./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 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 ../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.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 fb302bfc042709458f72100356b9fd74bb7921271e539fc7dcbd801222f139c8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:58:09,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:58:09,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:58:09,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:58:09,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:58:09,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:58:09,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:58:09,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:58:09,586 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:58:09,586 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:58:09,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:58:09,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:58:09,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:58:09,587 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:58:09,587 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:58:09,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:58:09,588 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:58:09,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:58:09,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:58:09,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:58:09,588 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:58:09,588 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:58:09,588 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:58:09,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:58:09,589 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:58:09,589 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:58:09,589 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:58:09,589 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:58:09,589 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:58:09,589 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:58:09,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:58:09,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:58:09,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:58:09,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:09,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:58:09,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:58:09,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:58:09,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:58:09,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:58:09,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:58:09,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:58:09,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:58:09,590 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 -> fb302bfc042709458f72100356b9fd74bb7921271e539fc7dcbd801222f139c8 [2025-03-04 09:58:09,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:58:09,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:58:09,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:58:09,794 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:58:09,795 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:58:09,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2025-03-04 09:58:10,900 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758a766d6/d06a6adcd2c94493bac47c4a238f9fe3/FLAG1c23dd0a4 [2025-03-04 09:58:11,139 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:11,140 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2025-03-04 09:58:11,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758a766d6/d06a6adcd2c94493bac47c4a238f9fe3/FLAG1c23dd0a4 [2025-03-04 09:58:11,462 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758a766d6/d06a6adcd2c94493bac47c4a238f9fe3 [2025-03-04 09:58:11,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:11,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:11,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:11,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:11,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:11,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c453938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11, skipping insertion in model container [2025-03-04 09:58:11,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:11,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:11,749 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:58:11,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:11,809 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:58:11,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11 WrapperNode [2025-03-04 09:58:11,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:11,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:11,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:58:11,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:58:11,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,838 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-03-04 09:58:11,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:11,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:58:11,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:58:11,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:58:11,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,864 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 09:58:11,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,869 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:58:11,877 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:58:11,877 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:58:11,877 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:58:11,882 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:11,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:11,908 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) [2025-03-04 09:58:11,911 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 [2025-03-04 09:58:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:58:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:58:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:58:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:58:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:58:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:58:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:58:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:58:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:58:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:58:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:58:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:58:11,931 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:58:12,035 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:58:12,037 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:58:12,156 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:58:12,157 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:58:12,232 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:58:12,232 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:58:12,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:12 BoogieIcfgContainer [2025-03-04 09:58:12,232 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:58:12,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:58:12,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:58:12,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:58:12,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:58:11" (1/3) ... [2025-03-04 09:58:12,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8ba431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:12, skipping insertion in model container [2025-03-04 09:58:12,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (2/3) ... [2025-03-04 09:58:12,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8ba431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:12, skipping insertion in model container [2025-03-04 09:58:12,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:12" (3/3) ... [2025-03-04 09:58:12,241 INFO L128 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2025-03-04 09:58:12,251 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:58:12,253 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i that has 4 procedures, 45 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 09:58:12,254 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:58:12,290 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:58:12,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 46 transitions, 104 flow [2025-03-04 09:58:12,347 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2025-03-04 09:58:12,350 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:12,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2025-03-04 09:58:12,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 46 transitions, 104 flow [2025-03-04 09:58:12,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 42 transitions, 93 flow [2025-03-04 09:58:12,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:58:12,376 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;@65d682f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:58:12,376 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-04 09:58:12,388 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:58:12,391 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-03-04 09:58:12,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:12,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:12,392 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:12,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:12,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1153240663, now seen corresponding path program 1 times [2025-03-04 09:58:12,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:12,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145780069] [2025-03-04 09:58:12,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:12,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:12,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:12,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:12,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:12,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:12,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:12,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145780069] [2025-03-04 09:58:12,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145780069] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:12,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:12,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:58:12,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627315461] [2025-03-04 09:58:12,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:12,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:12,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:12,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:12,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:12,598 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 46 [2025-03-04 09:58:12,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:12,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:12,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 46 [2025-03-04 09:58:12,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:13,375 INFO L124 PetriNetUnfolderBase]: 7776/11820 cut-off events. [2025-03-04 09:58:13,375 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2025-03-04 09:58:13,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22915 conditions, 11820 events. 7776/11820 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 71606 event pairs, 7776 based on Foata normal form. 980/12738 useless extension candidates. Maximal degree in co-relation 22904. Up to 10976 conditions per place. [2025-03-04 09:58:13,440 INFO L140 encePairwiseOnDemand]: 42/46 looper letters, 30 selfloop transitions, 1 changer transitions 1/38 dead transitions. [2025-03-04 09:58:13,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 149 flow [2025-03-04 09:58:13,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:13,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2025-03-04 09:58:13,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4492753623188406 [2025-03-04 09:58:13,452 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 93 flow. Second operand 3 states and 62 transitions. [2025-03-04 09:58:13,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 149 flow [2025-03-04 09:58:13,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 146 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:13,458 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 82 flow [2025-03-04 09:58:13,460 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2025-03-04 09:58:13,462 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2025-03-04 09:58:13,463 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 82 flow [2025-03-04 09:58:13,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:13,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:13,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:13,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:58:13,465 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:13,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:13,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1153240176, now seen corresponding path program 1 times [2025-03-04 09:58:13,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:13,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231717751] [2025-03-04 09:58:13,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:13,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:13,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:13,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:13,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:13,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:13,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:13,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231717751] [2025-03-04 09:58:13,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231717751] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:13,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:13,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:13,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476492036] [2025-03-04 09:58:13,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:13,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:13,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:13,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:13,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:13,769 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 46 [2025-03-04 09:58:13,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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) [2025-03-04 09:58:13,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:13,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 46 [2025-03-04 09:58:13,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:15,229 INFO L124 PetriNetUnfolderBase]: 17496/25481 cut-off events. [2025-03-04 09:58:15,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:15,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50536 conditions, 25481 events. 17496/25481 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 862. Compared 162161 event pairs, 3999 based on Foata normal form. 0/24908 useless extension candidates. Maximal degree in co-relation 50530. Up to 8654 conditions per place. [2025-03-04 09:58:15,330 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 52 selfloop transitions, 6 changer transitions 111/174 dead transitions. [2025-03-04 09:58:15,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 174 transitions, 698 flow [2025-03-04 09:58:15,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:58:15,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:58:15,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 252 transitions. [2025-03-04 09:58:15,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2025-03-04 09:58:15,335 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 82 flow. Second operand 9 states and 252 transitions. [2025-03-04 09:58:15,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 174 transitions, 698 flow [2025-03-04 09:58:15,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 174 transitions, 697 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:58:15,341 INFO L231 Difference]: Finished difference. Result has 61 places, 40 transitions, 153 flow [2025-03-04 09:58:15,341 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=153, PETRI_PLACES=61, PETRI_TRANSITIONS=40} [2025-03-04 09:58:15,342 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 11 predicate places. [2025-03-04 09:58:15,342 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 40 transitions, 153 flow [2025-03-04 09:58:15,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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) [2025-03-04 09:58:15,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:15,342 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:15,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:58:15,343 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:15,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash 963215471, now seen corresponding path program 1 times [2025-03-04 09:58:15,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:15,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641316923] [2025-03-04 09:58:15,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:15,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:15,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:58:15,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:58:15,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:15,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:15,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:15,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:15,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641316923] [2025-03-04 09:58:15,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641316923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:15,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:15,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:15,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979943869] [2025-03-04 09:58:15,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:15,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:15,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:15,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:15,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:15,527 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 46 [2025-03-04 09:58:15,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 40 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2025-03-04 09:58:15,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:15,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 46 [2025-03-04 09:58:15,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:16,603 INFO L124 PetriNetUnfolderBase]: 11558/16981 cut-off events. [2025-03-04 09:58:16,603 INFO L125 PetriNetUnfolderBase]: For 16891/16891 co-relation queries the response was YES. [2025-03-04 09:58:16,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44178 conditions, 16981 events. 11558/16981 cut-off events. For 16891/16891 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 99882 event pairs, 3400 based on Foata normal form. 514/17482 useless extension candidates. Maximal degree in co-relation 44163. Up to 4593 conditions per place. [2025-03-04 09:58:16,689 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 60 selfloop transitions, 6 changer transitions 97/168 dead transitions. [2025-03-04 09:58:16,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 168 transitions, 913 flow [2025-03-04 09:58:16,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:58:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:58:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 244 transitions. [2025-03-04 09:58:16,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5304347826086957 [2025-03-04 09:58:16,691 INFO L175 Difference]: Start difference. First operand has 61 places, 40 transitions, 153 flow. Second operand 10 states and 244 transitions. [2025-03-04 09:58:16,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 168 transitions, 913 flow [2025-03-04 09:58:16,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 168 transitions, 839 flow, removed 16 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:16,737 INFO L231 Difference]: Finished difference. Result has 68 places, 42 transitions, 187 flow [2025-03-04 09:58:16,737 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=187, PETRI_PLACES=68, PETRI_TRANSITIONS=42} [2025-03-04 09:58:16,737 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 18 predicate places. [2025-03-04 09:58:16,737 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 42 transitions, 187 flow [2025-03-04 09:58:16,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2025-03-04 09:58:16,738 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:16,738 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] [2025-03-04 09:58:16,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:58:16,738 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:16,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:16,738 INFO L85 PathProgramCache]: Analyzing trace with hash 395600265, now seen corresponding path program 1 times [2025-03-04 09:58:16,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:16,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733472588] [2025-03-04 09:58:16,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:16,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:16,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 09:58:16,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 09:58:16,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:16,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:16,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:16,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733472588] [2025-03-04 09:58:16,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733472588] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:16,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:16,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:58:16,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107999919] [2025-03-04 09:58:16,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:16,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:58:16,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:16,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:58:16,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:58:16,852 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 46 [2025-03-04 09:58:16,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 42 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2025-03-04 09:58:16,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:16,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 46 [2025-03-04 09:58:16,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:17,464 INFO L124 PetriNetUnfolderBase]: 7929/12136 cut-off events. [2025-03-04 09:58:17,464 INFO L125 PetriNetUnfolderBase]: For 15383/15383 co-relation queries the response was YES. [2025-03-04 09:58:17,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31931 conditions, 12136 events. 7929/12136 cut-off events. For 15383/15383 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 72983 event pairs, 1582 based on Foata normal form. 619/12742 useless extension candidates. Maximal degree in co-relation 31909. Up to 5814 conditions per place. [2025-03-04 09:58:17,519 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 78 selfloop transitions, 5 changer transitions 5/93 dead transitions. [2025-03-04 09:58:17,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 93 transitions, 601 flow [2025-03-04 09:58:17,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:58:17,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:58:17,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2025-03-04 09:58:17,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2025-03-04 09:58:17,521 INFO L175 Difference]: Start difference. First operand has 68 places, 42 transitions, 187 flow. Second operand 4 states and 112 transitions. [2025-03-04 09:58:17,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 93 transitions, 601 flow [2025-03-04 09:58:17,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 93 transitions, 578 flow, removed 8 selfloop flow, removed 5 redundant places. [2025-03-04 09:58:17,583 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 202 flow [2025-03-04 09:58:17,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=62, PETRI_TRANSITIONS=45} [2025-03-04 09:58:17,584 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 12 predicate places. [2025-03-04 09:58:17,584 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 202 flow [2025-03-04 09:58:17,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2025-03-04 09:58:17,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:17,584 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] [2025-03-04 09:58:17,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:58:17,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:17,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:17,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1813385264, now seen corresponding path program 1 times [2025-03-04 09:58:17,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:17,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71091225] [2025-03-04 09:58:17,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:17,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:17,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 09:58:17,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 09:58:17,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:17,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:17,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:17,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:17,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71091225] [2025-03-04 09:58:17,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71091225] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:17,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:17,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:17,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761418105] [2025-03-04 09:58:17,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:17,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:17,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:17,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:17,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:17,747 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 46 [2025-03-04 09:58:17,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 45 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2025-03-04 09:58:17,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:17,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 46 [2025-03-04 09:58:17,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:18,062 INFO L124 PetriNetUnfolderBase]: 4693/7229 cut-off events. [2025-03-04 09:58:18,062 INFO L125 PetriNetUnfolderBase]: For 7193/7193 co-relation queries the response was YES. [2025-03-04 09:58:18,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20390 conditions, 7229 events. 4693/7229 cut-off events. For 7193/7193 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 39767 event pairs, 957 based on Foata normal form. 406/7622 useless extension candidates. Maximal degree in co-relation 20369. Up to 2691 conditions per place. [2025-03-04 09:58:18,090 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 84 selfloop transitions, 8 changer transitions 19/116 dead transitions. [2025-03-04 09:58:18,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 116 transitions, 755 flow [2025-03-04 09:58:18,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:58:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:58:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 143 transitions. [2025-03-04 09:58:18,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6217391304347826 [2025-03-04 09:58:18,091 INFO L175 Difference]: Start difference. First operand has 62 places, 45 transitions, 202 flow. Second operand 5 states and 143 transitions. [2025-03-04 09:58:18,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 116 transitions, 755 flow [2025-03-04 09:58:18,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 116 transitions, 689 flow, removed 29 selfloop flow, removed 6 redundant places. [2025-03-04 09:58:18,105 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 226 flow [2025-03-04 09:58:18,105 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2025-03-04 09:58:18,105 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 12 predicate places. [2025-03-04 09:58:18,105 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 226 flow [2025-03-04 09:58:18,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2025-03-04 09:58:18,106 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:18,106 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] [2025-03-04 09:58:18,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:58:18,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:18,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:18,107 INFO L85 PathProgramCache]: Analyzing trace with hash -2053102574, now seen corresponding path program 1 times [2025-03-04 09:58:18,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:18,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709554628] [2025-03-04 09:58:18,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:18,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:18,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:58:18,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:58:18,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:18,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:18,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:18,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:18,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709554628] [2025-03-04 09:58:18,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709554628] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:18,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:18,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:58:18,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912001461] [2025-03-04 09:58:18,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:18,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:58:18,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:18,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:58:18,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:58:18,226 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 46 [2025-03-04 09:58:18,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:18,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:18,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 46 [2025-03-04 09:58:18,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:18,943 INFO L124 PetriNetUnfolderBase]: 7518/11649 cut-off events. [2025-03-04 09:58:18,944 INFO L125 PetriNetUnfolderBase]: For 10952/10952 co-relation queries the response was YES. [2025-03-04 09:58:18,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32803 conditions, 11649 events. 7518/11649 cut-off events. For 10952/10952 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 69786 event pairs, 1996 based on Foata normal form. 60/11706 useless extension candidates. Maximal degree in co-relation 32784. Up to 2918 conditions per place. [2025-03-04 09:58:18,974 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 101 selfloop transitions, 10 changer transitions 65/181 dead transitions. [2025-03-04 09:58:18,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 181 transitions, 1173 flow [2025-03-04 09:58:18,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:58:18,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:58:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 216 transitions. [2025-03-04 09:58:18,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2025-03-04 09:58:18,975 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 226 flow. Second operand 8 states and 216 transitions. [2025-03-04 09:58:18,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 181 transitions, 1173 flow [2025-03-04 09:58:19,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 181 transitions, 1071 flow, removed 20 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:19,010 INFO L231 Difference]: Finished difference. Result has 69 places, 50 transitions, 251 flow [2025-03-04 09:58:19,010 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=251, PETRI_PLACES=69, PETRI_TRANSITIONS=50} [2025-03-04 09:58:19,011 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 19 predicate places. [2025-03-04 09:58:19,011 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 50 transitions, 251 flow [2025-03-04 09:58:19,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:19,011 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:19,011 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] [2025-03-04 09:58:19,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:58:19,012 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:19,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:19,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1342921994, now seen corresponding path program 2 times [2025-03-04 09:58:19,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:19,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594497917] [2025-03-04 09:58:19,012 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:58:19,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:19,018 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:58:19,022 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:58:19,022 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:58:19,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:19,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:19,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:19,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594497917] [2025-03-04 09:58:19,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594497917] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:19,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:19,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:58:19,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099510464] [2025-03-04 09:58:19,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:19,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:19,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:19,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:19,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:19,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 46 [2025-03-04 09:58:19,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 50 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2025-03-04 09:58:19,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:19,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 46 [2025-03-04 09:58:19,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:19,545 INFO L124 PetriNetUnfolderBase]: 5422/8437 cut-off events. [2025-03-04 09:58:19,545 INFO L125 PetriNetUnfolderBase]: For 7628/7628 co-relation queries the response was YES. [2025-03-04 09:58:19,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23288 conditions, 8437 events. 5422/8437 cut-off events. For 7628/7628 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 48355 event pairs, 1138 based on Foata normal form. 60/8494 useless extension candidates. Maximal degree in co-relation 23266. Up to 3426 conditions per place. [2025-03-04 09:58:19,570 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 68 selfloop transitions, 5 changer transitions 52/130 dead transitions. [2025-03-04 09:58:19,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 130 transitions, 807 flow [2025-03-04 09:58:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:19,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:19,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2025-03-04 09:58:19,571 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.572463768115942 [2025-03-04 09:58:19,571 INFO L175 Difference]: Start difference. First operand has 69 places, 50 transitions, 251 flow. Second operand 6 states and 158 transitions. [2025-03-04 09:58:19,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 130 transitions, 807 flow [2025-03-04 09:58:19,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 130 transitions, 791 flow, removed 8 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:19,590 INFO L231 Difference]: Finished difference. Result has 71 places, 44 transitions, 213 flow [2025-03-04 09:58:19,591 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=213, PETRI_PLACES=71, PETRI_TRANSITIONS=44} [2025-03-04 09:58:19,591 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 21 predicate places. [2025-03-04 09:58:19,591 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 44 transitions, 213 flow [2025-03-04 09:58:19,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2025-03-04 09:58:19,591 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:19,591 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] [2025-03-04 09:58:19,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:58:19,591 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:19,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:19,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1776140624, now seen corresponding path program 3 times [2025-03-04 09:58:19,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:19,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839612250] [2025-03-04 09:58:19,592 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 09:58:19,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:19,598 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:58:19,605 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:58:19,605 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 09:58:19,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:19,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:19,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839612250] [2025-03-04 09:58:19,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839612250] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:19,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:19,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:19,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821453966] [2025-03-04 09:58:19,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:19,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:19,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:19,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:19,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:19,680 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 46 [2025-03-04 09:58:19,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 44 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2025-03-04 09:58:19,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:19,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 46 [2025-03-04 09:58:19,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:19,841 INFO L124 PetriNetUnfolderBase]: 1468/2299 cut-off events. [2025-03-04 09:58:19,842 INFO L125 PetriNetUnfolderBase]: For 3548/3548 co-relation queries the response was YES. [2025-03-04 09:58:19,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6576 conditions, 2299 events. 1468/2299 cut-off events. For 3548/3548 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 10303 event pairs, 280 based on Foata normal form. 96/2392 useless extension candidates. Maximal degree in co-relation 6552. Up to 788 conditions per place. [2025-03-04 09:58:19,851 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 63 selfloop transitions, 11 changer transitions 4/83 dead transitions. [2025-03-04 09:58:19,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 83 transitions, 544 flow [2025-03-04 09:58:19,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:19,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:19,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2025-03-04 09:58:19,853 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4891304347826087 [2025-03-04 09:58:19,853 INFO L175 Difference]: Start difference. First operand has 71 places, 44 transitions, 213 flow. Second operand 6 states and 135 transitions. [2025-03-04 09:58:19,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 83 transitions, 544 flow [2025-03-04 09:58:19,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 83 transitions, 443 flow, removed 16 selfloop flow, removed 14 redundant places. [2025-03-04 09:58:19,858 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 200 flow [2025-03-04 09:58:19,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=200, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2025-03-04 09:58:19,859 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 12 predicate places. [2025-03-04 09:58:19,859 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 200 flow [2025-03-04 09:58:19,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2025-03-04 09:58:19,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:19,859 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] [2025-03-04 09:58:19,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:58:19,860 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:19,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:19,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1981938595, now seen corresponding path program 1 times [2025-03-04 09:58:19,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:19,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690151316] [2025-03-04 09:58:19,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:19,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:19,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:19,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:19,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:19,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:19,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:19,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690151316] [2025-03-04 09:58:19,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690151316] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:19,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:19,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:58:19,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321825321] [2025-03-04 09:58:19,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:19,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:58:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:19,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:58:19,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:58:19,982 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 46 [2025-03-04 09:58:19,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 200 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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) [2025-03-04 09:58:19,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:19,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 46 [2025-03-04 09:58:19,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:20,314 INFO L124 PetriNetUnfolderBase]: 1796/2811 cut-off events. [2025-03-04 09:58:20,319 INFO L125 PetriNetUnfolderBase]: For 3188/3188 co-relation queries the response was YES. [2025-03-04 09:58:20,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7906 conditions, 2811 events. 1796/2811 cut-off events. For 3188/3188 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 13007 event pairs, 242 based on Foata normal form. 8/2816 useless extension candidates. Maximal degree in co-relation 7892. Up to 1149 conditions per place. [2025-03-04 09:58:20,332 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 57 selfloop transitions, 5 changer transitions 52/119 dead transitions. [2025-03-04 09:58:20,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 119 transitions, 784 flow [2025-03-04 09:58:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:58:20,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:58:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 165 transitions. [2025-03-04 09:58:20,348 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4483695652173913 [2025-03-04 09:58:20,348 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 200 flow. Second operand 8 states and 165 transitions. [2025-03-04 09:58:20,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 119 transitions, 784 flow [2025-03-04 09:58:20,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 119 transitions, 590 flow, removed 30 selfloop flow, removed 8 redundant places. [2025-03-04 09:58:20,356 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 164 flow [2025-03-04 09:58:20,357 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=164, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2025-03-04 09:58:20,357 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 15 predicate places. [2025-03-04 09:58:20,358 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 164 flow [2025-03-04 09:58:20,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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) [2025-03-04 09:58:20,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:20,358 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] [2025-03-04 09:58:20,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 09:58:20,358 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:20,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:20,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1121200367, now seen corresponding path program 2 times [2025-03-04 09:58:20,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:20,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181002376] [2025-03-04 09:58:20,359 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:58:20,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:20,378 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:20,382 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:20,386 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:58:20,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:20,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:20,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181002376] [2025-03-04 09:58:20,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181002376] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:20,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:20,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:58:20,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87861491] [2025-03-04 09:58:20,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:20,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:20,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:20,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:20,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:20,523 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 46 [2025-03-04 09:58:20,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-04 09:58:20,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:20,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 46 [2025-03-04 09:58:20,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:20,752 INFO L124 PetriNetUnfolderBase]: 1664/2590 cut-off events. [2025-03-04 09:58:20,753 INFO L125 PetriNetUnfolderBase]: For 1432/1432 co-relation queries the response was YES. [2025-03-04 09:58:20,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6479 conditions, 2590 events. 1664/2590 cut-off events. For 1432/1432 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12020 event pairs, 374 based on Foata normal form. 8/2596 useless extension candidates. Maximal degree in co-relation 6471. Up to 1318 conditions per place. [2025-03-04 09:58:20,761 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2025-03-04 09:58:20,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 463 flow [2025-03-04 09:58:20,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:20,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2025-03-04 09:58:20,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4384057971014493 [2025-03-04 09:58:20,762 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 164 flow. Second operand 6 states and 121 transitions. [2025-03-04 09:58:20,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 463 flow [2025-03-04 09:58:20,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 85 transitions, 439 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-03-04 09:58:20,765 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2025-03-04 09:58:20,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2025-03-04 09:58:20,766 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 8 predicate places. [2025-03-04 09:58:20,766 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2025-03-04 09:58:20,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-04 09:58:20,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-04 09:58:20,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-04 09:58:20,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-04 09:58:20,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-04 09:58:20,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-04 09:58:20,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 09:58:20,770 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2025-03-04 09:58:20,773 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:58:20,773 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:58:20,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:58:20 BasicIcfg [2025-03-04 09:58:20,777 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:58:20,778 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:58:20,778 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:58:20,778 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:58:20,779 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:12" (3/4) ... [2025-03-04 09:58:20,782 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:58:20,785 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:58:20,786 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:58:20,786 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:58:20,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-04 09:58:20,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-04 09:58:20,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 09:58:20,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 09:58:20,851 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:58:20,851 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:58:20,852 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:58:20,852 INFO L158 Benchmark]: Toolchain (without parser) took 9387.98ms. Allocated memory was 167.8MB in the beginning and 897.6MB in the end (delta: 729.8MB). Free memory was 134.2MB in the beginning and 478.2MB in the end (delta: -343.9MB). Peak memory consumption was 382.2MB. Max. memory is 16.1GB. [2025-03-04 09:58:20,853 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:20,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.78ms. Allocated memory is still 167.8MB. Free memory was 133.8MB in the beginning and 113.9MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:20,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.44ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 112.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:58:20,853 INFO L158 Benchmark]: Boogie Preprocessor took 37.32ms. Allocated memory is still 167.8MB. Free memory was 112.4MB in the beginning and 111.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:20,854 INFO L158 Benchmark]: IcfgBuilder took 355.76ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 91.1MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:20,854 INFO L158 Benchmark]: TraceAbstraction took 8543.47ms. Allocated memory was 167.8MB in the beginning and 897.6MB in the end (delta: 729.8MB). Free memory was 90.2MB in the beginning and 482.3MB in the end (delta: -392.1MB). Peak memory consumption was 340.3MB. Max. memory is 16.1GB. [2025-03-04 09:58:20,854 INFO L158 Benchmark]: Witness Printer took 73.58ms. Allocated memory is still 897.6MB. Free memory was 482.3MB in the beginning and 478.2MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:20,856 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.78ms. Allocated memory is still 167.8MB. Free memory was 133.8MB in the beginning and 113.9MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.44ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 112.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.32ms. Allocated memory is still 167.8MB. Free memory was 112.4MB in the beginning and 111.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 355.76ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 91.1MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8543.47ms. Allocated memory was 167.8MB in the beginning and 897.6MB in the end (delta: 729.8MB). Free memory was 90.2MB in the beginning and 482.3MB in the end (delta: -392.1MB). Peak memory consumption was 340.3MB. Max. memory is 16.1GB. * Witness Printer took 73.58ms. Allocated memory is still 897.6MB. Free memory was 482.3MB in the beginning and 478.2MB 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: 782]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: 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 7 procedures, 72 locations, 5 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: 8.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 732 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 728 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2123 IncrementalHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 2 mSDtfsCounter, 2123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=6, InterpolantAutomatonStates: 65, 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, 1.3s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 1070 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2025-03-04 09:58:20,869 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