./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_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/thin002_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 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:23:12,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:23:12,155 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:23:12,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:23:12,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:23:12,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:23:12,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:23:12,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:23:12,194 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:23:12,195 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:23:12,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:23:12,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:23:12,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:23:12,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:23:12,199 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:23:12,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:23:12,199 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:23:12,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:23:12,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:23:12,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:23:12,201 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:23:12,205 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:23:12,205 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:23:12,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:23:12,206 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:23:12,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:23:12,207 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:23:12,207 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:23:12,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:23:12,207 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:23:12,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:23:12,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:23:12,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:23:12,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:23:12,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:23:12,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:23:12,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:23:12,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:23:12,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:23:12,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:23:12,210 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:23:12,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:23:12,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2024-11-17 03:23:12,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:23:12,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:23:12,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:23:12,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:23:12,475 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:23:12,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:23:13,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:23:14,206 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:23:14,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:23:14,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5efbe4d49/62a334cee44c4cff8d350961bad5cef4/FLAG60a980016 [2024-11-17 03:23:14,505 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5efbe4d49/62a334cee44c4cff8d350961bad5cef4 [2024-11-17 03:23:14,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:23:14,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:23:14,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:23:14,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:23:14,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:23:14,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:23:14" (1/1) ... [2024-11-17 03:23:14,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5177ef8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:14, skipping insertion in model container [2024-11-17 03:23:14,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:23:14" (1/1) ... [2024-11-17 03:23:14,560 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:23:14,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:23:14,963 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:23:15,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:23:15,074 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:23:15,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15 WrapperNode [2024-11-17 03:23:15,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:23:15,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:23:15,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:23:15,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:23:15,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,132 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-17 03:23:15,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:23:15,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:23:15,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:23:15,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:23:15,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,205 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 03:23:15,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,216 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:23:15,226 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:23:15,226 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:23:15,226 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:23:15,227 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (1/1) ... [2024-11-17 03:23:15,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:23:15,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:23:15,291 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 03:23:15,298 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 03:23:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:23:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:23:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:23:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:23:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:23:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:23:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:23:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:23:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:23:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:23:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:23:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:23:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:23:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:23:15,349 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 03:23:15,472 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:23:15,474 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:23:15,662 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:23:15,662 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:23:15,778 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:23:15,778 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:23:15,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:23:15 BoogieIcfgContainer [2024-11-17 03:23:15,779 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:23:15,781 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:23:15,781 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:23:15,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:23:15,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:23:14" (1/3) ... [2024-11-17 03:23:15,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607a8fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:23:15, skipping insertion in model container [2024-11-17 03:23:15,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:15" (2/3) ... [2024-11-17 03:23:15,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607a8fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:23:15, skipping insertion in model container [2024-11-17 03:23:15,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:23:15" (3/3) ... [2024-11-17 03:23:15,788 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:23:15,805 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:23:15,805 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:23:15,805 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:23:15,859 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:23:15,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 52 transitions, 120 flow [2024-11-17 03:23:15,934 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2024-11-17 03:23:15,936 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:23:15,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 2/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2024-11-17 03:23:15,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 52 transitions, 120 flow [2024-11-17 03:23:15,943 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 47 transitions, 106 flow [2024-11-17 03:23:15,953 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:23:15,960 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;@590942f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:23:15,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-17 03:23:15,980 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:23:15,980 INFO L124 PetriNetUnfolderBase]: 2/45 cut-off events. [2024-11-17 03:23:15,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:23:15,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:15,982 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 03:23:15,984 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:23:15,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:15,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2088667667, now seen corresponding path program 1 times [2024-11-17 03:23:15,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:15,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100563303] [2024-11-17 03:23:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:15,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:16,339 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 03:23:16,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:16,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100563303] [2024-11-17 03:23:16,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100563303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:16,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:16,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:23:16,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070537866] [2024-11-17 03:23:16,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:16,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:23:16,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:16,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:23:16,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:23:16,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-11-17 03:23:16,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:23:16,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:16,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-11-17 03:23:16,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:20,737 INFO L124 PetriNetUnfolderBase]: 38795/54903 cut-off events. [2024-11-17 03:23:20,737 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2024-11-17 03:23:20,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106403 conditions, 54903 events. 38795/54903 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 1687. Compared 359710 event pairs, 38795 based on Foata normal form. 3888/58764 useless extension candidates. Maximal degree in co-relation 106391. Up to 50976 conditions per place. [2024-11-17 03:23:21,164 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 34 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-11-17 03:23:21,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 43 transitions, 170 flow [2024-11-17 03:23:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:23:21,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:23:21,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-17 03:23:21,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2024-11-17 03:23:21,180 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 106 flow. Second operand 3 states and 72 transitions. [2024-11-17 03:23:21,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 43 transitions, 170 flow [2024-11-17 03:23:21,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:23:21,192 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-11-17 03:23:21,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-17 03:23:21,201 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2024-11-17 03:23:21,201 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-11-17 03:23:21,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:23:21,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:21,202 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 03:23:21,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:23:21,203 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:23:21,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:21,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2088666926, now seen corresponding path program 1 times [2024-11-17 03:23:21,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:21,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914704502] [2024-11-17 03:23:21,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:21,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:21,486 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 03:23:21,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:21,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914704502] [2024-11-17 03:23:21,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914704502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:21,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:21,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:23:21,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866494879] [2024-11-17 03:23:21,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:21,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:23:21,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:21,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:23:21,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:23:21,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2024-11-17 03:23:21,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 03:23:21,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:21,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2024-11-17 03:23:21,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:23,841 INFO L124 PetriNetUnfolderBase]: 31611/45409 cut-off events. [2024-11-17 03:23:23,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:23:23,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88187 conditions, 45409 events. 31611/45409 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1472. Compared 302720 event pairs, 3739 based on Foata normal form. 1296/46686 useless extension candidates. Maximal degree in co-relation 88181. Up to 26017 conditions per place. [2024-11-17 03:23:24,075 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 72 selfloop transitions, 6 changer transitions 1/86 dead transitions. [2024-11-17 03:23:24,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 86 transitions, 346 flow [2024-11-17 03:23:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:23:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:23:24,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2024-11-17 03:23:24,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6201923076923077 [2024-11-17 03:23:24,080 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 4 states and 129 transitions. [2024-11-17 03:23:24,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 86 transitions, 346 flow [2024-11-17 03:23:24,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 86 transitions, 345 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:23:24,083 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 135 flow [2024-11-17 03:23:24,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=135, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2024-11-17 03:23:24,084 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -1 predicate places. [2024-11-17 03:23:24,085 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 135 flow [2024-11-17 03:23:24,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 03:23:24,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:24,086 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 03:23:24,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:23:24,087 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:23:24,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:24,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1587517704, now seen corresponding path program 1 times [2024-11-17 03:23:24,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:24,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278375880] [2024-11-17 03:23:24,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:24,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:24,279 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 03:23:24,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278375880] [2024-11-17 03:23:24,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278375880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:24,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:24,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:23:24,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512401471] [2024-11-17 03:23:24,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:24,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:23:24,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:24,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:23:24,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:23:24,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2024-11-17 03:23:24,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 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 03:23:24,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:24,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2024-11-17 03:23:24,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:25,859 INFO L124 PetriNetUnfolderBase]: 20347/29281 cut-off events. [2024-11-17 03:23:25,860 INFO L125 PetriNetUnfolderBase]: For 5458/5458 co-relation queries the response was YES. [2024-11-17 03:23:25,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65154 conditions, 29281 events. 20347/29281 cut-off events. For 5458/5458 co-relation queries the response was YES. Maximal size of possible extension queue 793. Compared 181160 event pairs, 2151 based on Foata normal form. 1040/30302 useless extension candidates. Maximal degree in co-relation 65145. Up to 12193 conditions per place. [2024-11-17 03:23:26,062 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 93 selfloop transitions, 10 changer transitions 1/111 dead transitions. [2024-11-17 03:23:26,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 111 transitions, 502 flow [2024-11-17 03:23:26,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:23:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:23:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2024-11-17 03:23:26,067 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6384615384615384 [2024-11-17 03:23:26,067 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 135 flow. Second operand 5 states and 166 transitions. [2024-11-17 03:23:26,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 111 transitions, 502 flow [2024-11-17 03:23:26,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 111 transitions, 491 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 03:23:26,087 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 187 flow [2024-11-17 03:23:26,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2024-11-17 03:23:26,089 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2024-11-17 03:23:26,089 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 187 flow [2024-11-17 03:23:26,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 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 03:23:26,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:26,090 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] [2024-11-17 03:23:26,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:23:26,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:23:26,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash 617638132, now seen corresponding path program 1 times [2024-11-17 03:23:26,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:26,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961953323] [2024-11-17 03:23:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:26,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:26,275 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 03:23:26,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:26,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961953323] [2024-11-17 03:23:26,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961953323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:26,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:26,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:23:26,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136598668] [2024-11-17 03:23:26,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:26,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:23:26,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:26,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:23:26,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:23:26,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2024-11-17 03:23:26,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:23:26,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:26,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2024-11-17 03:23:26,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:27,463 INFO L124 PetriNetUnfolderBase]: 12027/16993 cut-off events. [2024-11-17 03:23:27,463 INFO L125 PetriNetUnfolderBase]: For 10030/10030 co-relation queries the response was YES. [2024-11-17 03:23:27,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41806 conditions, 16993 events. 12027/16993 cut-off events. For 10030/10030 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 92049 event pairs, 1839 based on Foata normal form. 528/17502 useless extension candidates. Maximal degree in co-relation 41795. Up to 4800 conditions per place. [2024-11-17 03:23:27,529 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 112 selfloop transitions, 14 changer transitions 1/134 dead transitions. [2024-11-17 03:23:27,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 134 transitions, 657 flow [2024-11-17 03:23:27,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:23:27,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:23:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2024-11-17 03:23:27,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6442307692307693 [2024-11-17 03:23:27,532 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 187 flow. Second operand 6 states and 201 transitions. [2024-11-17 03:23:27,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 134 transitions, 657 flow [2024-11-17 03:23:27,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 134 transitions, 627 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 03:23:27,667 INFO L231 Difference]: Finished difference. Result has 64 places, 54 transitions, 237 flow [2024-11-17 03:23:27,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=64, PETRI_TRANSITIONS=54} [2024-11-17 03:23:27,669 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2024-11-17 03:23:27,669 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 54 transitions, 237 flow [2024-11-17 03:23:27,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:23:27,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:27,669 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, 1, 1, 1] [2024-11-17 03:23:27,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:23:27,670 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:23:27,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:27,671 INFO L85 PathProgramCache]: Analyzing trace with hash -604827128, now seen corresponding path program 1 times [2024-11-17 03:23:27,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:27,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687703583] [2024-11-17 03:23:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:27,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:27,842 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 03:23:27,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:27,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687703583] [2024-11-17 03:23:27,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687703583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:27,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:27,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:23:27,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623595906] [2024-11-17 03:23:27,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:27,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:23:27,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:23:27,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:23:27,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2024-11-17 03:23:27,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 237 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 03:23:27,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:27,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2024-11-17 03:23:27,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:28,523 INFO L124 PetriNetUnfolderBase]: 9083/12513 cut-off events. [2024-11-17 03:23:28,523 INFO L125 PetriNetUnfolderBase]: For 9846/9846 co-relation queries the response was YES. [2024-11-17 03:23:28,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32239 conditions, 12513 events. 9083/12513 cut-off events. For 9846/9846 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 63673 event pairs, 1687 based on Foata normal form. 144/12638 useless extension candidates. Maximal degree in co-relation 32227. Up to 4608 conditions per place. [2024-11-17 03:23:28,578 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 97 selfloop transitions, 18 changer transitions 1/123 dead transitions. [2024-11-17 03:23:28,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 123 transitions, 623 flow [2024-11-17 03:23:28,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:23:28,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:23:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2024-11-17 03:23:28,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.554945054945055 [2024-11-17 03:23:28,580 INFO L175 Difference]: Start difference. First operand has 64 places, 54 transitions, 237 flow. Second operand 7 states and 202 transitions. [2024-11-17 03:23:28,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 123 transitions, 623 flow [2024-11-17 03:23:28,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 123 transitions, 577 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-17 03:23:28,743 INFO L231 Difference]: Finished difference. Result has 67 places, 54 transitions, 247 flow [2024-11-17 03:23:28,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=247, PETRI_PLACES=67, PETRI_TRANSITIONS=54} [2024-11-17 03:23:28,743 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 9 predicate places. [2024-11-17 03:23:28,744 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 54 transitions, 247 flow [2024-11-17 03:23:28,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 03:23:28,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:28,744 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:23:28,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:23:28,744 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:23:28,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:28,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1274819006, now seen corresponding path program 1 times [2024-11-17 03:23:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:28,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859704655] [2024-11-17 03:23:28,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:28,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:28,917 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 03:23:28,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:28,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859704655] [2024-11-17 03:23:28,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859704655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:28,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:28,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:23:28,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730616694] [2024-11-17 03:23:28,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:28,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:23:28,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:28,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:23:28,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:23:28,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2024-11-17 03:23:28,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 54 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 03:23:28,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:28,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2024-11-17 03:23:28,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:29,867 INFO L124 PetriNetUnfolderBase]: 13391/18449 cut-off events. [2024-11-17 03:23:29,867 INFO L125 PetriNetUnfolderBase]: For 14864/14864 co-relation queries the response was YES. [2024-11-17 03:23:29,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47792 conditions, 18449 events. 13391/18449 cut-off events. For 14864/14864 co-relation queries the response was YES. Maximal size of possible extension queue 641. Compared 100520 event pairs, 2791 based on Foata normal form. 16/18450 useless extension candidates. Maximal degree in co-relation 47779. Up to 7912 conditions per place. [2024-11-17 03:23:29,945 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 83 selfloop transitions, 3 changer transitions 32/125 dead transitions. [2024-11-17 03:23:29,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 125 transitions, 811 flow [2024-11-17 03:23:29,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:23:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:23:29,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2024-11-17 03:23:29,947 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5160256410256411 [2024-11-17 03:23:29,947 INFO L175 Difference]: Start difference. First operand has 67 places, 54 transitions, 247 flow. Second operand 6 states and 161 transitions. [2024-11-17 03:23:29,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 125 transitions, 811 flow [2024-11-17 03:23:30,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 125 transitions, 586 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-17 03:23:30,184 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 165 flow [2024-11-17 03:23:30,184 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=165, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2024-11-17 03:23:30,185 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 7 predicate places. [2024-11-17 03:23:30,185 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 165 flow [2024-11-17 03:23:30,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 03:23:30,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:30,186 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:23:30,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:23:30,186 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:23:30,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:30,187 INFO L85 PathProgramCache]: Analyzing trace with hash -39125102, now seen corresponding path program 2 times [2024-11-17 03:23:30,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:30,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623523342] [2024-11-17 03:23:30,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:30,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:30,349 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 03:23:30,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:30,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623523342] [2024-11-17 03:23:30,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623523342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:30,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:30,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:23:30,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511750854] [2024-11-17 03:23:30,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:30,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:23:30,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:30,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:23:30,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:23:30,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2024-11-17 03:23:30,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 03:23:30,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:30,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2024-11-17 03:23:30,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:31,032 INFO L124 PetriNetUnfolderBase]: 8815/12308 cut-off events. [2024-11-17 03:23:31,033 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2024-11-17 03:23:31,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28157 conditions, 12308 events. 8815/12308 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 61734 event pairs, 2051 based on Foata normal form. 16/12313 useless extension candidates. Maximal degree in co-relation 28146. Up to 5152 conditions per place. [2024-11-17 03:23:31,083 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 75 selfloop transitions, 3 changer transitions 32/117 dead transitions. [2024-11-17 03:23:31,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 117 transitions, 568 flow [2024-11-17 03:23:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:23:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:23:31,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-11-17 03:23:31,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49038461538461536 [2024-11-17 03:23:31,085 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 165 flow. Second operand 6 states and 153 transitions. [2024-11-17 03:23:31,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 117 transitions, 568 flow [2024-11-17 03:23:31,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 117 transitions, 552 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-17 03:23:31,090 INFO L231 Difference]: Finished difference. Result has 66 places, 54 transitions, 167 flow [2024-11-17 03:23:31,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=167, PETRI_PLACES=66, PETRI_TRANSITIONS=54} [2024-11-17 03:23:31,091 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2024-11-17 03:23:31,091 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 54 transitions, 167 flow [2024-11-17 03:23:31,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 03:23:31,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:31,091 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:23:31,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:23:31,092 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:23:31,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:31,092 INFO L85 PathProgramCache]: Analyzing trace with hash 816375576, now seen corresponding path program 3 times [2024-11-17 03:23:31,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:31,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031241568] [2024-11-17 03:23:31,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:31,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:31,251 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 03:23:31,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:31,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031241568] [2024-11-17 03:23:31,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031241568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:31,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:31,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:23:31,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885833599] [2024-11-17 03:23:31,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:31,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:23:31,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:31,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:23:31,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:23:31,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2024-11-17 03:23:31,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 167 flow. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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 03:23:31,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:31,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2024-11-17 03:23:31,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:31,824 INFO L124 PetriNetUnfolderBase]: 7173/10175 cut-off events. [2024-11-17 03:23:31,824 INFO L125 PetriNetUnfolderBase]: For 1932/1932 co-relation queries the response was YES. [2024-11-17 03:23:31,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23948 conditions, 10175 events. 7173/10175 cut-off events. For 1932/1932 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 50974 event pairs, 2643 based on Foata normal form. 16/10188 useless extension candidates. Maximal degree in co-relation 23937. Up to 4200 conditions per place. [2024-11-17 03:23:31,859 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 59 selfloop transitions, 3 changer transitions 60/129 dead transitions. [2024-11-17 03:23:31,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 129 transitions, 642 flow [2024-11-17 03:23:31,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:23:31,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:23:31,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2024-11-17 03:23:31,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5288461538461539 [2024-11-17 03:23:31,861 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 167 flow. Second operand 6 states and 165 transitions. [2024-11-17 03:23:31,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 129 transitions, 642 flow [2024-11-17 03:23:31,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 129 transitions, 618 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-17 03:23:31,871 INFO L231 Difference]: Finished difference. Result has 67 places, 54 transitions, 169 flow [2024-11-17 03:23:31,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=67, PETRI_TRANSITIONS=54} [2024-11-17 03:23:31,872 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 9 predicate places. [2024-11-17 03:23:31,872 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 54 transitions, 169 flow [2024-11-17 03:23:31,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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 03:23:31,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:31,873 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:23:31,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:23:31,873 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:23:31,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:31,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1718790924, now seen corresponding path program 4 times [2024-11-17 03:23:31,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:31,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560871070] [2024-11-17 03:23:31,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:31,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:32,036 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 03:23:32,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:32,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560871070] [2024-11-17 03:23:32,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560871070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:32,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:32,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:23:32,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093049761] [2024-11-17 03:23:32,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:32,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:23:32,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:32,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:23:32,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:23:32,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2024-11-17 03:23:32,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 54 transitions, 169 flow. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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 03:23:32,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:32,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2024-11-17 03:23:32,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:32,373 INFO L124 PetriNetUnfolderBase]: 2865/4104 cut-off events. [2024-11-17 03:23:32,373 INFO L125 PetriNetUnfolderBase]: For 727/727 co-relation queries the response was YES. [2024-11-17 03:23:32,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9535 conditions, 4104 events. 2865/4104 cut-off events. For 727/727 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 16618 event pairs, 1181 based on Foata normal form. 16/4119 useless extension candidates. Maximal degree in co-relation 9529. Up to 2064 conditions per place. [2024-11-17 03:23:32,385 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2024-11-17 03:23:32,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 75 transitions, 367 flow [2024-11-17 03:23:32,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:23:32,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:23:32,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-17 03:23:32,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40064102564102566 [2024-11-17 03:23:32,387 INFO L175 Difference]: Start difference. First operand has 67 places, 54 transitions, 169 flow. Second operand 6 states and 125 transitions. [2024-11-17 03:23:32,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 75 transitions, 367 flow [2024-11-17 03:23:32,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 75 transitions, 357 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-17 03:23:32,389 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-11-17 03:23:32,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-11-17 03:23:32,390 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2024-11-17 03:23:32,390 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-11-17 03:23:32,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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 03:23:32,393 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-17 03:23:32,394 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-17 03:23:32,394 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-17 03:23:32,394 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-17 03:23:32,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-17 03:23:32,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-17 03:23:32,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:23:32,395 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2024-11-17 03:23:32,399 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:23:32,399 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:23:32,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:23:32 BasicIcfg [2024-11-17 03:23:32,407 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:23:32,407 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:23:32,407 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:23:32,408 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:23:32,408 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:23:15" (3/4) ... [2024-11-17 03:23:32,410 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:23:32,413 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-17 03:23:32,413 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-17 03:23:32,413 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-17 03:23:32,413 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-17 03:23:32,418 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-17 03:23:32,419 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-17 03:23:32,419 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-17 03:23:32,420 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 03:23:32,504 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:23:32,507 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:23:32,507 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:23:32,508 INFO L158 Benchmark]: Toolchain (without parser) took 17999.16ms. Allocated memory was 163.6MB in the beginning and 11.1GB in the end (delta: 10.9GB). Free memory was 87.8MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-17 03:23:32,508 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:23:32,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 565.36ms. Allocated memory is still 163.6MB. Free memory was 87.6MB in the beginning and 64.6MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 03:23:32,509 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.41ms. Allocated memory is still 163.6MB. Free memory was 64.6MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:23:32,509 INFO L158 Benchmark]: Boogie Preprocessor took 92.13ms. Allocated memory is still 163.6MB. Free memory was 62.5MB in the beginning and 130.4MB in the end (delta: -67.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-17 03:23:32,509 INFO L158 Benchmark]: IcfgBuilder took 553.34ms. Allocated memory was 163.6MB in the beginning and 243.3MB in the end (delta: 79.7MB). Free memory was 130.3MB in the beginning and 190.0MB in the end (delta: -59.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2024-11-17 03:23:32,509 INFO L158 Benchmark]: TraceAbstraction took 16625.64ms. Allocated memory was 243.3MB in the beginning and 11.1GB in the end (delta: 10.8GB). Free memory was 190.0MB in the beginning and 9.7GB in the end (delta: -9.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-17 03:23:32,510 INFO L158 Benchmark]: Witness Printer took 99.89ms. Allocated memory is still 11.1GB. Free memory was 9.7GB in the beginning and 9.7GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 03:23:32,515 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 565.36ms. Allocated memory is still 163.6MB. Free memory was 87.6MB in the beginning and 64.6MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.41ms. Allocated memory is still 163.6MB. Free memory was 64.6MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.13ms. Allocated memory is still 163.6MB. Free memory was 62.5MB in the beginning and 130.4MB in the end (delta: -67.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * IcfgBuilder took 553.34ms. Allocated memory was 163.6MB in the beginning and 243.3MB in the end (delta: 79.7MB). Free memory was 130.3MB in the beginning and 190.0MB in the end (delta: -59.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16625.64ms. Allocated memory was 243.3MB in the beginning and 11.1GB in the end (delta: 10.8GB). Free memory was 190.0MB in the beginning and 9.7GB in the end (delta: -9.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 99.89ms. Allocated memory is still 11.1GB. Free memory was 9.7GB in the beginning and 9.7GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 798]: 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 9 procedures, 83 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 778 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 769 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1287 IncrementalHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 4 mSDtfsCounter, 1287 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=5, InterpolantAutomatonStates: 49, 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, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 263 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 976 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 03:23:32,545 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