./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-theta/unwind2-100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d 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-theta/unwind2-100.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 7857262d4d8d027aa598d94064d6edf426fece06c8ec09601338aa41711d7f37 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:59:50,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:59:50,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:59:50,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:59:50,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:59:50,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:59:50,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:59:50,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:59:50,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:59:50,974 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:59:50,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:59:50,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:59:50,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:59:50,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:59:50,977 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:59:50,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:59:50,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:59:50,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:59:50,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:59:50,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:59:50,979 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:59:50,981 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:59:50,982 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:59:50,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:59:50,982 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:59:50,982 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:59:50,982 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:59:50,982 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:59:50,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:59:50,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:59:50,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:59:50,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:59:50,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:59:50,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:59:50,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:59:50,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:59:50,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:59:50,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:59:50,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:59:50,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:59:50,985 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:59:50,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:59:50,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7857262d4d8d027aa598d94064d6edf426fece06c8ec09601338aa41711d7f37 [2024-11-09 10:59:51,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:59:51,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:59:51,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:59:51,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:59:51,219 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:59:51,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind2-100.i [2024-11-09 10:59:52,455 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:59:52,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:59:52,636 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind2-100.i [2024-11-09 10:59:52,648 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2325002b8/c6d5d87b3d44451aabcc572146e093fe/FLAGc19e13443 [2024-11-09 10:59:52,659 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2325002b8/c6d5d87b3d44451aabcc572146e093fe [2024-11-09 10:59:52,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:59:52,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:59:52,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:59:52,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:59:52,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:59:52,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:59:52" (1/1) ... [2024-11-09 10:59:52,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651b04ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:52, skipping insertion in model container [2024-11-09 10:59:52,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:59:52" (1/1) ... [2024-11-09 10:59:52,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:59:52,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:59:53,006 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:59:53,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:59:53,131 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:59:53,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53 WrapperNode [2024-11-09 10:59:53,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:59:53,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:59:53,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:59:53,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:59:53,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,166 INFO L138 Inliner]: procedures = 169, calls = 12, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 85 [2024-11-09 10:59:53,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:59:53,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:59:53,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:59:53,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:59:53,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,177 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,188 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]. [2024-11-09 10:59:53,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:59:53,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:59:53,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:59:53,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:59:53,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (1/1) ... [2024-11-09 10:59:53,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:59:53,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:59:53,232 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) [2024-11-09 10:59:53,234 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 [2024-11-09 10:59:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:59:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-09 10:59:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-09 10:59:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-09 10:59:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-09 10:59:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:59:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:59:53,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:59:53,266 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:59:53,383 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:59:53,385 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:59:53,505 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:59:53,505 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:59:53,579 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:59:53,579 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 10:59:53,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:59:53 BoogieIcfgContainer [2024-11-09 10:59:53,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:59:53,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:59:53,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:59:53,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:59:53,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:59:52" (1/3) ... [2024-11-09 10:59:53,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed0e1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:59:53, skipping insertion in model container [2024-11-09 10:59:53,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:53" (2/3) ... [2024-11-09 10:59:53,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed0e1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:59:53, skipping insertion in model container [2024-11-09 10:59:53,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:59:53" (3/3) ... [2024-11-09 10:59:53,588 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-100.i [2024-11-09 10:59:53,601 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:59:53,602 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 10:59:53,602 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:59:53,635 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 10:59:53,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 38 transitions, 90 flow [2024-11-09 10:59:53,684 INFO L124 PetriNetUnfolderBase]: 6/36 cut-off events. [2024-11-09 10:59:53,684 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 10:59:53,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 36 events. 6/36 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-09 10:59:53,687 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 38 transitions, 90 flow [2024-11-09 10:59:53,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 35 transitions, 82 flow [2024-11-09 10:59:53,695 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:59:53,700 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;@3be02457, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:59:53,701 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 10:59:53,706 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:59:53,706 INFO L124 PetriNetUnfolderBase]: 4/22 cut-off events. [2024-11-09 10:59:53,706 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:59:53,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:53,707 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:53,707 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:53,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:53,715 INFO L85 PathProgramCache]: Analyzing trace with hash 338354967, now seen corresponding path program 1 times [2024-11-09 10:59:53,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:53,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002385768] [2024-11-09 10:59:53,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:53,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:53,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:53,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:53,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002385768] [2024-11-09 10:59:53,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002385768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:59:53,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:59:53,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:59:53,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420116953] [2024-11-09 10:59:53,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:59:53,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:59:53,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:54,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:59:54,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:59:54,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:54,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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) [2024-11-09 10:59:54,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:54,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:54,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:54,260 INFO L124 PetriNetUnfolderBase]: 287/602 cut-off events. [2024-11-09 10:59:54,260 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-09 10:59:54,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 602 events. 287/602 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3097 event pairs, 42 based on Foata normal form. 112/658 useless extension candidates. Maximal degree in co-relation 1048. Up to 215 conditions per place. [2024-11-09 10:59:54,268 INFO L140 encePairwiseOnDemand]: 27/38 looper letters, 58 selfloop transitions, 8 changer transitions 0/74 dead transitions. [2024-11-09 10:59:54,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 74 transitions, 307 flow [2024-11-09 10:59:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:59:54,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:59:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 152 transitions. [2024-11-09 10:59:54,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-09 10:59:54,284 INFO L175 Difference]: Start difference. First operand has 36 places, 35 transitions, 82 flow. Second operand 7 states and 152 transitions. [2024-11-09 10:59:54,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 74 transitions, 307 flow [2024-11-09 10:59:54,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 74 transitions, 289 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 10:59:54,292 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 111 flow [2024-11-09 10:59:54,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=111, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2024-11-09 10:59:54,297 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2024-11-09 10:59:54,298 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 111 flow [2024-11-09 10:59:54,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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) [2024-11-09 10:59:54,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:54,299 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:54,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:59:54,300 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:54,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:54,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1898083594, now seen corresponding path program 1 times [2024-11-09 10:59:54,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:54,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323451253] [2024-11-09 10:59:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:54,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:54,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:54,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:54,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323451253] [2024-11-09 10:59:54,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323451253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:59:54,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110187641] [2024-11-09 10:59:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:54,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:54,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:59:54,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:59:54,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 10:59:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:54,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 10:59:54,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:59:54,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:54,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:59:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:54,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110187641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:59:54,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:59:54,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-09 10:59:54,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733281786] [2024-11-09 10:59:54,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:59:54,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 10:59:54,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:54,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 10:59:54,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-09 10:59:54,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:54,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 111 flow. Second operand has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 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) [2024-11-09 10:59:54,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:54,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:54,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:54,986 INFO L124 PetriNetUnfolderBase]: 401/812 cut-off events. [2024-11-09 10:59:54,986 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-11-09 10:59:54,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 812 events. 401/812 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4255 event pairs, 42 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 747. Up to 215 conditions per place. [2024-11-09 10:59:54,991 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 103 selfloop transitions, 17 changer transitions 0/128 dead transitions. [2024-11-09 10:59:54,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 128 transitions, 592 flow [2024-11-09 10:59:54,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 10:59:54,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 10:59:54,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 256 transitions. [2024-11-09 10:59:54,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5182186234817814 [2024-11-09 10:59:54,996 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 111 flow. Second operand 13 states and 256 transitions. [2024-11-09 10:59:54,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 128 transitions, 592 flow [2024-11-09 10:59:54,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 128 transitions, 578 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-09 10:59:55,000 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 222 flow [2024-11-09 10:59:55,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=222, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-11-09 10:59:55,001 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 18 predicate places. [2024-11-09 10:59:55,001 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 222 flow [2024-11-09 10:59:55,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 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) [2024-11-09 10:59:55,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:55,001 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:55,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 10:59:55,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:55,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:55,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:55,206 INFO L85 PathProgramCache]: Analyzing trace with hash 84955400, now seen corresponding path program 1 times [2024-11-09 10:59:55,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:55,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472320126] [2024-11-09 10:59:55,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:55,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:55,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:55,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472320126] [2024-11-09 10:59:55,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472320126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:59:55,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:59:55,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:59:55,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142116453] [2024-11-09 10:59:55,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:59:55,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:59:55,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:55,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:59:55,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:59:55,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:55,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:59:55,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:55,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:55,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:55,479 INFO L124 PetriNetUnfolderBase]: 463/950 cut-off events. [2024-11-09 10:59:55,479 INFO L125 PetriNetUnfolderBase]: For 1491/1491 co-relation queries the response was YES. [2024-11-09 10:59:55,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2673 conditions, 950 events. 463/950 cut-off events. For 1491/1491 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5114 event pairs, 134 based on Foata normal form. 0/904 useless extension candidates. Maximal degree in co-relation 1652. Up to 322 conditions per place. [2024-11-09 10:59:55,485 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 75 selfloop transitions, 13 changer transitions 0/96 dead transitions. [2024-11-09 10:59:55,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 96 transitions, 703 flow [2024-11-09 10:59:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:59:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:59:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-11-09 10:59:55,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5075187969924813 [2024-11-09 10:59:55,487 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 222 flow. Second operand 7 states and 135 transitions. [2024-11-09 10:59:55,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 96 transitions, 703 flow [2024-11-09 10:59:55,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 96 transitions, 583 flow, removed 45 selfloop flow, removed 5 redundant places. [2024-11-09 10:59:55,500 INFO L231 Difference]: Finished difference. Result has 58 places, 49 transitions, 241 flow [2024-11-09 10:59:55,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=241, PETRI_PLACES=58, PETRI_TRANSITIONS=49} [2024-11-09 10:59:55,502 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2024-11-09 10:59:55,502 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 49 transitions, 241 flow [2024-11-09 10:59:55,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:59:55,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:55,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:55,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:59:55,503 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:55,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1662335674, now seen corresponding path program 1 times [2024-11-09 10:59:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:55,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103705146] [2024-11-09 10:59:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:55,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:55,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:55,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103705146] [2024-11-09 10:59:55,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103705146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:59:55,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211769022] [2024-11-09 10:59:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:55,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:55,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:59:55,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:59:55,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 10:59:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:55,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 10:59:55,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:59:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:55,701 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:59:55,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:55,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211769022] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:59:55,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:59:55,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-09 10:59:55,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085413664] [2024-11-09 10:59:55,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:59:55,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 10:59:55,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:55,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 10:59:55,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-09 10:59:55,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:55,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 49 transitions, 241 flow. Second operand has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 14 states have internal predecessors, (162), 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) [2024-11-09 10:59:55,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:55,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:55,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:56,085 INFO L124 PetriNetUnfolderBase]: 649/1274 cut-off events. [2024-11-09 10:59:56,085 INFO L125 PetriNetUnfolderBase]: For 2153/2153 co-relation queries the response was YES. [2024-11-09 10:59:56,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3859 conditions, 1274 events. 649/1274 cut-off events. For 2153/2153 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 6921 event pairs, 134 based on Foata normal form. 0/1230 useless extension candidates. Maximal degree in co-relation 2272. Up to 322 conditions per place. [2024-11-09 10:59:56,094 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 144 selfloop transitions, 22 changer transitions 0/174 dead transitions. [2024-11-09 10:59:56,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 174 transitions, 1207 flow [2024-11-09 10:59:56,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 10:59:56,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 10:59:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 253 transitions. [2024-11-09 10:59:56,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5121457489878543 [2024-11-09 10:59:56,096 INFO L175 Difference]: Start difference. First operand has 58 places, 49 transitions, 241 flow. Second operand 13 states and 253 transitions. [2024-11-09 10:59:56,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 174 transitions, 1207 flow [2024-11-09 10:59:56,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 174 transitions, 1188 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-09 10:59:56,105 INFO L231 Difference]: Finished difference. Result has 73 places, 59 transitions, 366 flow [2024-11-09 10:59:56,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=366, PETRI_PLACES=73, PETRI_TRANSITIONS=59} [2024-11-09 10:59:56,106 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 37 predicate places. [2024-11-09 10:59:56,106 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 59 transitions, 366 flow [2024-11-09 10:59:56,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 14 states have internal predecessors, (162), 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) [2024-11-09 10:59:56,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:56,107 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:56,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 10:59:56,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-09 10:59:56,308 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:56,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:56,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1032604834, now seen corresponding path program 1 times [2024-11-09 10:59:56,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:56,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437953981] [2024-11-09 10:59:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:56,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:56,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:56,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437953981] [2024-11-09 10:59:56,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437953981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:59:56,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:59:56,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:59:56,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520107461] [2024-11-09 10:59:56,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:59:56,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:59:56,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:56,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:59:56,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:59:56,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:56,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 59 transitions, 366 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-09 10:59:56,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:56,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:56,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:56,536 INFO L124 PetriNetUnfolderBase]: 676/1341 cut-off events. [2024-11-09 10:59:56,538 INFO L125 PetriNetUnfolderBase]: For 4442/4442 co-relation queries the response was YES. [2024-11-09 10:59:56,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4668 conditions, 1341 events. 676/1341 cut-off events. For 4442/4442 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7399 event pairs, 170 based on Foata normal form. 18/1357 useless extension candidates. Maximal degree in co-relation 3002. Up to 519 conditions per place. [2024-11-09 10:59:56,548 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 70 selfloop transitions, 15 changer transitions 0/93 dead transitions. [2024-11-09 10:59:56,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 93 transitions, 744 flow [2024-11-09 10:59:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:59:56,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:59:56,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2024-11-09 10:59:56,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4956140350877193 [2024-11-09 10:59:56,549 INFO L175 Difference]: Start difference. First operand has 73 places, 59 transitions, 366 flow. Second operand 6 states and 113 transitions. [2024-11-09 10:59:56,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 93 transitions, 744 flow [2024-11-09 10:59:56,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 93 transitions, 666 flow, removed 27 selfloop flow, removed 5 redundant places. [2024-11-09 10:59:56,560 INFO L231 Difference]: Finished difference. Result has 74 places, 60 transitions, 354 flow [2024-11-09 10:59:56,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=74, PETRI_TRANSITIONS=60} [2024-11-09 10:59:56,560 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 38 predicate places. [2024-11-09 10:59:56,560 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 60 transitions, 354 flow [2024-11-09 10:59:56,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-09 10:59:56,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:56,561 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:56,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:59:56,561 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:56,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:56,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1116409153, now seen corresponding path program 1 times [2024-11-09 10:59:56,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:56,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62837184] [2024-11-09 10:59:56,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:56,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:56,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:56,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:56,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62837184] [2024-11-09 10:59:56,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62837184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:59:56,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:59:56,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:59:56,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591407062] [2024-11-09 10:59:56,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:59:56,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:59:56,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:56,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:59:56,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:59:56,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:56,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 60 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-09 10:59:56,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:56,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:56,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:56,784 INFO L124 PetriNetUnfolderBase]: 704/1402 cut-off events. [2024-11-09 10:59:56,785 INFO L125 PetriNetUnfolderBase]: For 4672/4672 co-relation queries the response was YES. [2024-11-09 10:59:56,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4577 conditions, 1402 events. 704/1402 cut-off events. For 4672/4672 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 7898 event pairs, 166 based on Foata normal form. 19/1415 useless extension candidates. Maximal degree in co-relation 2907. Up to 559 conditions per place. [2024-11-09 10:59:56,794 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 75 selfloop transitions, 15 changer transitions 0/98 dead transitions. [2024-11-09 10:59:56,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 98 transitions, 740 flow [2024-11-09 10:59:56,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:59:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:59:56,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2024-11-09 10:59:56,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5131578947368421 [2024-11-09 10:59:56,795 INFO L175 Difference]: Start difference. First operand has 74 places, 60 transitions, 354 flow. Second operand 6 states and 117 transitions. [2024-11-09 10:59:56,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 98 transitions, 740 flow [2024-11-09 10:59:56,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 98 transitions, 710 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-09 10:59:56,805 INFO L231 Difference]: Finished difference. Result has 77 places, 61 transitions, 373 flow [2024-11-09 10:59:56,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=373, PETRI_PLACES=77, PETRI_TRANSITIONS=61} [2024-11-09 10:59:56,806 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 41 predicate places. [2024-11-09 10:59:56,806 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 61 transitions, 373 flow [2024-11-09 10:59:56,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-09 10:59:56,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:56,806 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:56,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:59:56,807 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:56,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:56,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1585006551, now seen corresponding path program 2 times [2024-11-09 10:59:56,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:56,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694131985] [2024-11-09 10:59:56,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:56,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:56,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:56,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694131985] [2024-11-09 10:59:56,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694131985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:59:56,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912169033] [2024-11-09 10:59:56,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 10:59:56,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:56,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:59:56,902 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:59:56,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 10:59:56,946 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 10:59:56,946 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:59:56,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 10:59:56,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:59:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:57,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:59:57,090 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:57,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912169033] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:59:57,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:59:57,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-09 10:59:57,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262269656] [2024-11-09 10:59:57,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:59:57,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 10:59:57,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:57,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 10:59:57,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2024-11-09 10:59:57,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:57,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 61 transitions, 373 flow. Second operand has 23 states, 23 states have (on average 11.173913043478262) internal successors, (257), 23 states have internal predecessors, (257), 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) [2024-11-09 10:59:57,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:57,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:57,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:57,710 INFO L124 PetriNetUnfolderBase]: 1094/2068 cut-off events. [2024-11-09 10:59:57,710 INFO L125 PetriNetUnfolderBase]: For 15606/15606 co-relation queries the response was YES. [2024-11-09 10:59:57,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7436 conditions, 2068 events. 1094/2068 cut-off events. For 15606/15606 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11360 event pairs, 143 based on Foata normal form. 264/2330 useless extension candidates. Maximal degree in co-relation 5588. Up to 385 conditions per place. [2024-11-09 10:59:57,724 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 297 selfloop transitions, 40 changer transitions 0/345 dead transitions. [2024-11-09 10:59:57,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 345 transitions, 2689 flow [2024-11-09 10:59:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 10:59:57,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-09 10:59:57,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 490 transitions. [2024-11-09 10:59:57,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5157894736842106 [2024-11-09 10:59:57,726 INFO L175 Difference]: Start difference. First operand has 77 places, 61 transitions, 373 flow. Second operand 25 states and 490 transitions. [2024-11-09 10:59:57,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 345 transitions, 2689 flow [2024-11-09 10:59:57,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 345 transitions, 2558 flow, removed 55 selfloop flow, removed 3 redundant places. [2024-11-09 10:59:57,748 INFO L231 Difference]: Finished difference. Result has 110 places, 79 transitions, 660 flow [2024-11-09 10:59:57,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=660, PETRI_PLACES=110, PETRI_TRANSITIONS=79} [2024-11-09 10:59:57,749 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 74 predicate places. [2024-11-09 10:59:57,750 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 79 transitions, 660 flow [2024-11-09 10:59:57,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.173913043478262) internal successors, (257), 23 states have internal predecessors, (257), 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) [2024-11-09 10:59:57,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:57,750 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:57,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 10:59:57,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:57,955 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:57,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:57,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1091497147, now seen corresponding path program 1 times [2024-11-09 10:59:57,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:57,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519668811] [2024-11-09 10:59:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:57,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:58,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:58,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519668811] [2024-11-09 10:59:58,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519668811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:59:58,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633949922] [2024-11-09 10:59:58,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:58,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:58,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:59:58,017 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:59:58,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 10:59:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:58,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 10:59:58,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:59:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:58,102 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:59:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:58,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633949922] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:59:58,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:59:58,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-09 10:59:58,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665782474] [2024-11-09 10:59:58,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:59:58,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 10:59:58,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:58,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 10:59:58,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-09 10:59:58,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:58,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 79 transitions, 660 flow. Second operand has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 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) [2024-11-09 10:59:58,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:58,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:58,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:58,495 INFO L124 PetriNetUnfolderBase]: 1175/2227 cut-off events. [2024-11-09 10:59:58,495 INFO L125 PetriNetUnfolderBase]: For 24710/24710 co-relation queries the response was YES. [2024-11-09 10:59:58,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9303 conditions, 2227 events. 1175/2227 cut-off events. For 24710/24710 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 12628 event pairs, 265 based on Foata normal form. 54/2279 useless extension candidates. Maximal degree in co-relation 6912. Up to 876 conditions per place. [2024-11-09 10:59:58,508 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 119 selfloop transitions, 24 changer transitions 0/151 dead transitions. [2024-11-09 10:59:58,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 151 transitions, 1475 flow [2024-11-09 10:59:58,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:59:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:59:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 166 transitions. [2024-11-09 10:59:58,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4853801169590643 [2024-11-09 10:59:58,509 INFO L175 Difference]: Start difference. First operand has 110 places, 79 transitions, 660 flow. Second operand 9 states and 166 transitions. [2024-11-09 10:59:58,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 151 transitions, 1475 flow [2024-11-09 10:59:58,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 151 transitions, 1235 flow, removed 84 selfloop flow, removed 12 redundant places. [2024-11-09 10:59:58,549 INFO L231 Difference]: Finished difference. Result has 109 places, 82 transitions, 584 flow [2024-11-09 10:59:58,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=584, PETRI_PLACES=109, PETRI_TRANSITIONS=82} [2024-11-09 10:59:58,550 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 73 predicate places. [2024-11-09 10:59:58,550 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 82 transitions, 584 flow [2024-11-09 10:59:58,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 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) [2024-11-09 10:59:58,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:58,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:58,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 10:59:58,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:58,751 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:58,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:58,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1678074481, now seen corresponding path program 1 times [2024-11-09 10:59:58,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:58,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848385271] [2024-11-09 10:59:58,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:58,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:58,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:58,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848385271] [2024-11-09 10:59:58,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848385271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:59:58,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394531774] [2024-11-09 10:59:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:58,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:58,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:59:58,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:59:58,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 10:59:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:58,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 10:59:58,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:59:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:58,888 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:59:58,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:58,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394531774] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:59:58,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:59:58,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-09 10:59:58,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707773274] [2024-11-09 10:59:58,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:59:58,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 10:59:58,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:58,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 10:59:58,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-09 10:59:58,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:58,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 82 transitions, 584 flow. Second operand has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 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) [2024-11-09 10:59:58,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:58,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:58,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:59,285 INFO L124 PetriNetUnfolderBase]: 1313/2448 cut-off events. [2024-11-09 10:59:59,285 INFO L125 PetriNetUnfolderBase]: For 21106/21106 co-relation queries the response was YES. [2024-11-09 10:59:59,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9203 conditions, 2448 events. 1313/2448 cut-off events. For 21106/21106 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 13879 event pairs, 146 based on Foata normal form. 93/2539 useless extension candidates. Maximal degree in co-relation 6370. Up to 964 conditions per place. [2024-11-09 10:59:59,301 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 147 selfloop transitions, 24 changer transitions 0/179 dead transitions. [2024-11-09 10:59:59,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 179 transitions, 1582 flow [2024-11-09 10:59:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:59:59,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:59:59,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2024-11-09 10:59:59,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5058479532163743 [2024-11-09 10:59:59,307 INFO L175 Difference]: Start difference. First operand has 109 places, 82 transitions, 584 flow. Second operand 9 states and 173 transitions. [2024-11-09 10:59:59,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 179 transitions, 1582 flow [2024-11-09 10:59:59,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 179 transitions, 1504 flow, removed 15 selfloop flow, removed 5 redundant places. [2024-11-09 10:59:59,349 INFO L231 Difference]: Finished difference. Result has 115 places, 85 transitions, 604 flow [2024-11-09 10:59:59,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=604, PETRI_PLACES=115, PETRI_TRANSITIONS=85} [2024-11-09 10:59:59,350 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 79 predicate places. [2024-11-09 10:59:59,350 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 85 transitions, 604 flow [2024-11-09 10:59:59,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 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) [2024-11-09 10:59:59,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:59,350 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:59,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 10:59:59,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:59,551 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 10:59:59,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:59,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1646948488, now seen corresponding path program 2 times [2024-11-09 10:59:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:59,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681330162] [2024-11-09 10:59:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:59,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:59,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:59,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681330162] [2024-11-09 10:59:59,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681330162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:59:59,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442589068] [2024-11-09 10:59:59,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 10:59:59,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:59:59,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:59:59,634 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:59:59,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 10:59:59,686 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 10:59:59,686 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:59:59,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 10:59:59,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:59:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:59,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:59:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:59,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442589068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:59:59,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:59:59,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-09 10:59:59,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562354] [2024-11-09 10:59:59,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:59:59,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 10:59:59,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:59,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 10:59:59,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2024-11-09 10:59:59,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 10:59:59,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 85 transitions, 604 flow. Second operand has 23 states, 23 states have (on average 11.347826086956522) internal successors, (261), 23 states have internal predecessors, (261), 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) [2024-11-09 10:59:59,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:59,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 10:59:59,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:00,603 INFO L124 PetriNetUnfolderBase]: 1973/3637 cut-off events. [2024-11-09 11:00:00,603 INFO L125 PetriNetUnfolderBase]: For 59123/59123 co-relation queries the response was YES. [2024-11-09 11:00:00,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14469 conditions, 3637 events. 1973/3637 cut-off events. For 59123/59123 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 21286 event pairs, 348 based on Foata normal form. 444/4079 useless extension candidates. Maximal degree in co-relation 11311. Up to 822 conditions per place. [2024-11-09 11:00:00,629 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 468 selfloop transitions, 46 changer transitions 0/522 dead transitions. [2024-11-09 11:00:00,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 522 transitions, 4531 flow [2024-11-09 11:00:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 11:00:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-09 11:00:00,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 487 transitions. [2024-11-09 11:00:00,633 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5126315789473684 [2024-11-09 11:00:00,633 INFO L175 Difference]: Start difference. First operand has 115 places, 85 transitions, 604 flow. Second operand 25 states and 487 transitions. [2024-11-09 11:00:00,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 522 transitions, 4531 flow [2024-11-09 11:00:00,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 522 transitions, 4421 flow, removed 15 selfloop flow, removed 5 redundant places. [2024-11-09 11:00:00,695 INFO L231 Difference]: Finished difference. Result has 146 places, 103 transitions, 868 flow [2024-11-09 11:00:00,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=868, PETRI_PLACES=146, PETRI_TRANSITIONS=103} [2024-11-09 11:00:00,696 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 110 predicate places. [2024-11-09 11:00:00,696 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 103 transitions, 868 flow [2024-11-09 11:00:00,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.347826086956522) internal successors, (261), 23 states have internal predecessors, (261), 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) [2024-11-09 11:00:00,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:00,696 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:00,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 11:00:00,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:00,897 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:00,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:00,898 INFO L85 PathProgramCache]: Analyzing trace with hash 532847774, now seen corresponding path program 2 times [2024-11-09 11:00:00,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:00,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982343311] [2024-11-09 11:00:00,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:00,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:01,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:01,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982343311] [2024-11-09 11:00:01,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982343311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:01,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322245838] [2024-11-09 11:00:01,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:00:01,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:01,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:01,019 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:01,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 11:00:01,068 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:00:01,068 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:01,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 11:00:01,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:01,130 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:01,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:00:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:01,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322245838] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:00:01,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:00:01,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-09 11:00:01,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907857425] [2024-11-09 11:00:01,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:00:01,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 11:00:01,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 11:00:01,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2024-11-09 11:00:01,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:01,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 103 transitions, 868 flow. Second operand has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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) [2024-11-09 11:00:01,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:01,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:01,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:01,981 INFO L124 PetriNetUnfolderBase]: 2243/4051 cut-off events. [2024-11-09 11:00:01,981 INFO L125 PetriNetUnfolderBase]: For 93649/93649 co-relation queries the response was YES. [2024-11-09 11:00:01,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18744 conditions, 4051 events. 2243/4051 cut-off events. For 93649/93649 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 23698 event pairs, 280 based on Foata normal form. 180/4229 useless extension candidates. Maximal degree in co-relation 14006. Up to 1581 conditions per place. [2024-11-09 11:00:02,003 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 254 selfloop transitions, 36 changer transitions 0/298 dead transitions. [2024-11-09 11:00:02,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 298 transitions, 3465 flow [2024-11-09 11:00:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 11:00:02,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 11:00:02,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 271 transitions. [2024-11-09 11:00:02,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47543859649122805 [2024-11-09 11:00:02,006 INFO L175 Difference]: Start difference. First operand has 146 places, 103 transitions, 868 flow. Second operand 15 states and 271 transitions. [2024-11-09 11:00:02,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 298 transitions, 3465 flow [2024-11-09 11:00:02,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 298 transitions, 2673 flow, removed 312 selfloop flow, removed 12 redundant places. [2024-11-09 11:00:02,127 INFO L231 Difference]: Finished difference. Result has 154 places, 109 transitions, 846 flow [2024-11-09 11:00:02,127 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=846, PETRI_PLACES=154, PETRI_TRANSITIONS=109} [2024-11-09 11:00:02,127 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 118 predicate places. [2024-11-09 11:00:02,128 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 109 transitions, 846 flow [2024-11-09 11:00:02,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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) [2024-11-09 11:00:02,128 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:02,128 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:02,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 11:00:02,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:02,330 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:02,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1358272447, now seen corresponding path program 2 times [2024-11-09 11:00:02,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:02,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451734790] [2024-11-09 11:00:02,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:02,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:02,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:02,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451734790] [2024-11-09 11:00:02,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451734790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:02,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958545267] [2024-11-09 11:00:02,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:00:02,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:02,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:02,406 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:02,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 11:00:02,448 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:00:02,448 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:02,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 11:00:02,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:02,506 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:02,506 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:00:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:02,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958545267] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:00:02,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:00:02,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-09 11:00:02,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430188202] [2024-11-09 11:00:02,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:00:02,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 11:00:02,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:02,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 11:00:02,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2024-11-09 11:00:02,593 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:02,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 109 transitions, 846 flow. Second operand has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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) [2024-11-09 11:00:02,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:02,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:02,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:03,342 INFO L124 PetriNetUnfolderBase]: 2519/4497 cut-off events. [2024-11-09 11:00:03,343 INFO L125 PetriNetUnfolderBase]: For 111006/111006 co-relation queries the response was YES. [2024-11-09 11:00:03,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19191 conditions, 4497 events. 2519/4497 cut-off events. For 111006/111006 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 26423 event pairs, 296 based on Foata normal form. 186/4683 useless extension candidates. Maximal degree in co-relation 14315. Up to 2026 conditions per place. [2024-11-09 11:00:03,374 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 273 selfloop transitions, 36 changer transitions 0/317 dead transitions. [2024-11-09 11:00:03,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 317 transitions, 3056 flow [2024-11-09 11:00:03,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 11:00:03,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 11:00:03,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 284 transitions. [2024-11-09 11:00:03,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4982456140350877 [2024-11-09 11:00:03,376 INFO L175 Difference]: Start difference. First operand has 154 places, 109 transitions, 846 flow. Second operand 15 states and 284 transitions. [2024-11-09 11:00:03,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 317 transitions, 3056 flow [2024-11-09 11:00:03,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 317 transitions, 2916 flow, removed 37 selfloop flow, removed 8 redundant places. [2024-11-09 11:00:03,583 INFO L231 Difference]: Finished difference. Result has 166 places, 115 transitions, 882 flow [2024-11-09 11:00:03,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=882, PETRI_PLACES=166, PETRI_TRANSITIONS=115} [2024-11-09 11:00:03,584 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 130 predicate places. [2024-11-09 11:00:03,584 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 115 transitions, 882 flow [2024-11-09 11:00:03,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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) [2024-11-09 11:00:03,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:03,585 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:03,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 11:00:03,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 11:00:03,786 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:03,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:03,786 INFO L85 PathProgramCache]: Analyzing trace with hash 386214647, now seen corresponding path program 3 times [2024-11-09 11:00:03,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:03,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769235944] [2024-11-09 11:00:03,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:03,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:03,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:03,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769235944] [2024-11-09 11:00:03,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769235944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:03,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722304748] [2024-11-09 11:00:03,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:00:03,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:03,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:03,972 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:03,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 11:00:04,016 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 11:00:04,016 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:04,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 11:00:04,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:04,084 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 11:00:04,084 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:00:04,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722304748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:00:04,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:00:04,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 20 [2024-11-09 11:00:04,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354097104] [2024-11-09 11:00:04,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:00:04,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 11:00:04,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:04,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 11:00:04,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-09 11:00:04,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:04,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 115 transitions, 882 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:00:04,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:04,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:04,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:04,686 INFO L124 PetriNetUnfolderBase]: 2586/4680 cut-off events. [2024-11-09 11:00:04,686 INFO L125 PetriNetUnfolderBase]: For 100961/100961 co-relation queries the response was YES. [2024-11-09 11:00:04,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20470 conditions, 4680 events. 2586/4680 cut-off events. For 100961/100961 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 27837 event pairs, 698 based on Foata normal form. 86/4764 useless extension candidates. Maximal degree in co-relation 14894. Up to 1617 conditions per place. [2024-11-09 11:00:04,715 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 228 selfloop transitions, 32 changer transitions 0/268 dead transitions. [2024-11-09 11:00:04,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 268 transitions, 2785 flow [2024-11-09 11:00:04,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 11:00:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 11:00:04,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 184 transitions. [2024-11-09 11:00:04,720 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5380116959064327 [2024-11-09 11:00:04,720 INFO L175 Difference]: Start difference. First operand has 166 places, 115 transitions, 882 flow. Second operand 9 states and 184 transitions. [2024-11-09 11:00:04,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 268 transitions, 2785 flow [2024-11-09 11:00:04,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 268 transitions, 2395 flow, removed 148 selfloop flow, removed 8 redundant places. [2024-11-09 11:00:04,945 INFO L231 Difference]: Finished difference. Result has 168 places, 121 transitions, 974 flow [2024-11-09 11:00:04,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=974, PETRI_PLACES=168, PETRI_TRANSITIONS=121} [2024-11-09 11:00:04,946 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 132 predicate places. [2024-11-09 11:00:04,946 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 121 transitions, 974 flow [2024-11-09 11:00:04,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:00:04,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:04,946 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:04,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 11:00:05,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 11:00:05,147 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:05,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1968412616, now seen corresponding path program 3 times [2024-11-09 11:00:05,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:05,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56232753] [2024-11-09 11:00:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:05,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56232753] [2024-11-09 11:00:05,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56232753] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668613176] [2024-11-09 11:00:05,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:00:05,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:05,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:05,312 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:05,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 11:00:05,355 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 11:00:05,355 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:05,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 11:00:05,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:05,408 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 11:00:05,408 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:00:05,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668613176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:00:05,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:00:05,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 20 [2024-11-09 11:00:05,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406923437] [2024-11-09 11:00:05,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:00:05,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 11:00:05,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:05,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 11:00:05,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-09 11:00:05,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:05,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 121 transitions, 974 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-09 11:00:05,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:05,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:05,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:05,927 INFO L124 PetriNetUnfolderBase]: 2623/4641 cut-off events. [2024-11-09 11:00:05,927 INFO L125 PetriNetUnfolderBase]: For 117692/117692 co-relation queries the response was YES. [2024-11-09 11:00:05,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20868 conditions, 4641 events. 2623/4641 cut-off events. For 117692/117692 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 26852 event pairs, 680 based on Foata normal form. 91/4730 useless extension candidates. Maximal degree in co-relation 19281. Up to 1736 conditions per place. [2024-11-09 11:00:05,957 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 229 selfloop transitions, 34 changer transitions 0/271 dead transitions. [2024-11-09 11:00:05,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 271 transitions, 2824 flow [2024-11-09 11:00:05,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 11:00:05,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 11:00:05,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 177 transitions. [2024-11-09 11:00:05,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2024-11-09 11:00:05,958 INFO L175 Difference]: Start difference. First operand has 168 places, 121 transitions, 974 flow. Second operand 9 states and 177 transitions. [2024-11-09 11:00:05,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 271 transitions, 2824 flow [2024-11-09 11:00:06,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 271 transitions, 2370 flow, removed 220 selfloop flow, removed 2 redundant places. [2024-11-09 11:00:06,242 INFO L231 Difference]: Finished difference. Result has 176 places, 127 transitions, 1093 flow [2024-11-09 11:00:06,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1093, PETRI_PLACES=176, PETRI_TRANSITIONS=127} [2024-11-09 11:00:06,243 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 140 predicate places. [2024-11-09 11:00:06,244 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 127 transitions, 1093 flow [2024-11-09 11:00:06,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-09 11:00:06,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:06,244 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:06,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 11:00:06,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 11:00:06,445 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:06,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:06,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1476948354, now seen corresponding path program 3 times [2024-11-09 11:00:06,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:06,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489847235] [2024-11-09 11:00:06,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:06,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:06,616 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:06,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:06,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489847235] [2024-11-09 11:00:06,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489847235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:06,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850998744] [2024-11-09 11:00:06,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:00:06,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:06,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:06,619 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:06,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 11:00:06,667 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 11:00:06,667 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:06,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 11:00:06,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:06,822 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:00:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:07,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850998744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:00:07,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:00:07,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 40 [2024-11-09 11:00:07,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871194757] [2024-11-09 11:00:07,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:00:07,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-09 11:00:07,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:07,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-09 11:00:07,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=1075, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 11:00:07,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:07,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 127 transitions, 1093 flow. Second operand has 41 states, 41 states have (on average 11.292682926829269) internal successors, (463), 41 states have internal predecessors, (463), 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) [2024-11-09 11:00:07,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:07,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:07,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:08,189 INFO L124 PetriNetUnfolderBase]: 3127/5509 cut-off events. [2024-11-09 11:00:08,189 INFO L125 PetriNetUnfolderBase]: For 105308/105308 co-relation queries the response was YES. [2024-11-09 11:00:08,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23814 conditions, 5509 events. 3127/5509 cut-off events. For 105308/105308 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 31288 event pairs, 540 based on Foata normal form. 336/5845 useless extension candidates. Maximal degree in co-relation 22952. Up to 2128 conditions per place. [2024-11-09 11:00:08,224 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 431 selfloop transitions, 52 changer transitions 0/491 dead transitions. [2024-11-09 11:00:08,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 491 transitions, 5182 flow [2024-11-09 11:00:08,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 11:00:08,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-09 11:00:08,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 456 transitions. [2024-11-09 11:00:08,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-09 11:00:08,225 INFO L175 Difference]: Start difference. First operand has 176 places, 127 transitions, 1093 flow. Second operand 27 states and 456 transitions. [2024-11-09 11:00:08,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 491 transitions, 5182 flow [2024-11-09 11:00:08,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 491 transitions, 4187 flow, removed 473 selfloop flow, removed 2 redundant places. [2024-11-09 11:00:08,347 INFO L231 Difference]: Finished difference. Result has 212 places, 139 transitions, 1276 flow [2024-11-09 11:00:08,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1276, PETRI_PLACES=212, PETRI_TRANSITIONS=139} [2024-11-09 11:00:08,348 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 176 predicate places. [2024-11-09 11:00:08,348 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 139 transitions, 1276 flow [2024-11-09 11:00:08,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 11.292682926829269) internal successors, (463), 41 states have internal predecessors, (463), 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) [2024-11-09 11:00:08,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:08,349 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:08,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 11:00:08,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 11:00:08,554 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:08,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:08,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1132519231, now seen corresponding path program 3 times [2024-11-09 11:00:08,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:08,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859897180] [2024-11-09 11:00:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:08,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:08,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:08,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859897180] [2024-11-09 11:00:08,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859897180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:08,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028501227] [2024-11-09 11:00:08,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:00:08,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:08,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:08,712 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:08,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 11:00:08,760 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 11:00:08,760 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:08,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 11:00:08,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:08,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:00:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:09,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028501227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:00:09,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:00:09,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 40 [2024-11-09 11:00:09,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934695583] [2024-11-09 11:00:09,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:00:09,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-09 11:00:09,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:09,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-09 11:00:09,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=1075, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 11:00:09,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:09,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 139 transitions, 1276 flow. Second operand has 41 states, 41 states have (on average 11.292682926829269) internal successors, (463), 41 states have internal predecessors, (463), 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) [2024-11-09 11:00:09,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:09,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:09,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:10,289 INFO L124 PetriNetUnfolderBase]: 3643/6378 cut-off events. [2024-11-09 11:00:10,289 INFO L125 PetriNetUnfolderBase]: For 52603/52603 co-relation queries the response was YES. [2024-11-09 11:00:10,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26721 conditions, 6378 events. 3643/6378 cut-off events. For 52603/52603 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 36430 event pairs, 812 based on Foata normal form. 348/6726 useless extension candidates. Maximal degree in co-relation 25884. Up to 2971 conditions per place. [2024-11-09 11:00:10,338 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 468 selfloop transitions, 52 changer transitions 0/528 dead transitions. [2024-11-09 11:00:10,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 528 transitions, 4638 flow [2024-11-09 11:00:10,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 11:00:10,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-09 11:00:10,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 481 transitions. [2024-11-09 11:00:10,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46881091617933723 [2024-11-09 11:00:10,340 INFO L175 Difference]: Start difference. First operand has 212 places, 139 transitions, 1276 flow. Second operand 27 states and 481 transitions. [2024-11-09 11:00:10,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 528 transitions, 4638 flow [2024-11-09 11:00:10,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 528 transitions, 4406 flow, removed 73 selfloop flow, removed 14 redundant places. [2024-11-09 11:00:10,470 INFO L231 Difference]: Finished difference. Result has 236 places, 151 transitions, 1348 flow [2024-11-09 11:00:10,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1348, PETRI_PLACES=236, PETRI_TRANSITIONS=151} [2024-11-09 11:00:10,470 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 200 predicate places. [2024-11-09 11:00:10,470 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 151 transitions, 1348 flow [2024-11-09 11:00:10,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 11.292682926829269) internal successors, (463), 41 states have internal predecessors, (463), 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) [2024-11-09 11:00:10,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:10,471 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:10,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 11:00:10,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 11:00:10,671 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:10,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:10,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2033938980, now seen corresponding path program 4 times [2024-11-09 11:00:10,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:10,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641465756] [2024-11-09 11:00:10,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:10,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:11,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:11,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641465756] [2024-11-09 11:00:11,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641465756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:11,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956520174] [2024-11-09 11:00:11,074 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 11:00:11,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:11,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:11,075 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:11,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 11:00:11,123 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 11:00:11,124 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:11,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 11:00:11,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:11,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:00:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:12,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956520174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:00:12,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:00:12,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 76 [2024-11-09 11:00:12,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409463745] [2024-11-09 11:00:12,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:00:12,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-09 11:00:12,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:12,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-09 11:00:12,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2269, Invalid=3583, Unknown=0, NotChecked=0, Total=5852 [2024-11-09 11:00:12,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:12,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 151 transitions, 1348 flow. Second operand has 77 states, 77 states have (on average 11.155844155844155) internal successors, (859), 77 states have internal predecessors, (859), 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) [2024-11-09 11:00:12,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:12,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:12,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:14,497 INFO L124 PetriNetUnfolderBase]: 4651/8056 cut-off events. [2024-11-09 11:00:14,497 INFO L125 PetriNetUnfolderBase]: For 205368/205368 co-relation queries the response was YES. [2024-11-09 11:00:14,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33935 conditions, 8056 events. 4651/8056 cut-off events. For 205368/205368 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 43557 event pairs, 864 based on Foata normal form. 672/8728 useless extension candidates. Maximal degree in co-relation 33086. Up to 2992 conditions per place. [2024-11-09 11:00:14,560 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 803 selfloop transitions, 76 changer transitions 0/887 dead transitions. [2024-11-09 11:00:14,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 887 transitions, 7659 flow [2024-11-09 11:00:14,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 11:00:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-11-09 11:00:14,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 852 transitions. [2024-11-09 11:00:14,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43962848297213625 [2024-11-09 11:00:14,562 INFO L175 Difference]: Start difference. First operand has 236 places, 151 transitions, 1348 flow. Second operand 51 states and 852 transitions. [2024-11-09 11:00:14,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 887 transitions, 7659 flow [2024-11-09 11:00:14,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 887 transitions, 7427 flow, removed 73 selfloop flow, removed 14 redundant places. [2024-11-09 11:00:14,742 INFO L231 Difference]: Finished difference. Result has 296 places, 175 transitions, 1660 flow [2024-11-09 11:00:14,742 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=1660, PETRI_PLACES=296, PETRI_TRANSITIONS=175} [2024-11-09 11:00:14,743 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 260 predicate places. [2024-11-09 11:00:14,743 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 175 transitions, 1660 flow [2024-11-09 11:00:14,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 11.155844155844155) internal successors, (859), 77 states have internal predecessors, (859), 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) [2024-11-09 11:00:14,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:14,743 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:14,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 11:00:14,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 11:00:14,944 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:14,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1102351935, now seen corresponding path program 4 times [2024-11-09 11:00:14,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:14,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030394479] [2024-11-09 11:00:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:14,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:15,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:15,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030394479] [2024-11-09 11:00:15,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030394479] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:15,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485176037] [2024-11-09 11:00:15,337 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 11:00:15,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:15,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:15,338 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:15,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 11:00:15,387 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 11:00:15,387 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:15,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 11:00:15,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:15,744 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:15,744 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:00:16,335 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:16,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485176037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:00:16,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:00:16,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 76 [2024-11-09 11:00:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896910477] [2024-11-09 11:00:16,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:00:16,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-09 11:00:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-09 11:00:16,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2269, Invalid=3583, Unknown=0, NotChecked=0, Total=5852 [2024-11-09 11:00:16,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:16,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 175 transitions, 1660 flow. Second operand has 77 states, 77 states have (on average 11.155844155844155) internal successors, (859), 77 states have internal predecessors, (859), 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) [2024-11-09 11:00:16,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:16,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:16,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:19,434 INFO L124 PetriNetUnfolderBase]: 5683/9786 cut-off events. [2024-11-09 11:00:19,434 INFO L125 PetriNetUnfolderBase]: For 237933/237933 co-relation queries the response was YES. [2024-11-09 11:00:19,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42585 conditions, 9786 events. 5683/9786 cut-off events. For 237933/237933 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 53544 event pairs, 1436 based on Foata normal form. 696/10482 useless extension candidates. Maximal degree in co-relation 41712. Up to 4651 conditions per place. [2024-11-09 11:00:19,511 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 876 selfloop transitions, 76 changer transitions 0/960 dead transitions. [2024-11-09 11:00:19,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 960 transitions, 8262 flow [2024-11-09 11:00:19,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 11:00:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-11-09 11:00:19,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 901 transitions. [2024-11-09 11:00:19,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2024-11-09 11:00:19,512 INFO L175 Difference]: Start difference. First operand has 296 places, 175 transitions, 1660 flow. Second operand 51 states and 901 transitions. [2024-11-09 11:00:19,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 960 transitions, 8262 flow [2024-11-09 11:00:19,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 960 transitions, 7862 flow, removed 145 selfloop flow, removed 26 redundant places. [2024-11-09 11:00:19,791 INFO L231 Difference]: Finished difference. Result has 344 places, 199 transitions, 1804 flow [2024-11-09 11:00:19,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1266, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=1804, PETRI_PLACES=344, PETRI_TRANSITIONS=199} [2024-11-09 11:00:19,792 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 308 predicate places. [2024-11-09 11:00:19,792 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 199 transitions, 1804 flow [2024-11-09 11:00:19,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 11.155844155844155) internal successors, (859), 77 states have internal predecessors, (859), 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) [2024-11-09 11:00:19,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:19,793 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:19,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 11:00:19,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:19,993 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:19,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:19,993 INFO L85 PathProgramCache]: Analyzing trace with hash -453000225, now seen corresponding path program 1 times [2024-11-09 11:00:19,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:19,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828381984] [2024-11-09 11:00:19,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:19,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:20,015 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-09 11:00:20,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:20,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828381984] [2024-11-09 11:00:20,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828381984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:00:20,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:00:20,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 11:00:20,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236312770] [2024-11-09 11:00:20,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:00:20,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:00:20,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:20,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:00:20,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:00:20,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-09 11:00:20,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 199 transitions, 1804 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-09 11:00:20,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:20,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-09 11:00:20,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:21,691 INFO L124 PetriNetUnfolderBase]: 5644/9744 cut-off events. [2024-11-09 11:00:21,691 INFO L125 PetriNetUnfolderBase]: For 100296/100299 co-relation queries the response was YES. [2024-11-09 11:00:21,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40465 conditions, 9744 events. 5644/9744 cut-off events. For 100296/100299 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 53297 event pairs, 4578 based on Foata normal form. 5/9734 useless extension candidates. Maximal degree in co-relation 39572. Up to 9412 conditions per place. [2024-11-09 11:00:21,879 INFO L140 encePairwiseOnDemand]: 36/38 looper letters, 135 selfloop transitions, 1 changer transitions 52/198 dead transitions. [2024-11-09 11:00:21,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 198 transitions, 2128 flow [2024-11-09 11:00:21,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:00:21,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 11:00:21,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2024-11-09 11:00:21,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2024-11-09 11:00:21,880 INFO L175 Difference]: Start difference. First operand has 344 places, 199 transitions, 1804 flow. Second operand 3 states and 53 transitions. [2024-11-09 11:00:21,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 198 transitions, 2128 flow [2024-11-09 11:00:22,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 198 transitions, 1734 flow, removed 145 selfloop flow, removed 26 redundant places. [2024-11-09 11:00:22,176 INFO L231 Difference]: Finished difference. Result has 319 places, 146 transitions, 875 flow [2024-11-09 11:00:22,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1408, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=875, PETRI_PLACES=319, PETRI_TRANSITIONS=146} [2024-11-09 11:00:22,176 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 283 predicate places. [2024-11-09 11:00:22,176 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 146 transitions, 875 flow [2024-11-09 11:00:22,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-09 11:00:22,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:22,176 INFO L204 CegarLoopForPetriNet]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:22,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 11:00:22,177 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:22,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:22,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1366844518, now seen corresponding path program 5 times [2024-11-09 11:00:22,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:22,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621610868] [2024-11-09 11:00:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:22,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:23,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:23,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621610868] [2024-11-09 11:00:23,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621610868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:23,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102729838] [2024-11-09 11:00:23,187 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 11:00:23,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:23,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:23,188 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:23,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 11:00:23,244 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-11-09 11:00:23,244 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:23,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-09 11:00:23,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:24,107 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:00:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:26,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102729838] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:00:26,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:00:26,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 148 [2024-11-09 11:00:26,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666360885] [2024-11-09 11:00:26,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:00:26,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2024-11-09 11:00:26,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:26,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2024-11-09 11:00:26,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9133, Invalid=12919, Unknown=0, NotChecked=0, Total=22052 [2024-11-09 11:00:26,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:26,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 146 transitions, 875 flow. Second operand has 149 states, 149 states have (on average 11.080536912751677) internal successors, (1651), 149 states have internal predecessors, (1651), 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) [2024-11-09 11:00:26,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:26,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:26,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:33,447 INFO L124 PetriNetUnfolderBase]: 6428/10982 cut-off events. [2024-11-09 11:00:33,447 INFO L125 PetriNetUnfolderBase]: For 1498106/1498106 co-relation queries the response was YES. [2024-11-09 11:00:33,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43832 conditions, 10982 events. 6428/10982 cut-off events. For 1498106/1498106 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 53293 event pairs, 1446 based on Foata normal form. 1344/12326 useless extension candidates. Maximal degree in co-relation 43689. Up to 3684 conditions per place. [2024-11-09 11:00:33,536 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 1503 selfloop transitions, 100 changer transitions 15/1624 dead transitions. [2024-11-09 11:00:33,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 1624 transitions, 13260 flow [2024-11-09 11:00:33,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-11-09 11:00:33,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2024-11-09 11:00:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 1639 transitions. [2024-11-09 11:00:33,538 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43567251461988304 [2024-11-09 11:00:33,538 INFO L175 Difference]: Start difference. First operand has 319 places, 146 transitions, 875 flow. Second operand 99 states and 1639 transitions. [2024-11-09 11:00:33,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 1624 transitions, 13260 flow [2024-11-09 11:00:33,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1624 transitions, 12763 flow, removed 248 selfloop flow, removed 5 redundant places. [2024-11-09 11:00:33,818 INFO L231 Difference]: Finished difference. Result has 434 places, 194 transitions, 1728 flow [2024-11-09 11:00:33,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=99, PETRI_FLOW=1728, PETRI_PLACES=434, PETRI_TRANSITIONS=194} [2024-11-09 11:00:33,819 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 398 predicate places. [2024-11-09 11:00:33,819 INFO L471 AbstractCegarLoop]: Abstraction has has 434 places, 194 transitions, 1728 flow [2024-11-09 11:00:33,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 11.080536912751677) internal successors, (1651), 149 states have internal predecessors, (1651), 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) [2024-11-09 11:00:33,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:33,820 INFO L204 CegarLoopForPetriNet]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:33,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-09 11:00:34,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:34,020 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:34,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:34,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1991273535, now seen corresponding path program 5 times [2024-11-09 11:00:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:34,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602223845] [2024-11-09 11:00:34,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:34,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:35,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:35,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:35,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602223845] [2024-11-09 11:00:35,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602223845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:35,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146039183] [2024-11-09 11:00:35,002 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 11:00:35,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:35,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:35,003 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:35,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 11:00:35,057 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-11-09 11:00:35,057 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:35,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-09 11:00:35,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:36,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:00:37,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:37,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146039183] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:00:37,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:00:37,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 148 [2024-11-09 11:00:37,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492373209] [2024-11-09 11:00:37,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:00:37,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2024-11-09 11:00:37,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:38,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2024-11-09 11:00:38,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9133, Invalid=12919, Unknown=0, NotChecked=0, Total=22052 [2024-11-09 11:00:38,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:38,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 194 transitions, 1728 flow. Second operand has 149 states, 149 states have (on average 11.080536912751677) internal successors, (1651), 149 states have internal predecessors, (1651), 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) [2024-11-09 11:00:38,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:38,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:38,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:46,888 INFO L124 PetriNetUnfolderBase]: 8492/14440 cut-off events. [2024-11-09 11:00:46,888 INFO L125 PetriNetUnfolderBase]: For 1636553/1636553 co-relation queries the response was YES. [2024-11-09 11:00:47,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62337 conditions, 14440 events. 8492/14440 cut-off events. For 1636553/1636553 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 73146 event pairs, 2618 based on Foata normal form. 1392/15832 useless extension candidates. Maximal degree in co-relation 62150. Up to 6946 conditions per place. [2024-11-09 11:00:47,035 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 1649 selfloop transitions, 100 changer transitions 14/1769 dead transitions. [2024-11-09 11:00:47,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1769 transitions, 14222 flow [2024-11-09 11:00:47,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-11-09 11:00:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2024-11-09 11:00:47,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 1736 transitions. [2024-11-09 11:00:47,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4614566719829878 [2024-11-09 11:00:47,038 INFO L175 Difference]: Start difference. First operand has 434 places, 194 transitions, 1728 flow. Second operand 99 states and 1736 transitions. [2024-11-09 11:00:47,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1769 transitions, 14222 flow [2024-11-09 11:00:48,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 1769 transitions, 13630 flow, removed 241 selfloop flow, removed 50 redundant places. [2024-11-09 11:00:48,044 INFO L231 Difference]: Finished difference. Result has 530 places, 242 transitions, 2016 flow [2024-11-09 11:00:48,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1142, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=99, PETRI_FLOW=2016, PETRI_PLACES=530, PETRI_TRANSITIONS=242} [2024-11-09 11:00:48,045 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 494 predicate places. [2024-11-09 11:00:48,045 INFO L471 AbstractCegarLoop]: Abstraction has has 530 places, 242 transitions, 2016 flow [2024-11-09 11:00:48,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 11.080536912751677) internal successors, (1651), 149 states have internal predecessors, (1651), 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) [2024-11-09 11:00:48,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:48,045 INFO L204 CegarLoopForPetriNet]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:48,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 11:00:48,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:48,246 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:00:48,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:48,246 INFO L85 PathProgramCache]: Analyzing trace with hash -228784548, now seen corresponding path program 6 times [2024-11-09 11:00:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:48,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515818386] [2024-11-09 11:00:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:52,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:52,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515818386] [2024-11-09 11:00:52,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515818386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:00:52,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271375558] [2024-11-09 11:00:52,022 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 11:00:52,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:00:52,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:00:52,023 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:00:52,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 11:00:52,106 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 48 check-sat command(s) [2024-11-09 11:00:52,106 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:00:52,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-09 11:00:52,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:00:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:55,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:00:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:58,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271375558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:00:58,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:00:58,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99, 99] total 203 [2024-11-09 11:00:58,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423953459] [2024-11-09 11:00:58,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:00:58,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 204 states [2024-11-09 11:00:58,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:58,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 204 interpolants. [2024-11-09 11:00:58,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15147, Invalid=26265, Unknown=0, NotChecked=0, Total=41412 [2024-11-09 11:00:58,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:00:58,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 242 transitions, 2016 flow. Second operand has 204 states, 204 states have (on average 11.063725490196079) internal successors, (2257), 204 states have internal predecessors, (2257), 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) [2024-11-09 11:00:58,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:58,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:00:58,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:01:11,568 INFO L124 PetriNetUnfolderBase]: 8786/14928 cut-off events. [2024-11-09 11:01:11,568 INFO L125 PetriNetUnfolderBase]: For 1156833/1156833 co-relation queries the response was YES. [2024-11-09 11:01:11,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62046 conditions, 14928 events. 8786/14928 cut-off events. For 1156833/1156833 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 75520 event pairs, 2742 based on Foata normal form. 196/15124 useless extension candidates. Maximal degree in co-relation 61811. Up to 7140 conditions per place. [2024-11-09 11:01:11,746 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 1656 selfloop transitions, 107 changer transitions 15/1784 dead transitions. [2024-11-09 11:01:11,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 1784 transitions, 14443 flow [2024-11-09 11:01:11,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-11-09 11:01:11,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2024-11-09 11:01:11,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 1710 transitions. [2024-11-09 11:01:11,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42452830188679247 [2024-11-09 11:01:11,748 INFO L175 Difference]: Start difference. First operand has 530 places, 242 transitions, 2016 flow. Second operand 106 states and 1710 transitions. [2024-11-09 11:01:11,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 1784 transitions, 14443 flow [2024-11-09 11:01:13,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 585 places, 1784 transitions, 13851 flow, removed 241 selfloop flow, removed 50 redundant places. [2024-11-09 11:01:13,361 INFO L231 Difference]: Finished difference. Result has 592 places, 249 transitions, 1744 flow [2024-11-09 11:01:13,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1430, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=106, PETRI_FLOW=1744, PETRI_PLACES=592, PETRI_TRANSITIONS=249} [2024-11-09 11:01:13,362 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 556 predicate places. [2024-11-09 11:01:13,362 INFO L471 AbstractCegarLoop]: Abstraction has has 592 places, 249 transitions, 1744 flow [2024-11-09 11:01:13,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 204 states, 204 states have (on average 11.063725490196079) internal successors, (2257), 204 states have internal predecessors, (2257), 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) [2024-11-09 11:01:13,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:01:13,363 INFO L204 CegarLoopForPetriNet]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:01:13,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 11:01:13,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:01:13,564 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 11:01:13,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:01:13,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1847218785, now seen corresponding path program 6 times [2024-11-09 11:01:13,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:01:13,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715603365] [2024-11-09 11:01:13,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:01:13,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:01:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:01:16,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:01:16,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:01:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715603365] [2024-11-09 11:01:16,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715603365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:01:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100711722] [2024-11-09 11:01:16,982 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 11:01:16,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:01:16,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:01:16,983 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:01:16,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 11:01:17,066 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 48 check-sat command(s) [2024-11-09 11:01:17,066 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:01:17,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-09 11:01:17,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:01:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:01:20,050 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:01:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:01:23,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100711722] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:01:23,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:01:23,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99, 99] total 202 [2024-11-09 11:01:23,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682779274] [2024-11-09 11:01:23,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:01:23,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2024-11-09 11:01:23,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:01:23,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2024-11-09 11:01:23,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14950, Invalid=26056, Unknown=0, NotChecked=0, Total=41006 [2024-11-09 11:01:23,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-09 11:01:23,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 592 places, 249 transitions, 1744 flow. Second operand has 203 states, 203 states have (on average 11.064039408866995) internal successors, (2246), 203 states have internal predecessors, (2246), 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) [2024-11-09 11:01:23,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:01:23,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-09 11:01:23,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand