./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:21:09,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:21:09,874 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:21:09,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:21:09,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:21:09,907 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:21:09,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:21:09,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:21:09,908 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:21:09,909 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:21:09,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:21:09,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:21:09,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:21:09,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:21:09,910 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:21:09,911 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:21:09,911 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:21:09,912 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:21:09,912 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:21:09,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:21:09,913 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:21:09,913 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:21:09,913 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:21:09,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:21:09,914 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:21:09,915 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:21:09,915 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:21:09,915 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:21:09,919 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:21:09,919 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:21:09,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:21:09,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:21:09,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:21:09,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:21:09,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:21:09,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:21:09,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:21:09,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:21:09,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:21:09,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:21:09,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:21:09,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:21:09,922 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad [2024-11-17 03:21:10,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:21:10,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:21:10,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:21:10,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:21:10,182 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:21:10,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:21:11,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:21:11,910 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:21:11,911 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:21:11,924 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf74a5ed/dcbc05f3e1df40339eb04389e2c867bd/FLAGd41af3a71 [2024-11-17 03:21:12,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf74a5ed/dcbc05f3e1df40339eb04389e2c867bd [2024-11-17 03:21:12,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:21:12,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:21:12,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:21:12,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:21:12,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:21:12,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b44b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12, skipping insertion in model container [2024-11-17 03:21:12,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,286 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:21:12,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:21:12,663 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:21:12,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:21:12,756 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:21:12,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12 WrapperNode [2024-11-17 03:21:12,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:21:12,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:21:12,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:21:12,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:21:12,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,809 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-17 03:21:12,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:21:12,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:21:12,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:21:12,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:21:12,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,854 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]. [2024-11-17 03:21:12,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,864 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:21:12,877 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:21:12,877 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:21:12,878 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:21:12,879 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (1/1) ... [2024-11-17 03:21:12,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:21:12,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:21:12,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:21:12,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:21:12,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:21:12,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:21:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:21:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:21:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:21:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:21:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:21:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:21:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:21:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:21:12,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:21:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:21:12,973 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:21:13,083 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:21:13,086 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:21:13,240 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:21:13,240 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:21:13,330 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:21:13,330 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:21:13,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:21:13 BoogieIcfgContainer [2024-11-17 03:21:13,331 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:21:13,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:21:13,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:21:13,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:21:13,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:21:12" (1/3) ... [2024-11-17 03:21:13,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61900d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:21:13, skipping insertion in model container [2024-11-17 03:21:13,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:12" (2/3) ... [2024-11-17 03:21:13,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61900d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:21:13, skipping insertion in model container [2024-11-17 03:21:13,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:21:13" (3/3) ... [2024-11-17 03:21:13,341 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:21:13,354 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:21:13,355 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:21:13,355 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:21:13,402 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:21:13,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 42 transitions, 96 flow [2024-11-17 03:21:13,466 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-11-17 03:21:13,467 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:21:13,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 2/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-17 03:21:13,470 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 42 transitions, 96 flow [2024-11-17 03:21:13,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 38 transitions, 85 flow [2024-11-17 03:21:13,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:21:13,499 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;@62b2b0a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:21:13,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-17 03:21:13,520 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:21:13,520 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2024-11-17 03:21:13,520 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:21:13,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:13,521 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:13,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:13,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:13,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1554132466, now seen corresponding path program 1 times [2024-11-17 03:21:13,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:13,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111119165] [2024-11-17 03:21:13,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:13,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:13,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:13,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111119165] [2024-11-17 03:21:13,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111119165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:13,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:13,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:21:13,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263286619] [2024-11-17 03:21:13,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:13,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:21:13,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:13,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:21:13,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:21:13,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-11-17 03:21:13,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:13,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:13,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-11-17 03:21:13,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:14,666 INFO L124 PetriNetUnfolderBase]: 3925/6137 cut-off events. [2024-11-17 03:21:14,666 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-17 03:21:14,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11834 conditions, 6137 events. 3925/6137 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 35562 event pairs, 3925 based on Foata normal form. 540/6636 useless extension candidates. Maximal degree in co-relation 11823. Up to 5618 conditions per place. [2024-11-17 03:21:14,716 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 26 selfloop transitions, 1 changer transitions 1/34 dead transitions. [2024-11-17 03:21:14,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 133 flow [2024-11-17 03:21:14,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:21:14,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:21:14,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-11-17 03:21:14,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2024-11-17 03:21:14,729 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 85 flow. Second operand 3 states and 58 transitions. [2024-11-17 03:21:14,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 133 flow [2024-11-17 03:21:14,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 03:21:14,736 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 74 flow [2024-11-17 03:21:14,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2024-11-17 03:21:14,744 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2024-11-17 03:21:14,744 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 74 flow [2024-11-17 03:21:14,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:14,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:14,745 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:14,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:21:14,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:14,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:14,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1554132035, now seen corresponding path program 1 times [2024-11-17 03:21:14,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:14,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124372246] [2024-11-17 03:21:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:15,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:15,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124372246] [2024-11-17 03:21:15,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124372246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:15,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:15,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:21:15,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789403373] [2024-11-17 03:21:15,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:15,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:21:15,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:15,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:21:15,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:21:15,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-11-17 03:21:15,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:15,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:15,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-11-17 03:21:15,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:15,798 INFO L124 PetriNetUnfolderBase]: 5026/7593 cut-off events. [2024-11-17 03:21:15,798 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:21:15,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14910 conditions, 7593 events. 5026/7593 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 43822 event pairs, 1419 based on Foata normal form. 0/7414 useless extension candidates. Maximal degree in co-relation 14904. Up to 4876 conditions per place. [2024-11-17 03:21:15,834 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 38 selfloop transitions, 3 changer transitions 60/106 dead transitions. [2024-11-17 03:21:15,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 106 transitions, 426 flow [2024-11-17 03:21:15,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:21:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:21:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2024-11-17 03:21:15,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2024-11-17 03:21:15,837 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 74 flow. Second operand 8 states and 175 transitions. [2024-11-17 03:21:15,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 106 transitions, 426 flow [2024-11-17 03:21:15,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 106 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:21:15,842 INFO L231 Difference]: Finished difference. Result has 53 places, 34 transitions, 106 flow [2024-11-17 03:21:15,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=106, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2024-11-17 03:21:15,843 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 7 predicate places. [2024-11-17 03:21:15,844 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 34 transitions, 106 flow [2024-11-17 03:21:15,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:15,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:15,845 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:15,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:21:15,845 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:15,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:15,847 INFO L85 PathProgramCache]: Analyzing trace with hash -865950436, now seen corresponding path program 1 times [2024-11-17 03:21:15,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:15,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359411969] [2024-11-17 03:21:15,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:15,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:16,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:16,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359411969] [2024-11-17 03:21:16,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359411969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:16,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:16,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:16,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536500219] [2024-11-17 03:21:16,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:16,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:16,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:16,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:16,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-11-17 03:21:16,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 34 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:16,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:16,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-11-17 03:21:16,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:16,733 INFO L124 PetriNetUnfolderBase]: 3849/5881 cut-off events. [2024-11-17 03:21:16,734 INFO L125 PetriNetUnfolderBase]: For 2982/2982 co-relation queries the response was YES. [2024-11-17 03:21:16,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13861 conditions, 5881 events. 3849/5881 cut-off events. For 2982/2982 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 31927 event pairs, 684 based on Foata normal form. 150/6020 useless extension candidates. Maximal degree in co-relation 13849. Up to 4121 conditions per place. [2024-11-17 03:21:16,779 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 38 selfloop transitions, 3 changer transitions 45/91 dead transitions. [2024-11-17 03:21:16,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 91 transitions, 414 flow [2024-11-17 03:21:16,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:21:16,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:21:16,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 150 transitions. [2024-11-17 03:21:16,782 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2024-11-17 03:21:16,782 INFO L175 Difference]: Start difference. First operand has 53 places, 34 transitions, 106 flow. Second operand 7 states and 150 transitions. [2024-11-17 03:21:16,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 91 transitions, 414 flow [2024-11-17 03:21:16,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 91 transitions, 397 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-17 03:21:16,820 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 116 flow [2024-11-17 03:21:16,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=116, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2024-11-17 03:21:16,822 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2024-11-17 03:21:16,823 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 116 flow [2024-11-17 03:21:16,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:16,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:16,823 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:16,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:21:16,824 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:16,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:16,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1884647772, now seen corresponding path program 1 times [2024-11-17 03:21:16,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:16,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916583644] [2024-11-17 03:21:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:16,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:16,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916583644] [2024-11-17 03:21:16,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916583644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:16,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:16,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:16,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996929845] [2024-11-17 03:21:16,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:16,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:16,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:16,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:16,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:16,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-11-17 03:21:16,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 116 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:16,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:16,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-11-17 03:21:16,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:17,984 INFO L124 PetriNetUnfolderBase]: 6017/8993 cut-off events. [2024-11-17 03:21:17,984 INFO L125 PetriNetUnfolderBase]: For 6378/6378 co-relation queries the response was YES. [2024-11-17 03:21:18,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21683 conditions, 8993 events. 6017/8993 cut-off events. For 6378/6378 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 51059 event pairs, 1053 based on Foata normal form. 275/9265 useless extension candidates. Maximal degree in co-relation 21667. Up to 4049 conditions per place. [2024-11-17 03:21:18,030 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 68 selfloop transitions, 11 changer transitions 96/180 dead transitions. [2024-11-17 03:21:18,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 180 transitions, 864 flow [2024-11-17 03:21:18,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 03:21:18,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-17 03:21:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 294 transitions. [2024-11-17 03:21:18,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2024-11-17 03:21:18,036 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 116 flow. Second operand 13 states and 294 transitions. [2024-11-17 03:21:18,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 180 transitions, 864 flow [2024-11-17 03:21:18,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 180 transitions, 818 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-17 03:21:18,078 INFO L231 Difference]: Finished difference. Result has 68 places, 42 transitions, 212 flow [2024-11-17 03:21:18,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=212, PETRI_PLACES=68, PETRI_TRANSITIONS=42} [2024-11-17 03:21:18,079 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 22 predicate places. [2024-11-17 03:21:18,080 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 42 transitions, 212 flow [2024-11-17 03:21:18,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:18,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:18,080 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:18,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:21:18,081 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:18,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:18,081 INFO L85 PathProgramCache]: Analyzing trace with hash 851676683, now seen corresponding path program 1 times [2024-11-17 03:21:18,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:18,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949109828] [2024-11-17 03:21:18,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:18,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:18,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:18,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:18,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949109828] [2024-11-17 03:21:18,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949109828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:18,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:18,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:18,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183328344] [2024-11-17 03:21:18,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:18,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:18,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:18,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:18,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:18,209 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-11-17 03:21:18,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 42 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:18,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:18,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-11-17 03:21:18,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:19,298 INFO L124 PetriNetUnfolderBase]: 5722/8353 cut-off events. [2024-11-17 03:21:19,298 INFO L125 PetriNetUnfolderBase]: For 22049/22052 co-relation queries the response was YES. [2024-11-17 03:21:19,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25494 conditions, 8353 events. 5722/8353 cut-off events. For 22049/22052 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 46016 event pairs, 304 based on Foata normal form. 125/8471 useless extension candidates. Maximal degree in co-relation 25471. Up to 5445 conditions per place. [2024-11-17 03:21:19,348 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 78 selfloop transitions, 12 changer transitions 71/166 dead transitions. [2024-11-17 03:21:19,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 166 transitions, 1081 flow [2024-11-17 03:21:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 03:21:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-17 03:21:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 266 transitions. [2024-11-17 03:21:19,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2024-11-17 03:21:19,350 INFO L175 Difference]: Start difference. First operand has 68 places, 42 transitions, 212 flow. Second operand 13 states and 266 transitions. [2024-11-17 03:21:19,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 166 transitions, 1081 flow [2024-11-17 03:21:19,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 166 transitions, 961 flow, removed 60 selfloop flow, removed 6 redundant places. [2024-11-17 03:21:19,385 INFO L231 Difference]: Finished difference. Result has 77 places, 49 transitions, 327 flow [2024-11-17 03:21:19,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=327, PETRI_PLACES=77, PETRI_TRANSITIONS=49} [2024-11-17 03:21:19,386 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 31 predicate places. [2024-11-17 03:21:19,387 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 49 transitions, 327 flow [2024-11-17 03:21:19,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:19,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:19,387 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:19,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:21:19,388 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:19,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:19,388 INFO L85 PathProgramCache]: Analyzing trace with hash -15849277, now seen corresponding path program 1 times [2024-11-17 03:21:19,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:19,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409236658] [2024-11-17 03:21:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:19,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:19,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:19,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:19,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409236658] [2024-11-17 03:21:19,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409236658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:19,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:19,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:19,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139519713] [2024-11-17 03:21:19,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:19,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:19,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:19,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:19,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:19,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-11-17 03:21:19,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 49 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:19,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:19,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-11-17 03:21:19,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:20,374 INFO L124 PetriNetUnfolderBase]: 4377/6591 cut-off events. [2024-11-17 03:21:20,374 INFO L125 PetriNetUnfolderBase]: For 27477/27477 co-relation queries the response was YES. [2024-11-17 03:21:20,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23149 conditions, 6591 events. 4377/6591 cut-off events. For 27477/27477 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 34997 event pairs, 2044 based on Foata normal form. 136/6723 useless extension candidates. Maximal degree in co-relation 23119. Up to 4910 conditions per place. [2024-11-17 03:21:20,504 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 51 selfloop transitions, 9 changer transitions 49/114 dead transitions. [2024-11-17 03:21:20,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 114 transitions, 872 flow [2024-11-17 03:21:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:21:20,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:21:20,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 150 transitions. [2024-11-17 03:21:20,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2024-11-17 03:21:20,506 INFO L175 Difference]: Start difference. First operand has 77 places, 49 transitions, 327 flow. Second operand 7 states and 150 transitions. [2024-11-17 03:21:20,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 114 transitions, 872 flow [2024-11-17 03:21:20,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 114 transitions, 770 flow, removed 46 selfloop flow, removed 9 redundant places. [2024-11-17 03:21:20,560 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 325 flow [2024-11-17 03:21:20,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=325, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2024-11-17 03:21:20,561 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2024-11-17 03:21:20,561 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 325 flow [2024-11-17 03:21:20,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:20,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:20,562 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:20,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:21:20,562 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:20,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:20,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1805622891, now seen corresponding path program 1 times [2024-11-17 03:21:20,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:20,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859042268] [2024-11-17 03:21:20,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:20,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:20,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:20,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:20,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859042268] [2024-11-17 03:21:20,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859042268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:20,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:20,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:21:20,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435997174] [2024-11-17 03:21:20,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:20,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:21:20,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:20,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:21:20,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:21:20,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-11-17 03:21:20,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 325 flow. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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) [2024-11-17 03:21:20,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:20,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-11-17 03:21:20,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:21,619 INFO L124 PetriNetUnfolderBase]: 5486/8130 cut-off events. [2024-11-17 03:21:21,620 INFO L125 PetriNetUnfolderBase]: For 17635/17635 co-relation queries the response was YES. [2024-11-17 03:21:21,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24999 conditions, 8130 events. 5486/8130 cut-off events. For 17635/17635 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 44002 event pairs, 966 based on Foata normal form. 120/8245 useless extension candidates. Maximal degree in co-relation 24971. Up to 3371 conditions per place. [2024-11-17 03:21:21,667 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 51 selfloop transitions, 6 changer transitions 66/128 dead transitions. [2024-11-17 03:21:21,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 128 transitions, 901 flow [2024-11-17 03:21:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:21:21,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:21:21,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 177 transitions. [2024-11-17 03:21:21,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5267857142857143 [2024-11-17 03:21:21,669 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 325 flow. Second operand 8 states and 177 transitions. [2024-11-17 03:21:21,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 128 transitions, 901 flow [2024-11-17 03:21:21,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 128 transitions, 843 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-11-17 03:21:21,756 INFO L231 Difference]: Finished difference. Result has 72 places, 41 transitions, 238 flow [2024-11-17 03:21:21,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=238, PETRI_PLACES=72, PETRI_TRANSITIONS=41} [2024-11-17 03:21:21,757 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2024-11-17 03:21:21,757 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 41 transitions, 238 flow [2024-11-17 03:21:21,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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) [2024-11-17 03:21:21,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:21,757 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:21,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:21:21,758 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:21,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:21,758 INFO L85 PathProgramCache]: Analyzing trace with hash 668493660, now seen corresponding path program 1 times [2024-11-17 03:21:21,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:21,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019431598] [2024-11-17 03:21:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:21,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:21,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:21,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019431598] [2024-11-17 03:21:21,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019431598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:21,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:21,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:21:21,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129507006] [2024-11-17 03:21:21,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:21,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:21:21,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:21,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:21:21,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:21:21,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-11-17 03:21:21,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 41 transitions, 238 flow. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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) [2024-11-17 03:21:21,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:21,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-11-17 03:21:21,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:22,451 INFO L124 PetriNetUnfolderBase]: 3851/5783 cut-off events. [2024-11-17 03:21:22,451 INFO L125 PetriNetUnfolderBase]: For 15476/15476 co-relation queries the response was YES. [2024-11-17 03:21:22,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17529 conditions, 5783 events. 3851/5783 cut-off events. For 15476/15476 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 29011 event pairs, 765 based on Foata normal form. 100/5876 useless extension candidates. Maximal degree in co-relation 17501. Up to 2113 conditions per place. [2024-11-17 03:21:22,480 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 41 selfloop transitions, 3 changer transitions 57/106 dead transitions. [2024-11-17 03:21:22,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 106 transitions, 694 flow [2024-11-17 03:21:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:21:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:21:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2024-11-17 03:21:22,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49702380952380953 [2024-11-17 03:21:22,482 INFO L175 Difference]: Start difference. First operand has 72 places, 41 transitions, 238 flow. Second operand 8 states and 167 transitions. [2024-11-17 03:21:22,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 106 transitions, 694 flow [2024-11-17 03:21:22,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 106 transitions, 601 flow, removed 36 selfloop flow, removed 10 redundant places. [2024-11-17 03:21:22,524 INFO L231 Difference]: Finished difference. Result has 71 places, 32 transitions, 147 flow [2024-11-17 03:21:22,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=147, PETRI_PLACES=71, PETRI_TRANSITIONS=32} [2024-11-17 03:21:22,525 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2024-11-17 03:21:22,525 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 32 transitions, 147 flow [2024-11-17 03:21:22,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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) [2024-11-17 03:21:22,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:22,526 INFO L204 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] [2024-11-17 03:21:22,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:21:22,526 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:22,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash -617078959, now seen corresponding path program 1 times [2024-11-17 03:21:22,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:22,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871581642] [2024-11-17 03:21:22,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:22,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:22,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:22,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871581642] [2024-11-17 03:21:22,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871581642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:22,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:22,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:21:22,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952353911] [2024-11-17 03:21:22,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:22,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:21:22,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:22,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:21:22,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:21:22,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-17 03:21:22,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 32 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:22,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:22,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-17 03:21:22,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:22,828 INFO L124 PetriNetUnfolderBase]: 1527/2451 cut-off events. [2024-11-17 03:21:22,828 INFO L125 PetriNetUnfolderBase]: For 3904/3904 co-relation queries the response was YES. [2024-11-17 03:21:22,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6845 conditions, 2451 events. 1527/2451 cut-off events. For 3904/3904 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 12009 event pairs, 173 based on Foata normal form. 105/2554 useless extension candidates. Maximal degree in co-relation 6819. Up to 1447 conditions per place. [2024-11-17 03:21:22,884 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 48 selfloop transitions, 5 changer transitions 1/59 dead transitions. [2024-11-17 03:21:22,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 59 transitions, 379 flow [2024-11-17 03:21:22,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:21:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:21:22,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2024-11-17 03:21:22,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-17 03:21:22,887 INFO L175 Difference]: Start difference. First operand has 71 places, 32 transitions, 147 flow. Second operand 4 states and 96 transitions. [2024-11-17 03:21:22,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 59 transitions, 379 flow [2024-11-17 03:21:22,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 279 flow, removed 21 selfloop flow, removed 19 redundant places. [2024-11-17 03:21:22,896 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 127 flow [2024-11-17 03:21:22,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2024-11-17 03:21:22,897 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2024-11-17 03:21:22,897 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 127 flow [2024-11-17 03:21:22,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:22,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:22,898 INFO L204 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] [2024-11-17 03:21:22,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:21:22,899 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:22,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:22,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2077449412, now seen corresponding path program 1 times [2024-11-17 03:21:22,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:22,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645328952] [2024-11-17 03:21:22,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:22,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:22,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:22,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:22,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645328952] [2024-11-17 03:21:22,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645328952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:22,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:22,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:21:22,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402420092] [2024-11-17 03:21:22,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:22,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:21:22,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:22,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:21:22,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:21:22,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-17 03:21:22,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:22,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:22,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-17 03:21:22,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:23,185 INFO L124 PetriNetUnfolderBase]: 956/1567 cut-off events. [2024-11-17 03:21:23,186 INFO L125 PetriNetUnfolderBase]: For 868/868 co-relation queries the response was YES. [2024-11-17 03:21:23,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4055 conditions, 1567 events. 956/1567 cut-off events. For 868/868 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6849 event pairs, 88 based on Foata normal form. 84/1649 useless extension candidates. Maximal degree in co-relation 4042. Up to 661 conditions per place. [2024-11-17 03:21:23,194 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 55 selfloop transitions, 8 changer transitions 1/69 dead transitions. [2024-11-17 03:21:23,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 69 transitions, 367 flow [2024-11-17 03:21:23,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:21:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:21:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-11-17 03:21:23,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5523809523809524 [2024-11-17 03:21:23,196 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 127 flow. Second operand 5 states and 116 transitions. [2024-11-17 03:21:23,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 69 transitions, 367 flow [2024-11-17 03:21:23,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 69 transitions, 357 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 03:21:23,199 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 167 flow [2024-11-17 03:21:23,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=167, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2024-11-17 03:21:23,202 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2024-11-17 03:21:23,203 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 167 flow [2024-11-17 03:21:23,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:23,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:23,203 INFO L204 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] [2024-11-17 03:21:23,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 03:21:23,204 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:23,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:23,205 INFO L85 PathProgramCache]: Analyzing trace with hash -884761071, now seen corresponding path program 1 times [2024-11-17 03:21:23,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:23,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977273937] [2024-11-17 03:21:23,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:23,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:23,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:23,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977273937] [2024-11-17 03:21:23,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977273937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:23,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:23,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:23,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005041826] [2024-11-17 03:21:23,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:23,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:23,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:23,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:23,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:23,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-17 03:21:23,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 167 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2024-11-17 03:21:23,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:23,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-17 03:21:23,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:23,498 INFO L124 PetriNetUnfolderBase]: 522/853 cut-off events. [2024-11-17 03:21:23,499 INFO L125 PetriNetUnfolderBase]: For 954/954 co-relation queries the response was YES. [2024-11-17 03:21:23,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2415 conditions, 853 events. 522/853 cut-off events. For 954/954 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3080 event pairs, 70 based on Foata normal form. 40/891 useless extension candidates. Maximal degree in co-relation 2400. Up to 284 conditions per place. [2024-11-17 03:21:23,504 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 48 selfloop transitions, 11 changer transitions 1/65 dead transitions. [2024-11-17 03:21:23,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 65 transitions, 366 flow [2024-11-17 03:21:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:21:23,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:21:23,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 122 transitions. [2024-11-17 03:21:23,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48412698412698413 [2024-11-17 03:21:23,506 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 167 flow. Second operand 6 states and 122 transitions. [2024-11-17 03:21:23,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 65 transitions, 366 flow [2024-11-17 03:21:23,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 65 transitions, 308 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-11-17 03:21:23,511 INFO L231 Difference]: Finished difference. Result has 54 places, 38 transitions, 163 flow [2024-11-17 03:21:23,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2024-11-17 03:21:23,511 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 8 predicate places. [2024-11-17 03:21:23,512 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 38 transitions, 163 flow [2024-11-17 03:21:23,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2024-11-17 03:21:23,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:23,512 INFO L204 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] [2024-11-17 03:21:23,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 03:21:23,513 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:21:23,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:23,513 INFO L85 PathProgramCache]: Analyzing trace with hash -434949874, now seen corresponding path program 1 times [2024-11-17 03:21:23,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:23,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480330777] [2024-11-17 03:21:23,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:23,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:23,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:23,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480330777] [2024-11-17 03:21:23,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480330777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:23,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:23,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:21:23,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363261780] [2024-11-17 03:21:23,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:23,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:23,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:23,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:23,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:23,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-11-17 03:21:23,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 38 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-17 03:21:23,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:23,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-11-17 03:21:23,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:23,809 INFO L124 PetriNetUnfolderBase]: 442/708 cut-off events. [2024-11-17 03:21:23,810 INFO L125 PetriNetUnfolderBase]: For 714/714 co-relation queries the response was YES. [2024-11-17 03:21:23,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 708 events. 442/708 cut-off events. For 714/714 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2351 event pairs, 82 based on Foata normal form. 8/715 useless extension candidates. Maximal degree in co-relation 1911. Up to 444 conditions per place. [2024-11-17 03:21:23,812 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2024-11-17 03:21:23,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 319 flow [2024-11-17 03:21:23,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:21:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:21:23,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 97 transitions. [2024-11-17 03:21:23,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38492063492063494 [2024-11-17 03:21:23,814 INFO L175 Difference]: Start difference. First operand has 54 places, 38 transitions, 163 flow. Second operand 6 states and 97 transitions. [2024-11-17 03:21:23,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 319 flow [2024-11-17 03:21:23,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 247 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-17 03:21:23,817 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2024-11-17 03:21:23,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2024-11-17 03:21:23,818 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2024-11-17 03:21:23,818 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2024-11-17 03:21:23,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-17 03:21:23,821 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-17 03:21:23,821 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-17 03:21:23,822 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-17 03:21:23,822 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-17 03:21:23,822 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-17 03:21:23,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 03:21:23,823 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:23,826 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:21:23,826 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:21:23,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:21:23 BasicIcfg [2024-11-17 03:21:23,831 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:21:23,831 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:21:23,831 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:21:23,832 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:21:23,832 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:21:13" (3/4) ... [2024-11-17 03:21:23,839 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:21:23,843 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-17 03:21:23,843 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-17 03:21:23,844 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-17 03:21:23,849 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-17 03:21:23,849 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-17 03:21:23,850 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-17 03:21:23,850 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 03:21:23,932 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:21:23,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:21:23,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:21:23,934 INFO L158 Benchmark]: Toolchain (without parser) took 11705.57ms. Allocated memory was 157.3MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 128.7MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 485.3MB. Max. memory is 16.1GB. [2024-11-17 03:21:23,934 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:21:23,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.54ms. Allocated memory is still 157.3MB. Free memory was 128.7MB in the beginning and 105.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 03:21:23,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.04ms. Allocated memory is still 157.3MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:21:23,935 INFO L158 Benchmark]: Boogie Preprocessor took 65.03ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 101.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:21:23,935 INFO L158 Benchmark]: IcfgBuilder took 454.70ms. Allocated memory is still 157.3MB. Free memory was 101.5MB in the beginning and 80.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-17 03:21:23,936 INFO L158 Benchmark]: TraceAbstraction took 10497.11ms. Allocated memory was 157.3MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 80.5MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 432.8MB. Max. memory is 16.1GB. [2024-11-17 03:21:23,936 INFO L158 Benchmark]: Witness Printer took 102.15ms. Allocated memory is still 2.9GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 03:21:23,938 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.54ms. Allocated memory is still 157.3MB. Free memory was 128.7MB in the beginning and 105.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.04ms. Allocated memory is still 157.3MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.03ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 101.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 454.70ms. Allocated memory is still 157.3MB. Free memory was 101.5MB in the beginning and 80.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10497.11ms. Allocated memory was 157.3MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 80.5MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 432.8MB. Max. memory is 16.1GB. * Witness Printer took 102.15ms. Allocated memory is still 2.9GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 773]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 64 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 881 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 877 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1845 IncrementalHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 4 mSDtfsCounter, 1845 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=327occurred in iteration=5, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 852 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 03:21:23,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE