. Maximal degree in co-relation 43133. Up to 20315 conditions per place. [2025-02-06 13:16:13,114 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2025-02-06 13:16:13,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 62 transitions, 337 flow [2025-02-06 13:16:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:16:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 13:16:13,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2025-02-06 13:16:13,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2025-02-06 13:16:13,115 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 160 flow. Second operand 3 states and 91 transitions. [2025-02-06 13:16:13,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 62 transitions, 337 flow [2025-02-06 13:16:13,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 62 transitions, 330 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 13:16:13,215 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2025-02-06 13:16:13,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2025-02-06 13:16:13,216 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -10 predicate places. [2025-02-06 13:16:13,216 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2025-02-06 13:16:13,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:16:13,218 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-02-06 13:16:13,218 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-02-06 13:16:13,218 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2025-02-06 13:16:13,218 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2025-02-06 13:16:13,218 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2025-02-06 13:16:13,218 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2025-02-06 13:16:13,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2025-02-06 13:16:13,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2025-02-06 13:16:13,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 13:16:13,219 INFO L422 BasicCegarLoop]: Path program histogram: [6] [2025-02-06 13:16:13,221 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 13:16:13,221 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 13:16:13,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 01:16:13 BasicIcfg [2025-02-06 13:16:13,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 13:16:13,225 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 13:16:13,225 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 13:16:13,225 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 13:16:13,225 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:15:56" (3/4) ... [2025-02-06 13:16:13,227 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 13:16:13,229 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f0 [2025-02-06 13:16:13,229 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f1 [2025-02-06 13:16:13,229 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f2 [2025-02-06 13:16:13,229 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f3 [2025-02-06 13:16:13,229 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f4 [2025-02-06 13:16:13,229 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f5 [2025-02-06 13:16:13,231 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2025-02-06 13:16:13,232 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2025-02-06 13:16:13,232 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-06 13:16:13,232 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-06 13:16:13,275 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 13:16:13,275 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 13:16:13,275 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 13:16:13,276 INFO L158 Benchmark]: Toolchain (without parser) took 17327.32ms. Allocated memory was 201.3MB in the beginning and 10.8GB in the end (delta: 10.6GB). Free memory was 157.6MB in the beginning and 9.0GB in the end (delta: -8.8GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2025-02-06 13:16:13,276 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:16:13,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.14ms. Allocated memory is still 201.3MB. Free memory was 157.6MB in the beginning and 137.3MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 13:16:13,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.31ms. Allocated memory is still 201.3MB. Free memory was 137.3MB in the beginning and 135.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 13:16:13,277 INFO L158 Benchmark]: Boogie Preprocessor took 35.75ms. Allocated memory is still 201.3MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:16:13,277 INFO L158 Benchmark]: IcfgBuilder took 519.34ms. Allocated memory is still 201.3MB. Free memory was 133.5MB in the beginning and 100.0MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 13:16:13,277 INFO L158 Benchmark]: TraceAbstraction took 16419.58ms. Allocated memory was 201.3MB in the beginning and 10.8GB in the end (delta: 10.6GB). Free memory was 99.6MB in the beginning and 9.0GB in the end (delta: -8.9GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2025-02-06 13:16:13,277 INFO L158 Benchmark]: Witness Printer took 50.78ms. Allocated memory is still 10.8GB. Free memory was 9.0GB in the beginning and 9.0GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:16:13,278 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.14ms. Allocated memory is still 201.3MB. Free memory was 157.6MB in the beginning and 137.3MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.31ms. Allocated memory is still 201.3MB. Free memory was 137.3MB in the beginning and 135.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.75ms. Allocated memory is still 201.3MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 519.34ms. Allocated memory is still 201.3MB. Free memory was 133.5MB in the beginning and 100.0MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 16419.58ms. Allocated memory was 201.3MB in the beginning and 10.8GB in the end (delta: 10.6GB). Free memory was 99.6MB in the beginning and 9.0GB in the end (delta: -8.9GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Witness Printer took 50.78ms. Allocated memory is still 10.8GB. Free memory was 9.0GB in the beginning and 9.0GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 788]: 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 13 procedures, 89 locations, 8 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: 16.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 564 IncrementalHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 564 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 264 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2025-02-06 13:16:13,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE