./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -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 e60e484eb5ab810972130a1d83dccbab591b96ac9007b9b56059ed6674807329 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:39:54,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:39:54,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:39:54,308 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:39:54,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:39:54,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:39:54,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:39:54,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:39:54,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:39:54,338 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:39:54,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:39:54,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:39:54,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:39:54,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:39:54,341 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:39:54,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:39:54,342 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:39:54,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:39:54,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:39:54,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:39:54,342 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:39:54,343 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:39:54,345 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:39:54,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:39:54,346 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:39:54,346 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:39:54,346 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:39:54,346 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:39:54,347 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:39:54,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:39:54,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:39:54,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:39:54,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:39:54,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:39:54,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:39:54,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:39:54,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:39:54,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:39:54,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:39:54,348 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:39:54,348 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:39:54,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:39:54,349 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e60e484eb5ab810972130a1d83dccbab591b96ac9007b9b56059ed6674807329 [2024-11-20 17:39:54,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:39:54,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:39:54,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:39:54,651 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:39:54,651 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:39:54,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2024-11-20 17:39:55,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:39:56,191 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:39:56,191 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2024-11-20 17:39:56,197 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc97c52a9/807ed45eda144a88bb455b89b1e38d8d/FLAGf51e503e2 [2024-11-20 17:39:56,582 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc97c52a9/807ed45eda144a88bb455b89b1e38d8d [2024-11-20 17:39:56,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:39:56,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:39:56,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:39:56,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:39:56,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:39:56,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6568246e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56, skipping insertion in model container [2024-11-20 17:39:56,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:39:56,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:39:56,766 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:39:56,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:39:56,800 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:39:56,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56 WrapperNode [2024-11-20 17:39:56,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:39:56,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:39:56,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:39:56,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:39:56,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,834 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 19, calls inlined = 41, statements flattened = 351 [2024-11-20 17:39:56,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:39:56,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:39:56,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:39:56,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:39:56,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,856 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]. [2024-11-20 17:39:56,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:39:56,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:39:56,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:39:56,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:39:56,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (1/1) ... [2024-11-20 17:39:56,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:39:56,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:39:56,942 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) [2024-11-20 17:39:56,948 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 [2024-11-20 17:39:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:39:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 17:39:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 17:39:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 17:39:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 17:39:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 17:39:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 17:39:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:39:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 17:39:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 17:39:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:39:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:39:56,991 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:39:57,152 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:39:57,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:39:57,635 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:39:57,635 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:39:58,243 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:39:58,244 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:39:58,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:39:58 BoogieIcfgContainer [2024-11-20 17:39:58,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:39:58,247 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:39:58,247 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:39:58,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:39:58,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:39:56" (1/3) ... [2024-11-20 17:39:58,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbe07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:39:58, skipping insertion in model container [2024-11-20 17:39:58,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:56" (2/3) ... [2024-11-20 17:39:58,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbe07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:39:58, skipping insertion in model container [2024-11-20 17:39:58,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:39:58" (3/3) ... [2024-11-20 17:39:58,252 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2024-11-20 17:39:58,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:39:58,265 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 17:39:58,266 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:39:58,339 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-20 17:39:58,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 75 flow [2024-11-20 17:39:58,396 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-20 17:39:58,398 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 17:39:58,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 0/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-20 17:39:58,400 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 27 transitions, 75 flow [2024-11-20 17:39:58,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 23 transitions, 64 flow [2024-11-20 17:39:58,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:39:58,419 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;@3097f322, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:39:58,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-20 17:39:58,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:39:58,433 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-11-20 17:39:58,433 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 17:39:58,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:39:58,434 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:39:58,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:39:58,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:39:58,439 INFO L85 PathProgramCache]: Analyzing trace with hash -780193865, now seen corresponding path program 1 times [2024-11-20 17:39:58,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:39:58,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102164102] [2024-11-20 17:39:58,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:39:58,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:39:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:40:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:40:01,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:40:01,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102164102] [2024-11-20 17:40:01,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102164102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:40:01,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:40:01,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:40:01,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769428810] [2024-11-20 17:40:01,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:40:01,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:40:01,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:40:01,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:40:01,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:40:01,710 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-20 17:40:01,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:01,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:40:01,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-20 17:40:01,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:40:02,154 INFO L124 PetriNetUnfolderBase]: 178/334 cut-off events. [2024-11-20 17:40:02,155 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-20 17:40:02,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 334 events. 178/334 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1276 event pairs, 10 based on Foata normal form. 3/336 useless extension candidates. Maximal degree in co-relation 572. Up to 110 conditions per place. [2024-11-20 17:40:02,161 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 34 selfloop transitions, 5 changer transitions 8/51 dead transitions. [2024-11-20 17:40:02,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 51 transitions, 244 flow [2024-11-20 17:40:02,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:40:02,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:40:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2024-11-20 17:40:02,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2024-11-20 17:40:02,172 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 64 flow. Second operand 6 states and 98 transitions. [2024-11-20 17:40:02,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 51 transitions, 244 flow [2024-11-20 17:40:02,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 51 transitions, 212 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-20 17:40:02,177 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 67 flow [2024-11-20 17:40:02,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=67, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2024-11-20 17:40:02,181 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2024-11-20 17:40:02,182 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 67 flow [2024-11-20 17:40:02,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:02,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:40:02,182 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:40:02,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:40:02,183 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:40:02,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:40:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash 475595617, now seen corresponding path program 2 times [2024-11-20 17:40:02,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:40:02,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059119310] [2024-11-20 17:40:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:40:02,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:40:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:40:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:40:04,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:40:04,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059119310] [2024-11-20 17:40:04,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059119310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:40:04,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:40:04,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:40:04,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246576996] [2024-11-20 17:40:04,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:40:04,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:40:04,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:40:04,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:40:04,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:40:04,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-20 17:40:04,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:04,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:40:04,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-20 17:40:04,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:40:04,448 INFO L124 PetriNetUnfolderBase]: 194/366 cut-off events. [2024-11-20 17:40:04,448 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2024-11-20 17:40:04,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 366 events. 194/366 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1526 event pairs, 14 based on Foata normal form. 1/366 useless extension candidates. Maximal degree in co-relation 825. Up to 151 conditions per place. [2024-11-20 17:40:04,452 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 34 selfloop transitions, 6 changer transitions 12/56 dead transitions. [2024-11-20 17:40:04,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 56 transitions, 262 flow [2024-11-20 17:40:04,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:40:04,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:40:04,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-11-20 17:40:04,454 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-20 17:40:04,454 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 67 flow. Second operand 6 states and 99 transitions. [2024-11-20 17:40:04,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 56 transitions, 262 flow [2024-11-20 17:40:04,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 56 transitions, 258 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 17:40:04,457 INFO L231 Difference]: Finished difference. Result has 38 places, 25 transitions, 96 flow [2024-11-20 17:40:04,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=96, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2024-11-20 17:40:04,459 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2024-11-20 17:40:04,460 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 96 flow [2024-11-20 17:40:04,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:04,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:40:04,460 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:40:04,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:40:04,460 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:40:04,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:40:04,460 INFO L85 PathProgramCache]: Analyzing trace with hash -306990875, now seen corresponding path program 3 times [2024-11-20 17:40:04,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:40:04,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505376723] [2024-11-20 17:40:04,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:40:04,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:40:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:40:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:40:06,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:40:06,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505376723] [2024-11-20 17:40:06,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505376723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:40:06,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:40:06,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:40:06,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374475850] [2024-11-20 17:40:06,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:40:06,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:40:06,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:40:06,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:40:06,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:40:06,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-20 17:40:06,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:06,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:40:06,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-20 17:40:06,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:40:06,589 INFO L124 PetriNetUnfolderBase]: 189/369 cut-off events. [2024-11-20 17:40:06,590 INFO L125 PetriNetUnfolderBase]: For 304/304 co-relation queries the response was YES. [2024-11-20 17:40:06,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 369 events. 189/369 cut-off events. For 304/304 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1536 event pairs, 16 based on Foata normal form. 1/369 useless extension candidates. Maximal degree in co-relation 894. Up to 190 conditions per place. [2024-11-20 17:40:06,594 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 31 selfloop transitions, 5 changer transitions 12/52 dead transitions. [2024-11-20 17:40:06,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 267 flow [2024-11-20 17:40:06,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:40:06,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:40:06,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions. [2024-11-20 17:40:06,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-11-20 17:40:06,596 INFO L175 Difference]: Start difference. First operand has 38 places, 25 transitions, 96 flow. Second operand 6 states and 96 transitions. [2024-11-20 17:40:06,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 267 flow [2024-11-20 17:40:06,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 52 transitions, 251 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-20 17:40:06,600 INFO L231 Difference]: Finished difference. Result has 42 places, 24 transitions, 98 flow [2024-11-20 17:40:06,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=42, PETRI_TRANSITIONS=24} [2024-11-20 17:40:06,601 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2024-11-20 17:40:06,601 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 24 transitions, 98 flow [2024-11-20 17:40:06,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:06,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:40:06,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:40:06,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:40:06,602 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:40:06,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:40:06,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1417870859, now seen corresponding path program 4 times [2024-11-20 17:40:06,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:40:06,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600306578] [2024-11-20 17:40:06,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:40:06,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:40:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:40:09,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:40:09,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:40:09,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600306578] [2024-11-20 17:40:09,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600306578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:40:09,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:40:09,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:40:09,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541709507] [2024-11-20 17:40:09,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:40:09,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:40:09,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:40:09,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:40:09,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:40:09,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-20 17:40:09,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 24 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:09,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:40:09,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-20 17:40:09,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:40:10,330 INFO L124 PetriNetUnfolderBase]: 138/270 cut-off events. [2024-11-20 17:40:10,334 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2024-11-20 17:40:10,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 270 events. 138/270 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 993 event pairs, 20 based on Foata normal form. 1/271 useless extension candidates. Maximal degree in co-relation 676. Up to 109 conditions per place. [2024-11-20 17:40:10,336 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 30 selfloop transitions, 5 changer transitions 9/48 dead transitions. [2024-11-20 17:40:10,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 254 flow [2024-11-20 17:40:10,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:40:10,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:40:10,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2024-11-20 17:40:10,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5679012345679012 [2024-11-20 17:40:10,338 INFO L175 Difference]: Start difference. First operand has 42 places, 24 transitions, 98 flow. Second operand 6 states and 92 transitions. [2024-11-20 17:40:10,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 254 flow [2024-11-20 17:40:10,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 232 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-20 17:40:10,339 INFO L231 Difference]: Finished difference. Result has 42 places, 23 transitions, 89 flow [2024-11-20 17:40:10,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=89, PETRI_PLACES=42, PETRI_TRANSITIONS=23} [2024-11-20 17:40:10,340 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2024-11-20 17:40:10,342 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 23 transitions, 89 flow [2024-11-20 17:40:10,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:10,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:40:10,343 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:40:10,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:40:10,344 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:40:10,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:40:10,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1906211381, now seen corresponding path program 5 times [2024-11-20 17:40:10,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:40:10,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670465651] [2024-11-20 17:40:10,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:40:10,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:40:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:40:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:40:11,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:40:11,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670465651] [2024-11-20 17:40:11,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670465651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:40:11,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:40:11,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:40:11,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095607821] [2024-11-20 17:40:11,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:40:11,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:40:11,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:40:11,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:40:11,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:40:11,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-20 17:40:11,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 23 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:11,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:40:11,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-20 17:40:11,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:40:12,276 INFO L124 PetriNetUnfolderBase]: 101/200 cut-off events. [2024-11-20 17:40:12,276 INFO L125 PetriNetUnfolderBase]: For 212/212 co-relation queries the response was YES. [2024-11-20 17:40:12,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 200 events. 101/200 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 661 event pairs, 5 based on Foata normal form. 1/201 useless extension candidates. Maximal degree in co-relation 532. Up to 69 conditions per place. [2024-11-20 17:40:12,277 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 19 selfloop transitions, 3 changer transitions 19/45 dead transitions. [2024-11-20 17:40:12,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 45 transitions, 229 flow [2024-11-20 17:40:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:40:12,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:40:12,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2024-11-20 17:40:12,278 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-20 17:40:12,279 INFO L175 Difference]: Start difference. First operand has 42 places, 23 transitions, 89 flow. Second operand 6 states and 90 transitions. [2024-11-20 17:40:12,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 45 transitions, 229 flow [2024-11-20 17:40:12,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 216 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-20 17:40:12,280 INFO L231 Difference]: Finished difference. Result has 44 places, 21 transitions, 76 flow [2024-11-20 17:40:12,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=21} [2024-11-20 17:40:12,281 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2024-11-20 17:40:12,281 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 21 transitions, 76 flow [2024-11-20 17:40:12,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:12,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:40:12,281 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:40:12,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:40:12,281 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:40:12,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:40:12,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1182695967, now seen corresponding path program 6 times [2024-11-20 17:40:12,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:40:12,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374492411] [2024-11-20 17:40:12,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:40:12,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:40:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:40:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:40:13,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:40:13,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374492411] [2024-11-20 17:40:13,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374492411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:40:13,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:40:13,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:40:13,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777247120] [2024-11-20 17:40:13,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:40:13,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:40:13,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:40:13,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:40:13,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:40:13,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-20 17:40:13,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 21 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:13,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:40:13,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-20 17:40:13,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:40:14,203 INFO L124 PetriNetUnfolderBase]: 42/89 cut-off events. [2024-11-20 17:40:14,203 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-20 17:40:14,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 89 events. 42/89 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 187 event pairs, 0 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 240. Up to 54 conditions per place. [2024-11-20 17:40:14,204 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2024-11-20 17:40:14,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 131 flow [2024-11-20 17:40:14,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:40:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:40:14,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2024-11-20 17:40:14,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-20 17:40:14,206 INFO L175 Difference]: Start difference. First operand has 44 places, 21 transitions, 76 flow. Second operand 6 states and 72 transitions. [2024-11-20 17:40:14,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 131 flow [2024-11-20 17:40:14,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 26 transitions, 115 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-20 17:40:14,207 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-11-20 17:40:14,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-11-20 17:40:14,207 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2024-11-20 17:40:14,208 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-11-20 17:40:14,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:40:14,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-20 17:40:14,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-20 17:40:14,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-20 17:40:14,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-20 17:40:14,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-20 17:40:14,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:40:14,211 INFO L407 BasicCegarLoop]: Path program histogram: [6] [2024-11-20 17:40:14,213 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:40:14,214 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:40:14,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:40:14 BasicIcfg [2024-11-20 17:40:14,218 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:40:14,218 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:40:14,218 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:40:14,218 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:40:14,219 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:39:58" (3/4) ... [2024-11-20 17:40:14,221 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 17:40:14,223 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-20 17:40:14,223 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-20 17:40:14,223 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-20 17:40:14,227 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2024-11-20 17:40:14,227 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-20 17:40:14,228 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-20 17:40:14,228 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 17:40:14,304 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 17:40:14,304 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 17:40:14,304 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:40:14,305 INFO L158 Benchmark]: Toolchain (without parser) took 17719.86ms. Allocated memory was 138.4MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 109.4MB in the beginning and 540.9MB in the end (delta: -431.5MB). Peak memory consumption was 481.8MB. Max. memory is 16.1GB. [2024-11-20 17:40:14,305 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 108.5MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:40:14,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.58ms. Allocated memory is still 138.4MB. Free memory was 108.8MB in the beginning and 95.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 17:40:14,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.08ms. Allocated memory is still 138.4MB. Free memory was 95.6MB in the beginning and 92.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:40:14,305 INFO L158 Benchmark]: Boogie Preprocessor took 59.70ms. Allocated memory is still 138.4MB. Free memory was 92.0MB in the beginning and 88.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:40:14,306 INFO L158 Benchmark]: RCFGBuilder took 1348.91ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 88.7MB in the beginning and 142.2MB in the end (delta: -53.5MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2024-11-20 17:40:14,306 INFO L158 Benchmark]: TraceAbstraction took 15971.06ms. Allocated memory was 192.9MB in the beginning and 1.1GB in the end (delta: 857.7MB). Free memory was 142.2MB in the beginning and 546.1MB in the end (delta: -404.0MB). Peak memory consumption was 453.8MB. Max. memory is 16.1GB. [2024-11-20 17:40:14,306 INFO L158 Benchmark]: Witness Printer took 86.11ms. Allocated memory is still 1.1GB. Free memory was 546.1MB in the beginning and 540.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 17:40:14,307 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 108.5MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.58ms. Allocated memory is still 138.4MB. Free memory was 108.8MB in the beginning and 95.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.08ms. Allocated memory is still 138.4MB. Free memory was 95.6MB in the beginning and 92.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.70ms. Allocated memory is still 138.4MB. Free memory was 92.0MB in the beginning and 88.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1348.91ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 88.7MB in the beginning and 142.2MB in the end (delta: -53.5MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15971.06ms. Allocated memory was 192.9MB in the beginning and 1.1GB in the end (delta: 857.7MB). Free memory was 142.2MB in the beginning and 546.1MB in the end (delta: -404.0MB). Peak memory consumption was 453.8MB. Max. memory is 16.1GB. * Witness Printer took 86.11ms. Allocated memory is still 1.1GB. Free memory was 546.1MB in the beginning and 540.9MB 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: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 75]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 43 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 193 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 193 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 510 IncrementalHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=3, InterpolantAutomatonStates: 36, 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, 0.5s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 5442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2024-11-20 17:40:14,331 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