./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:18:44,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:18:44,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:18:44,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:18:44,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:18:44,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:18:44,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:18:44,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:18:44,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:18:44,214 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:18:44,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:18:44,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:18:44,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:18:44,215 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:18:44,215 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:18:44,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:18:44,215 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:18:44,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:18:44,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:18:44,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:18:44,216 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:18:44,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:18:44,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:18:44,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:18:44,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:18:44,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:18:44,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:18:44,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:18:44,218 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:18:44,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:18:44,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:18:44,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:18:44,218 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca [2025-02-08 08:18:44,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:18:44,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:18:44,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:18:44,519 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:18:44,520 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:18:44,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2025-02-08 08:18:45,823 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/50fb8ac92/95bed36828c3441cbe2aa06e662348f5/FLAG2df0683f1 [2025-02-08 08:18:46,808 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:18:46,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2025-02-08 08:18:46,821 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/50fb8ac92/95bed36828c3441cbe2aa06e662348f5/FLAG2df0683f1 [2025-02-08 08:18:46,844 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/50fb8ac92/95bed36828c3441cbe2aa06e662348f5 [2025-02-08 08:18:46,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:18:46,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:18:46,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:18:46,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:18:46,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:18:46,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:18:46" (1/1) ... [2025-02-08 08:18:46,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76afaac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:46, skipping insertion in model container [2025-02-08 08:18:46,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:18:46" (1/1) ... [2025-02-08 08:18:46,888 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:18:47,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:18:47,184 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:18:47,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:18:47,293 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:18:47,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47 WrapperNode [2025-02-08 08:18:47,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:18:47,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:18:47,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:18:47,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:18:47,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,311 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,331 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 134 [2025-02-08 08:18:47,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:18:47,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:18:47,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:18:47,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:18:47,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,360 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]. [2025-02-08 08:18:47,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:18:47,376 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:18:47,376 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:18:47,376 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:18:47,377 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (1/1) ... [2025-02-08 08:18:47,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:18:47,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:18:47,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:18:47,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:18:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:18:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:18:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:18:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:18:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:18:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:18:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:18:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:18:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 08:18:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 08:18:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:18:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:18:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:18:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:18:47,447 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:18:47,593 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:18:47,595 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:18:47,948 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:18:47,948 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:18:48,215 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:18:48,216 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:18:48,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:18:48 BoogieIcfgContainer [2025-02-08 08:18:48,217 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:18:48,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:18:48,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:18:48,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:18:48,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:18:46" (1/3) ... [2025-02-08 08:18:48,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3188fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:18:48, skipping insertion in model container [2025-02-08 08:18:48,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:18:47" (2/3) ... [2025-02-08 08:18:48,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3188fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:18:48, skipping insertion in model container [2025-02-08 08:18:48,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:18:48" (3/3) ... [2025-02-08 08:18:48,230 INFO L128 eAbstractionObserver]: Analyzing ICFG mix036_power.opt_rmo.opt.i [2025-02-08 08:18:48,243 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:18:48,248 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix036_power.opt_rmo.opt.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-08 08:18:48,248 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:18:48,311 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:18:48,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2025-02-08 08:18:48,383 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2025-02-08 08:18:48,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:18:48,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2025-02-08 08:18:48,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2025-02-08 08:18:48,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2025-02-08 08:18:48,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:18:48,417 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;@7184b741, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:18:48,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-08 08:18:48,428 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:18:48,429 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2025-02-08 08:18:48,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:18:48,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:18:48,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:18:48,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:18:48,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:18:48,437 INFO L85 PathProgramCache]: Analyzing trace with hash -502144769, now seen corresponding path program 1 times [2025-02-08 08:18:48,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:18:48,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522118701] [2025-02-08 08:18:48,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:18:48,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:18:48,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 08:18:48,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 08:18:48,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:18:48,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:18:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:18:48,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:18:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522118701] [2025-02-08 08:18:48,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522118701] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:18:48,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:18:48,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:18:48,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664311475] [2025-02-08 08:18:48,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:18:48,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:18:48,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:18:49,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:18:49,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:18:49,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:18:49,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:18:49,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:18:49,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:18:49,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:18:54,987 INFO L124 PetriNetUnfolderBase]: 57803/76565 cut-off events. [2025-02-08 08:18:54,988 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2025-02-08 08:18:55,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152689 conditions, 76565 events. 57803/76565 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 2154. Compared 463861 event pairs, 7283 based on Foata normal form. 3420/79928 useless extension candidates. Maximal degree in co-relation 152677. Up to 65281 conditions per place. [2025-02-08 08:18:55,401 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2025-02-08 08:18:55,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 75 transitions, 299 flow [2025-02-08 08:18:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:18:55,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:18:55,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2025-02-08 08:18:55,413 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2025-02-08 08:18:55,414 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 108 transitions. [2025-02-08 08:18:55,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 75 transitions, 299 flow [2025-02-08 08:18:55,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 294 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:18:55,428 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2025-02-08 08:18:55,430 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2025-02-08 08:18:55,433 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2025-02-08 08:18:55,434 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2025-02-08 08:18:55,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:18:55,434 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:18:55,434 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:18:55,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:18:55,435 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:18:55,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:18:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash -582287903, now seen corresponding path program 1 times [2025-02-08 08:18:55,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:18:55,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620538654] [2025-02-08 08:18:55,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:18:55,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:18:55,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:18:55,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:18:55,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:18:55,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:18:55,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:18:55,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:18:55,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620538654] [2025-02-08 08:18:55,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620538654] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:18:55,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:18:55,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:18:55,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356287549] [2025-02-08 08:18:55,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:18:55,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:18:55,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:18:55,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:18:55,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:18:55,546 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-02-08 08:18:55,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:18:55,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:18:55,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-02-08 08:18:55,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:18:59,836 INFO L124 PetriNetUnfolderBase]: 51971/72409 cut-off events. [2025-02-08 08:18:59,836 INFO L125 PetriNetUnfolderBase]: For 2664/2664 co-relation queries the response was YES. [2025-02-08 08:18:59,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143635 conditions, 72409 events. 51971/72409 cut-off events. For 2664/2664 co-relation queries the response was YES. Maximal size of possible extension queue 2166. Compared 473897 event pairs, 51971 based on Foata normal form. 1728/73891 useless extension candidates. Maximal degree in co-relation 143625. Up to 68040 conditions per place. [2025-02-08 08:19:00,239 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 36 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2025-02-08 08:19:00,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 178 flow [2025-02-08 08:19:00,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:19:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:19:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-02-08 08:19:00,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43636363636363634 [2025-02-08 08:19:00,242 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 72 transitions. [2025-02-08 08:19:00,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 178 flow [2025-02-08 08:19:00,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:19:00,250 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2025-02-08 08:19:00,250 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2025-02-08 08:19:00,250 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2025-02-08 08:19:00,251 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2025-02-08 08:19:00,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:00,251 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:19:00,251 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:19:00,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:19:00,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:19:00,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:19:00,253 INFO L85 PathProgramCache]: Analyzing trace with hash -582287751, now seen corresponding path program 1 times [2025-02-08 08:19:00,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:19:00,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759368986] [2025-02-08 08:19:00,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:19:00,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:19:00,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:19:00,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:19:00,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:19:00,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:19:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:19:00,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:19:00,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759368986] [2025-02-08 08:19:00,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759368986] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:19:00,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:19:00,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:19:00,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516417632] [2025-02-08 08:19:00,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:19:00,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:19:00,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:19:00,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:19:00,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:19:00,586 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-02-08 08:19:00,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:00,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:19:00,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-02-08 08:19:00,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:19:05,036 INFO L124 PetriNetUnfolderBase]: 59315/80185 cut-off events. [2025-02-08 08:19:05,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:19:05,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158683 conditions, 80185 events. 59315/80185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2211. Compared 493087 event pairs, 13415 based on Foata normal form. 0/79075 useless extension candidates. Maximal degree in co-relation 158677. Up to 37153 conditions per place. [2025-02-08 08:19:05,462 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 54 selfloop transitions, 2 changer transitions 99/161 dead transitions. [2025-02-08 08:19:05,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 161 transitions, 642 flow [2025-02-08 08:19:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:19:05,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:19:05,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 245 transitions. [2025-02-08 08:19:05,464 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5568181818181818 [2025-02-08 08:19:05,464 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 8 states and 245 transitions. [2025-02-08 08:19:05,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 161 transitions, 642 flow [2025-02-08 08:19:05,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 161 transitions, 641 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:19:05,468 INFO L231 Difference]: Finished difference. Result has 66 places, 43 transitions, 111 flow [2025-02-08 08:19:05,469 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=111, PETRI_PLACES=66, PETRI_TRANSITIONS=43} [2025-02-08 08:19:05,469 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2025-02-08 08:19:05,469 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 43 transitions, 111 flow [2025-02-08 08:19:05,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:05,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:19:05,470 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] [2025-02-08 08:19:05,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:19:05,470 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:19:05,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:19:05,470 INFO L85 PathProgramCache]: Analyzing trace with hash 590583129, now seen corresponding path program 1 times [2025-02-08 08:19:05,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:19:05,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517773655] [2025-02-08 08:19:05,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:19:05,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:19:05,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:19:05,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:19:05,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:19:05,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:19:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:19:05,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:19:05,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517773655] [2025-02-08 08:19:05,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517773655] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:19:05,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:19:05,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:19:05,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352767559] [2025-02-08 08:19:05,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:19:05,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:19:05,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:19:05,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:19:05,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:19:05,690 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:19:05,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 43 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:05,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:19:05,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:19:05,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:19:08,509 INFO L124 PetriNetUnfolderBase]: 36911/51125 cut-off events. [2025-02-08 08:19:08,510 INFO L125 PetriNetUnfolderBase]: For 2688/2688 co-relation queries the response was YES. [2025-02-08 08:19:08,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107609 conditions, 51125 events. 36911/51125 cut-off events. For 2688/2688 co-relation queries the response was YES. Maximal size of possible extension queue 1403. Compared 318383 event pairs, 5075 based on Foata normal form. 1728/52839 useless extension candidates. Maximal degree in co-relation 107597. Up to 27973 conditions per place. [2025-02-08 08:19:09,018 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 6 changer transitions 1/91 dead transitions. [2025-02-08 08:19:09,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 91 transitions, 389 flow [2025-02-08 08:19:09,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:19:09,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:19:09,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2025-02-08 08:19:09,020 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2025-02-08 08:19:09,020 INFO L175 Difference]: Start difference. First operand has 66 places, 43 transitions, 111 flow. Second operand 4 states and 135 transitions. [2025-02-08 08:19:09,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 91 transitions, 389 flow [2025-02-08 08:19:09,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 91 transitions, 373 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-02-08 08:19:09,538 INFO L231 Difference]: Finished difference. Result has 59 places, 47 transitions, 141 flow [2025-02-08 08:19:09,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2025-02-08 08:19:09,539 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2025-02-08 08:19:09,539 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 47 transitions, 141 flow [2025-02-08 08:19:09,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:09,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:19:09,540 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] [2025-02-08 08:19:09,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:19:09,540 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:19:09,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:19:09,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1545353854, now seen corresponding path program 1 times [2025-02-08 08:19:09,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:19:09,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482175679] [2025-02-08 08:19:09,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:19:09,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:19:09,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:19:09,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:19:09,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:19:09,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:19:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:19:09,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:19:09,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482175679] [2025-02-08 08:19:09,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482175679] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:19:09,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:19:09,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:19:09,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996106925] [2025-02-08 08:19:09,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:19:09,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:19:09,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:19:09,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:19:09,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:19:09,783 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:19:09,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 141 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:09,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:19:09,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:19:09,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:19:12,009 INFO L124 PetriNetUnfolderBase]: 24319/33957 cut-off events. [2025-02-08 08:19:12,010 INFO L125 PetriNetUnfolderBase]: For 6930/6930 co-relation queries the response was YES. [2025-02-08 08:19:12,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77975 conditions, 33957 events. 24319/33957 cut-off events. For 6930/6930 co-relation queries the response was YES. Maximal size of possible extension queue 828. Compared 200428 event pairs, 2975 based on Foata normal form. 1344/35287 useless extension candidates. Maximal degree in co-relation 77965. Up to 12853 conditions per place. [2025-02-08 08:19:12,231 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 101 selfloop transitions, 10 changer transitions 1/118 dead transitions. [2025-02-08 08:19:12,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 118 transitions, 539 flow [2025-02-08 08:19:12,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:19:12,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:19:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2025-02-08 08:19:12,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6327272727272727 [2025-02-08 08:19:12,232 INFO L175 Difference]: Start difference. First operand has 59 places, 47 transitions, 141 flow. Second operand 5 states and 174 transitions. [2025-02-08 08:19:12,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 118 transitions, 539 flow [2025-02-08 08:19:12,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 118 transitions, 528 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 08:19:12,245 INFO L231 Difference]: Finished difference. Result has 63 places, 51 transitions, 193 flow [2025-02-08 08:19:12,246 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2025-02-08 08:19:12,246 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2025-02-08 08:19:12,246 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 193 flow [2025-02-08 08:19:12,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:12,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:19:12,247 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] [2025-02-08 08:19:12,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:19:12,247 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:19:12,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:19:12,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1353844417, now seen corresponding path program 1 times [2025-02-08 08:19:12,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:19:12,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972083609] [2025-02-08 08:19:12,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:19:12,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:19:12,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 08:19:12,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 08:19:12,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:19:12,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:19:12,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:19:12,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:19:12,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972083609] [2025-02-08 08:19:12,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972083609] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:19:12,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:19:12,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:19:12,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141384475] [2025-02-08 08:19:12,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:19:12,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:19:12,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:19:12,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:19:12,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:19:12,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-02-08 08:19:12,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2025-02-08 08:19:12,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:19:12,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-02-08 08:19:12,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:19:14,996 INFO L124 PetriNetUnfolderBase]: 31215/43384 cut-off events. [2025-02-08 08:19:14,996 INFO L125 PetriNetUnfolderBase]: For 23952/23952 co-relation queries the response was YES. [2025-02-08 08:19:15,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107754 conditions, 43384 events. 31215/43384 cut-off events. For 23952/23952 co-relation queries the response was YES. Maximal size of possible extension queue 1027. Compared 262223 event pairs, 6375 based on Foata normal form. 368/43746 useless extension candidates. Maximal degree in co-relation 107742. Up to 24310 conditions per place. [2025-02-08 08:19:15,322 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 98 selfloop transitions, 2 changer transitions 48/154 dead transitions. [2025-02-08 08:19:15,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 154 transitions, 870 flow [2025-02-08 08:19:15,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:19:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:19:15,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 193 transitions. [2025-02-08 08:19:15,323 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5848484848484848 [2025-02-08 08:19:15,324 INFO L175 Difference]: Start difference. First operand has 63 places, 51 transitions, 193 flow. Second operand 6 states and 193 transitions. [2025-02-08 08:19:15,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 154 transitions, 870 flow [2025-02-08 08:19:15,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 154 transitions, 798 flow, removed 14 selfloop flow, removed 4 redundant places. [2025-02-08 08:19:15,470 INFO L231 Difference]: Finished difference. Result has 68 places, 52 transitions, 183 flow [2025-02-08 08:19:15,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=183, PETRI_PLACES=68, PETRI_TRANSITIONS=52} [2025-02-08 08:19:15,472 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 6 predicate places. [2025-02-08 08:19:15,472 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 52 transitions, 183 flow [2025-02-08 08:19:15,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2025-02-08 08:19:15,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:19:15,473 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] [2025-02-08 08:19:15,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:19:15,473 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:19:15,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:19:15,473 INFO L85 PathProgramCache]: Analyzing trace with hash -578462929, now seen corresponding path program 2 times [2025-02-08 08:19:15,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:19:15,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907673113] [2025-02-08 08:19:15,474 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:19:15,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:19:15,484 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 1 equivalence classes. [2025-02-08 08:19:15,526 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 08:19:15,526 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:19:15,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:19:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:19:15,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:19:15,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907673113] [2025-02-08 08:19:15,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907673113] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:19:15,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:19:15,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:19:15,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845279023] [2025-02-08 08:19:15,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:19:15,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:19:15,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:19:15,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:19:15,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:19:15,734 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-02-08 08:19:15,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 52 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:15,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:19:15,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-02-08 08:19:15,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:19:17,730 INFO L124 PetriNetUnfolderBase]: 20879/29021 cut-off events. [2025-02-08 08:19:17,731 INFO L125 PetriNetUnfolderBase]: For 12980/12980 co-relation queries the response was YES. [2025-02-08 08:19:17,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70201 conditions, 29021 events. 20879/29021 cut-off events. For 12980/12980 co-relation queries the response was YES. Maximal size of possible extension queue 759. Compared 165009 event pairs, 3219 based on Foata normal form. 1008/30015 useless extension candidates. Maximal degree in co-relation 70187. Up to 8732 conditions per place. [2025-02-08 08:19:17,923 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 121 selfloop transitions, 14 changer transitions 5/146 dead transitions. [2025-02-08 08:19:17,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 146 transitions, 732 flow [2025-02-08 08:19:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:19:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:19:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2025-02-08 08:19:17,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6393939393939394 [2025-02-08 08:19:17,925 INFO L175 Difference]: Start difference. First operand has 68 places, 52 transitions, 183 flow. Second operand 6 states and 211 transitions. [2025-02-08 08:19:17,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 146 transitions, 732 flow [2025-02-08 08:19:17,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 146 transitions, 723 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-02-08 08:19:17,939 INFO L231 Difference]: Finished difference. Result has 70 places, 56 transitions, 255 flow [2025-02-08 08:19:17,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=255, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2025-02-08 08:19:17,940 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2025-02-08 08:19:17,940 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 255 flow [2025-02-08 08:19:17,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:17,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:19:17,940 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:19:17,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:19:17,941 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:19:17,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:19:17,941 INFO L85 PathProgramCache]: Analyzing trace with hash 400051644, now seen corresponding path program 1 times [2025-02-08 08:19:17,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:19:17,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050380928] [2025-02-08 08:19:17,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:19:17,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:19:17,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-08 08:19:17,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 08:19:17,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:19:17,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:19:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:19:18,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:19:18,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050380928] [2025-02-08 08:19:18,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050380928] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:19:18,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:19:18,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:19:18,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439599920] [2025-02-08 08:19:18,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:19:18,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:19:18,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:19:18,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:19:18,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:19:18,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-02-08 08:19:18,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:19:18,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:19:18,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-02-08 08:19:18,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:19:21,124 INFO L124 PetriNetUnfolderBase]: 29341/40714 cut-off events. [2025-02-08 08:19:21,125 INFO L125 PetriNetUnfolderBase]: For 38646/38646 co-relation queries the response was YES. [2025-02-08 08:19:21,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109477 conditions, 40714 events. 29341/40714 cut-off events. For 38646/38646 co-relation queries the response was YES. Maximal size of possible extension queue 1038. Compared 242750 event pairs, 4827 based on Foata normal form. 144/40851 useless extension candidates. Maximal degree in co-relation 109462. Up to 21324 conditions per place.