./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.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/safe016_pso.oepc_pso.opt_tso.oepc_tso.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 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:24:53,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:24:53,120 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:24:53,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:24:53,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:24:53,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:24:53,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:24:53,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:24:53,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:24:53,159 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:24:53,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:24:53,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:24:53,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:24:53,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:24:53,161 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:24:53,162 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:24:53,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:24:53,162 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:24:53,162 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 -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2025-02-08 08:24:53,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:24:53,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:24:53,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:24:53,503 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:24:53,504 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:24:53,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:24:54,832 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0faa114c2/ae161976492249c6aaea1b1a4639b93c/FLAG730391a5c [2025-02-08 08:24:55,198 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:24:55,198 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:24:55,219 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0faa114c2/ae161976492249c6aaea1b1a4639b93c/FLAG730391a5c [2025-02-08 08:24:55,246 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0faa114c2/ae161976492249c6aaea1b1a4639b93c [2025-02-08 08:24:55,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:24:55,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:24:55,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:24:55,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:24:55,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:24:55,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608424ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55, skipping insertion in model container [2025-02-08 08:24:55,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:24:55,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:24:55,625 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:24:55,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:24:55,699 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:24:55,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55 WrapperNode [2025-02-08 08:24:55,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:24:55,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:24:55,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:24:55,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:24:55,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,744 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2025-02-08 08:24:55,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:24:55,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:24:55,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:24:55,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:24:55,752 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,767 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 08:24:55,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,772 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:24:55,778 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:24:55,779 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:24:55,779 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:24:55,780 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (1/1) ... [2025-02-08 08:24:55,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:24:55,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:24:55,815 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 08:24:55,818 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 08:24:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:24:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:24:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:24:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:24:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:24:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:24:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:24:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:24:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 08:24:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 08:24:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:24:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:24:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:24:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:24:55,839 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 08:24:55,949 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:24:55,952 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:24:56,193 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:24:56,196 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:24:56,298 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:24:56,301 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:24:56,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:24:56 BoogieIcfgContainer [2025-02-08 08:24:56,302 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:24:56,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:24:56,304 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:24:56,308 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:24:56,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:24:55" (1/3) ... [2025-02-08 08:24:56,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530c8099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:24:56, skipping insertion in model container [2025-02-08 08:24:56,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:55" (2/3) ... [2025-02-08 08:24:56,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530c8099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:24:56, skipping insertion in model container [2025-02-08 08:24:56,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:24:56" (3/3) ... [2025-02-08 08:24:56,312 INFO L128 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:24:56,329 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:24:56,331 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 49 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:24:56,332 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:24:56,389 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:24:56,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2025-02-08 08:24:56,465 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2025-02-08 08:24:56,467 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:24:56,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2025-02-08 08:24:56,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2025-02-08 08:24:56,475 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2025-02-08 08:24:56,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:24:56,504 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;@44ed30df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:24:56,504 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-08 08:24:56,525 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:24:56,525 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2025-02-08 08:24:56,525 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:24:56,526 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:56,528 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 08:24:56,529 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:24:56,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:56,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1219463676, now seen corresponding path program 1 times [2025-02-08 08:24:56,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:56,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530340122] [2025-02-08 08:24:56,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:56,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:56,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:24:56,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:24:56,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:56,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:56,813 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 08:24:56,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:56,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530340122] [2025-02-08 08:24:56,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530340122] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:56,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:56,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:24:56,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370170903] [2025-02-08 08:24:56,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:56,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:24:56,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:56,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:24:56,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:24:56,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:24:56,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 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 08:24:56,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:56,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:24:56,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:00,227 INFO L124 PetriNetUnfolderBase]: 26557/37829 cut-off events. [2025-02-08 08:25:00,228 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2025-02-08 08:25:00,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73359 conditions, 37829 events. 26557/37829 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 1244. Compared 241499 event pairs, 26557 based on Foata normal form. 2700/40472 useless extension candidates. Maximal degree in co-relation 73347. Up to 35090 conditions per place. [2025-02-08 08:25:00,546 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 32 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2025-02-08 08:25:00,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 162 flow [2025-02-08 08:25:00,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:25:00,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:25:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-02-08 08:25:00,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2025-02-08 08:25:00,564 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 70 transitions. [2025-02-08 08:25:00,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 162 flow [2025-02-08 08:25:00,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 158 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:25:00,575 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2025-02-08 08:25:00,578 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2025-02-08 08:25:00,581 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2025-02-08 08:25:00,581 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2025-02-08 08:25:00,582 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 08:25:00,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:00,582 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 08:25:00,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:25:00,582 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:25:00,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:00,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1219463730, now seen corresponding path program 1 times [2025-02-08 08:25:00,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:00,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84491901] [2025-02-08 08:25:00,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:00,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:00,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:25:00,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:25:00,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:00,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:00,922 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 08:25:00,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:00,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84491901] [2025-02-08 08:25:00,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84491901] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:00,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:00,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:25:00,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117610251] [2025-02-08 08:25:00,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:00,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:25:00,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:00,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:25:00,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:25:00,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:25:00,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 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 08:25:00,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:00,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:25:00,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:05,420 INFO L124 PetriNetUnfolderBase]: 63538/86198 cut-off events. [2025-02-08 08:25:05,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:25:05,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171323 conditions, 86198 events. 63538/86198 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2525. Compared 546487 event pairs, 16145 based on Foata normal form. 0/84438 useless extension candidates. Maximal degree in co-relation 171317. Up to 31940 conditions per place. [2025-02-08 08:25:05,816 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 56 selfloop transitions, 7 changer transitions 115/184 dead transitions. [2025-02-08 08:25:05,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 184 transitions, 740 flow [2025-02-08 08:25:05,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:25:05,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:25:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 279 transitions. [2025-02-08 08:25:05,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.62 [2025-02-08 08:25:05,819 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 9 states and 279 transitions. [2025-02-08 08:25:05,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 184 transitions, 740 flow [2025-02-08 08:25:05,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 184 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:25:05,826 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 185 flow [2025-02-08 08:25:05,826 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=185, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2025-02-08 08:25:05,827 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2025-02-08 08:25:05,827 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 185 flow [2025-02-08 08:25:05,827 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 08:25:05,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:05,828 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:05,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:25:05,828 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:25:05,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:05,829 INFO L85 PathProgramCache]: Analyzing trace with hash 999001837, now seen corresponding path program 1 times [2025-02-08 08:25:05,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:05,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926752391] [2025-02-08 08:25:05,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:05,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:05,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:25:05,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:25:05,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:05,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:06,063 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 08:25:06,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:06,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926752391] [2025-02-08 08:25:06,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926752391] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:06,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:06,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:25:06,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562010471] [2025-02-08 08:25:06,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:06,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:06,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:06,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:06,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:06,067 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:25:06,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 185 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) [2025-02-08 08:25:06,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:06,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:25:06,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:09,586 INFO L124 PetriNetUnfolderBase]: 49367/67532 cut-off events. [2025-02-08 08:25:09,587 INFO L125 PetriNetUnfolderBase]: For 92371/92371 co-relation queries the response was YES. [2025-02-08 08:25:09,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189782 conditions, 67532 events. 49367/67532 cut-off events. For 92371/92371 co-relation queries the response was YES. Maximal size of possible extension queue 1967. Compared 421716 event pairs, 4786 based on Foata normal form. 1634/69121 useless extension candidates. Maximal degree in co-relation 189767. Up to 26979 conditions per place. [2025-02-08 08:25:09,961 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 73 selfloop transitions, 8 changer transitions 106/193 dead transitions. [2025-02-08 08:25:09,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 193 transitions, 1137 flow [2025-02-08 08:25:09,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:25:09,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:25:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 290 transitions. [2025-02-08 08:25:09,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.58 [2025-02-08 08:25:09,964 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 185 flow. Second operand 10 states and 290 transitions. [2025-02-08 08:25:09,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 193 transitions, 1137 flow [2025-02-08 08:25:10,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 193 transitions, 1025 flow, removed 27 selfloop flow, removed 4 redundant places. [2025-02-08 08:25:10,723 INFO L231 Difference]: Finished difference. Result has 73 places, 49 transitions, 245 flow [2025-02-08 08:25:10,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=245, PETRI_PLACES=73, PETRI_TRANSITIONS=49} [2025-02-08 08:25:10,725 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2025-02-08 08:25:10,725 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 49 transitions, 245 flow [2025-02-08 08:25:10,725 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) [2025-02-08 08:25:10,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:10,725 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:10,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:25:10,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:25:10,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:10,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1808438899, now seen corresponding path program 1 times [2025-02-08 08:25:10,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:10,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525653412] [2025-02-08 08:25:10,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:10,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:10,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:25:10,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:25:10,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:10,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:10,936 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 08:25:10,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:10,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525653412] [2025-02-08 08:25:10,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525653412] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:10,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:10,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:25:10,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928206086] [2025-02-08 08:25:10,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:10,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:10,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:10,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:10,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:10,940 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:25:10,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 49 transitions, 245 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) [2025-02-08 08:25:10,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:10,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:25:10,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:14,730 INFO L124 PetriNetUnfolderBase]: 47002/64320 cut-off events. [2025-02-08 08:25:14,731 INFO L125 PetriNetUnfolderBase]: For 148616/148628 co-relation queries the response was YES. [2025-02-08 08:25:14,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193981 conditions, 64320 events. 47002/64320 cut-off events. For 148616/148628 co-relation queries the response was YES. Maximal size of possible extension queue 1820. Compared 399643 event pairs, 9155 based on Foata normal form. 1430/65741 useless extension candidates. Maximal degree in co-relation 193959. Up to 27929 conditions per place. [2025-02-08 08:25:15,171 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 79 selfloop transitions, 16 changer transitions 102/203 dead transitions. [2025-02-08 08:25:15,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 203 transitions, 1333 flow [2025-02-08 08:25:15,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:25:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:25:15,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 290 transitions. [2025-02-08 08:25:15,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.58 [2025-02-08 08:25:15,175 INFO L175 Difference]: Start difference. First operand has 73 places, 49 transitions, 245 flow. Second operand 10 states and 290 transitions. [2025-02-08 08:25:15,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 203 transitions, 1333 flow [2025-02-08 08:25:16,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 203 transitions, 1286 flow, removed 21 selfloop flow, removed 3 redundant places. [2025-02-08 08:25:16,009 INFO L231 Difference]: Finished difference. Result has 82 places, 60 transitions, 435 flow [2025-02-08 08:25:16,009 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=435, PETRI_PLACES=82, PETRI_TRANSITIONS=60} [2025-02-08 08:25:16,010 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places. [2025-02-08 08:25:16,010 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 60 transitions, 435 flow [2025-02-08 08:25:16,010 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) [2025-02-08 08:25:16,010 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:16,010 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 08:25:16,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:25:16,011 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:25:16,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:16,011 INFO L85 PathProgramCache]: Analyzing trace with hash -554672596, now seen corresponding path program 1 times [2025-02-08 08:25:16,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:16,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844288684] [2025-02-08 08:25:16,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:16,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:16,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:25:16,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:25:16,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:16,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:16,167 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 08:25:16,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:16,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844288684] [2025-02-08 08:25:16,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844288684] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:16,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:16,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:25:16,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035962910] [2025-02-08 08:25:16,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:16,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:16,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:16,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:16,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:16,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:25:16,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 60 transitions, 435 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) [2025-02-08 08:25:16,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:16,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:25:16,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:19,654 INFO L124 PetriNetUnfolderBase]: 43345/59232 cut-off events. [2025-02-08 08:25:19,654 INFO L125 PetriNetUnfolderBase]: For 197356/197356 co-relation queries the response was YES. [2025-02-08 08:25:19,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194412 conditions, 59232 events. 43345/59232 cut-off events. For 197356/197356 co-relation queries the response was YES. Maximal size of possible extension queue 1537. Compared 359279 event pairs, 10200 based on Foata normal form. 1080/60300 useless extension candidates. Maximal degree in co-relation 194382. Up to 24762 conditions per place. [2025-02-08 08:25:20,104 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 87 selfloop transitions, 18 changer transitions 92/203 dead transitions. [2025-02-08 08:25:20,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 203 transitions, 1454 flow [2025-02-08 08:25:20,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:25:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:25:20,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 286 transitions. [2025-02-08 08:25:20,110 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.572 [2025-02-08 08:25:20,110 INFO L175 Difference]: Start difference. First operand has 82 places, 60 transitions, 435 flow. Second operand 10 states and 286 transitions. [2025-02-08 08:25:20,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 203 transitions, 1454 flow [2025-02-08 08:25:21,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 203 transitions, 1394 flow, removed 30 selfloop flow, removed 4 redundant places. [2025-02-08 08:25:21,466 INFO L231 Difference]: Finished difference. Result has 90 places, 65 transitions, 563 flow [2025-02-08 08:25:21,466 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=563, PETRI_PLACES=90, PETRI_TRANSITIONS=65} [2025-02-08 08:25:21,467 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 34 predicate places. [2025-02-08 08:25:21,467 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 65 transitions, 563 flow [2025-02-08 08:25:21,467 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) [2025-02-08 08:25:21,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:21,468 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] [2025-02-08 08:25:21,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:25:21,468 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:25:21,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:21,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1428671010, now seen corresponding path program 1 times [2025-02-08 08:25:21,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:21,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925952181] [2025-02-08 08:25:21,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:21,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:21,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:25:21,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:25:21,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:21,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:21,630 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 08:25:21,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:21,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925952181] [2025-02-08 08:25:21,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925952181] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:21,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:21,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:25:21,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715989591] [2025-02-08 08:25:21,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:21,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:21,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:21,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:21,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:21,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:25:21,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 65 transitions, 563 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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 08:25:21,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:21,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:25:21,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:27,371 INFO L124 PetriNetUnfolderBase]: 60306/82153 cut-off events. [2025-02-08 08:25:27,372 INFO L125 PetriNetUnfolderBase]: For 346702/346702 co-relation queries the response was YES. [2025-02-08 08:25:27,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272738 conditions, 82153 events. 60306/82153 cut-off events. For 346702/346702 co-relation queries the response was YES. Maximal size of possible extension queue 2144. Compared 515831 event pairs, 11574 based on Foata normal form. 1540/83663 useless extension candidates. Maximal degree in co-relation 272701. Up to 31721 conditions per place. [2025-02-08 08:25:28,024 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 85 selfloop transitions, 25 changer transitions 93/209 dead transitions. [2025-02-08 08:25:28,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 209 transitions, 1592 flow [2025-02-08 08:25:28,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:25:28,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:25:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 291 transitions. [2025-02-08 08:25:28,026 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.582 [2025-02-08 08:25:28,026 INFO L175 Difference]: Start difference. First operand has 90 places, 65 transitions, 563 flow. Second operand 10 states and 291 transitions. [2025-02-08 08:25:28,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 209 transitions, 1592 flow [2025-02-08 08:25:30,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 209 transitions, 1507 flow, removed 40 selfloop flow, removed 7 redundant places. [2025-02-08 08:25:30,687 INFO L231 Difference]: Finished difference. Result has 95 places, 66 transitions, 668 flow [2025-02-08 08:25:30,687 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=668, PETRI_PLACES=95, PETRI_TRANSITIONS=66} [2025-02-08 08:25:30,688 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 39 predicate places. [2025-02-08 08:25:30,688 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 66 transitions, 668 flow [2025-02-08 08:25:30,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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 08:25:30,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:30,688 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] [2025-02-08 08:25:30,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:25:30,689 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:25:30,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:30,689 INFO L85 PathProgramCache]: Analyzing trace with hash 563663545, now seen corresponding path program 1 times [2025-02-08 08:25:30,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:30,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073072882] [2025-02-08 08:25:30,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:30,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:30,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:25:30,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:25:30,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:30,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:30,825 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 08:25:30,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:30,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073072882] [2025-02-08 08:25:30,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073072882] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:30,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:30,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:25:30,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681247168] [2025-02-08 08:25:30,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:30,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:30,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:30,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:30,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:30,831 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:25:30,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 66 transitions, 668 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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 08:25:30,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:30,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:25:30,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:35,798 INFO L124 PetriNetUnfolderBase]: 55465/76350 cut-off events. [2025-02-08 08:25:35,798 INFO L125 PetriNetUnfolderBase]: For 406498/406498 co-relation queries the response was YES. [2025-02-08 08:25:36,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260902 conditions, 76350 events. 55465/76350 cut-off events. For 406498/406498 co-relation queries the response was YES. Maximal size of possible extension queue 1976. Compared 481127 event pairs, 3872 based on Foata normal form. 1540/77846 useless extension candidates. Maximal degree in co-relation 260861. Up to 32886 conditions per place. [2025-02-08 08:25:36,446 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 78 selfloop transitions, 31 changer transitions 89/204 dead transitions. [2025-02-08 08:25:36,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 204 transitions, 2043 flow [2025-02-08 08:25:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:25:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:25:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 270 transitions. [2025-02-08 08:25:36,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.54 [2025-02-08 08:25:36,448 INFO L175 Difference]: Start difference. First operand has 95 places, 66 transitions, 668 flow. Second operand 10 states and 270 transitions. [2025-02-08 08:25:36,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 204 transitions, 2043 flow [2025-02-08 08:25:38,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 204 transitions, 1991 flow, removed 26 selfloop flow, removed 7 redundant places. [2025-02-08 08:25:38,022 INFO L231 Difference]: Finished difference. Result has 100 places, 79 transitions, 1027 flow [2025-02-08 08:25:38,023 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1027, PETRI_PLACES=100, PETRI_TRANSITIONS=79} [2025-02-08 08:25:38,023 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 44 predicate places. [2025-02-08 08:25:38,023 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 79 transitions, 1027 flow [2025-02-08 08:25:38,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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 08:25:38,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:38,024 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 08:25:38,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:25:38,024 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:25:38,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1941038694, now seen corresponding path program 1 times [2025-02-08 08:25:38,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:38,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987922104] [2025-02-08 08:25:38,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:38,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:38,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:25:38,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:25:38,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:38,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:38,208 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 08:25:38,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:38,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987922104] [2025-02-08 08:25:38,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987922104] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:38,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:38,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:25:38,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593885462] [2025-02-08 08:25:38,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:38,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:25:38,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:38,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:25:38,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:25:38,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:25:38,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 79 transitions, 1027 flow. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 08:25:38,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:38,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:25:38,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand