./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:44:13,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:44:13,982 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:44:13,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:44:13,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:44:14,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:44:14,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:44:14,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:44:14,012 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:44:14,012 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:44:14,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:44:14,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:44:14,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:44:14,014 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:44:14,016 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:44:14,017 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:44:14,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:44:14,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:44:14,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:44:14,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:44:14,018 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:44:14,018 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:44:14,018 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:44:14,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:44:14,019 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:44:14,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:44:14,019 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:44:14,019 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:44:14,019 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:44:14,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:44:14,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:44:14,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:44:14,021 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:44:14,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:44:14,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:44:14,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:44:14,022 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:44:14,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:44:14,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:44:14,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:44:14,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:44:14,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:44:14,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b [2024-11-22 21:44:14,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:44:14,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:44:14,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:44:14,242 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:44:14,242 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:44:14,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-22 21:44:15,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:44:15,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:44:15,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-22 21:44:15,584 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b15df857/1ebb0fdfe855402b9a5abf023948935e/FLAGcdbf8d9a8 [2024-11-22 21:44:15,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b15df857/1ebb0fdfe855402b9a5abf023948935e [2024-11-22 21:44:15,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:44:15,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:44:15,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:44:15,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:44:16,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:44:16,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:44:15" (1/1) ... [2024-11-22 21:44:16,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d89d3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16, skipping insertion in model container [2024-11-22 21:44:16,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:44:15" (1/1) ... [2024-11-22 21:44:16,018 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:44:16,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:44:16,192 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:44:16,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:44:16,224 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:44:16,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16 WrapperNode [2024-11-22 21:44:16,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:44:16,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:44:16,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:44:16,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:44:16,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,254 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 141 [2024-11-22 21:44:16,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:44:16,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:44:16,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:44:16,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:44:16,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,274 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]. [2024-11-22 21:44:16,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:44:16,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:44:16,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:44:16,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:44:16,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (1/1) ... [2024-11-22 21:44:16,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:44:16,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:44:16,316 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) [2024-11-22 21:44:16,321 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 [2024-11-22 21:44:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:44:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-22 21:44:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-22 21:44:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-22 21:44:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-22 21:44:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:44:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:44:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:44:16,361 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:44:16,453 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:44:16,455 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:44:16,658 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:44:16,659 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:44:16,772 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:44:16,774 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 21:44:16,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:44:16 BoogieIcfgContainer [2024-11-22 21:44:16,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:44:16,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:44:16,777 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:44:16,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:44:16,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:44:15" (1/3) ... [2024-11-22 21:44:16,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f46e004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:44:16, skipping insertion in model container [2024-11-22 21:44:16,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:44:16" (2/3) ... [2024-11-22 21:44:16,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f46e004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:44:16, skipping insertion in model container [2024-11-22 21:44:16,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:44:16" (3/3) ... [2024-11-22 21:44:16,782 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2024-11-22 21:44:16,797 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:44:16,797 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 21:44:16,797 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:44:16,839 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 21:44:16,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 126 flow [2024-11-22 21:44:16,893 INFO L124 PetriNetUnfolderBase]: 2/54 cut-off events. [2024-11-22 21:44:16,894 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:44:16,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 54 events. 2/54 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-22 21:44:16,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 56 transitions, 126 flow [2024-11-22 21:44:16,899 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 53 transitions, 118 flow [2024-11-22 21:44:16,909 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:44:16,915 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;@2068593d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:44:16,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-22 21:44:16,932 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:44:16,933 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-22 21:44:16,933 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:44:16,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:16,934 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:16,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:16,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:16,938 INFO L85 PathProgramCache]: Analyzing trace with hash 532631702, now seen corresponding path program 1 times [2024-11-22 21:44:16,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:16,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120977731] [2024-11-22 21:44:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:44:16,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:44:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:17,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:17,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120977731] [2024-11-22 21:44:17,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120977731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:17,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:17,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:44:17,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590834968] [2024-11-22 21:44:17,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:17,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:44:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:17,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:44:17,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:44:17,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2024-11-22 21:44:17,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2024-11-22 21:44:17,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:17,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2024-11-22 21:44:17,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:17,769 INFO L124 PetriNetUnfolderBase]: 168/427 cut-off events. [2024-11-22 21:44:17,772 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-22 21:44:17,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 427 events. 168/427 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1942 event pairs, 56 based on Foata normal form. 4/407 useless extension candidates. Maximal degree in co-relation 684. Up to 98 conditions per place. [2024-11-22 21:44:17,777 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 51 selfloop transitions, 10 changer transitions 12/94 dead transitions. [2024-11-22 21:44:17,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 373 flow [2024-11-22 21:44:17,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:44:17,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:44:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2024-11-22 21:44:17,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6004464285714286 [2024-11-22 21:44:17,795 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 118 flow. Second operand 8 states and 269 transitions. [2024-11-22 21:44:17,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 373 flow [2024-11-22 21:44:17,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 94 transitions, 347 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:44:17,804 INFO L231 Difference]: Finished difference. Result has 62 places, 56 transitions, 150 flow [2024-11-22 21:44:17,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=62, PETRI_TRANSITIONS=56} [2024-11-22 21:44:17,809 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2024-11-22 21:44:17,810 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 150 flow [2024-11-22 21:44:17,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2024-11-22 21:44:17,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:17,810 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:17,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:44:17,811 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:17,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:17,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1887306448, now seen corresponding path program 2 times [2024-11-22 21:44:17,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:17,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712702717] [2024-11-22 21:44:17,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:44:17,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:17,836 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:44:17,836 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:44:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:17,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:17,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712702717] [2024-11-22 21:44:17,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712702717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:17,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:17,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:44:17,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513159818] [2024-11-22 21:44:17,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:17,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:44:17,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:17,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:44:17,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:44:17,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-22 21:44:17,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2024-11-22 21:44:17,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:17,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-22 21:44:17,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:18,129 INFO L124 PetriNetUnfolderBase]: 330/757 cut-off events. [2024-11-22 21:44:18,129 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-22 21:44:18,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 757 events. 330/757 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3878 event pairs, 46 based on Foata normal form. 0/720 useless extension candidates. Maximal degree in co-relation 1469. Up to 418 conditions per place. [2024-11-22 21:44:18,134 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 50 selfloop transitions, 18 changer transitions 6/98 dead transitions. [2024-11-22 21:44:18,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 98 transitions, 385 flow [2024-11-22 21:44:18,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:44:18,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:44:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2024-11-22 21:44:18,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5867346938775511 [2024-11-22 21:44:18,138 INFO L175 Difference]: Start difference. First operand has 62 places, 56 transitions, 150 flow. Second operand 7 states and 230 transitions. [2024-11-22 21:44:18,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 98 transitions, 385 flow [2024-11-22 21:44:18,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 98 transitions, 383 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-22 21:44:18,143 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 261 flow [2024-11-22 21:44:18,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=261, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2024-11-22 21:44:18,144 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2024-11-22 21:44:18,144 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 261 flow [2024-11-22 21:44:18,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2024-11-22 21:44:18,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:18,144 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:18,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:44:18,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:18,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:18,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2089213480, now seen corresponding path program 3 times [2024-11-22 21:44:18,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:18,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895834291] [2024-11-22 21:44:18,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:44:18,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:18,166 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 21:44:18,166 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:44:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:18,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:18,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895834291] [2024-11-22 21:44:18,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895834291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:18,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:18,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:44:18,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824316271] [2024-11-22 21:44:18,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:18,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:44:18,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:18,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:44:18,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:44:18,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2024-11-22 21:44:18,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-22 21:44:18,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:18,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2024-11-22 21:44:18,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:18,312 INFO L124 PetriNetUnfolderBase]: 209/577 cut-off events. [2024-11-22 21:44:18,312 INFO L125 PetriNetUnfolderBase]: For 234/237 co-relation queries the response was YES. [2024-11-22 21:44:18,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1369 conditions, 577 events. 209/577 cut-off events. For 234/237 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3044 event pairs, 101 based on Foata normal form. 8/553 useless extension candidates. Maximal degree in co-relation 833. Up to 250 conditions per place. [2024-11-22 21:44:18,317 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 33 selfloop transitions, 2 changer transitions 1/76 dead transitions. [2024-11-22 21:44:18,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 354 flow [2024-11-22 21:44:18,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:44:18,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:44:18,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-22 21:44:18,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2024-11-22 21:44:18,319 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 261 flow. Second operand 3 states and 116 transitions. [2024-11-22 21:44:18,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 354 flow [2024-11-22 21:44:18,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 76 transitions, 349 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-22 21:44:18,323 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 264 flow [2024-11-22 21:44:18,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-11-22 21:44:18,325 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2024-11-22 21:44:18,325 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 264 flow [2024-11-22 21:44:18,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-22 21:44:18,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:18,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:18,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 21:44:18,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:18,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:18,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1262023420, now seen corresponding path program 4 times [2024-11-22 21:44:18,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:18,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486158953] [2024-11-22 21:44:18,327 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:44:18,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:18,347 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:44:18,347 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:44:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:18,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:18,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486158953] [2024-11-22 21:44:18,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486158953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:18,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:18,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:44:18,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198240133] [2024-11-22 21:44:18,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:18,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:44:18,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:18,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:44:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:44:18,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2024-11-22 21:44:18,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-22 21:44:18,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:18,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2024-11-22 21:44:18,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:18,627 INFO L124 PetriNetUnfolderBase]: 286/734 cut-off events. [2024-11-22 21:44:18,627 INFO L125 PetriNetUnfolderBase]: For 477/493 co-relation queries the response was YES. [2024-11-22 21:44:18,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1872 conditions, 734 events. 286/734 cut-off events. For 477/493 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3927 event pairs, 61 based on Foata normal form. 6/702 useless extension candidates. Maximal degree in co-relation 909. Up to 391 conditions per place. [2024-11-22 21:44:18,632 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 41 selfloop transitions, 14 changer transitions 4/90 dead transitions. [2024-11-22 21:44:18,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 90 transitions, 442 flow [2024-11-22 21:44:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:44:18,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:44:18,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 181 transitions. [2024-11-22 21:44:18,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464285714285715 [2024-11-22 21:44:18,634 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 264 flow. Second operand 5 states and 181 transitions. [2024-11-22 21:44:18,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 90 transitions, 442 flow [2024-11-22 21:44:18,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 90 transitions, 438 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:44:18,638 INFO L231 Difference]: Finished difference. Result has 77 places, 72 transitions, 326 flow [2024-11-22 21:44:18,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=77, PETRI_TRANSITIONS=72} [2024-11-22 21:44:18,638 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 19 predicate places. [2024-11-22 21:44:18,638 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 72 transitions, 326 flow [2024-11-22 21:44:18,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-22 21:44:18,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:18,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:18,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 21:44:18,640 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:18,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:18,641 INFO L85 PathProgramCache]: Analyzing trace with hash -241809294, now seen corresponding path program 5 times [2024-11-22 21:44:18,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:18,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287820696] [2024-11-22 21:44:18,641 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:44:18,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:18,656 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:44:18,656 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:44:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:18,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:18,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287820696] [2024-11-22 21:44:18,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287820696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:18,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:18,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:44:18,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195440803] [2024-11-22 21:44:18,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:18,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:44:18,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:18,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:44:18,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:44:18,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2024-11-22 21:44:18,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 72 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2024-11-22 21:44:18,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:18,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2024-11-22 21:44:18,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:18,945 INFO L124 PetriNetUnfolderBase]: 316/741 cut-off events. [2024-11-22 21:44:18,946 INFO L125 PetriNetUnfolderBase]: For 849/864 co-relation queries the response was YES. [2024-11-22 21:44:18,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2144 conditions, 741 events. 316/741 cut-off events. For 849/864 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3872 event pairs, 93 based on Foata normal form. 3/702 useless extension candidates. Maximal degree in co-relation 954. Up to 202 conditions per place. [2024-11-22 21:44:18,951 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 48 selfloop transitions, 11 changer transitions 13/105 dead transitions. [2024-11-22 21:44:18,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 105 transitions, 584 flow [2024-11-22 21:44:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:44:18,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:44:18,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 258 transitions. [2024-11-22 21:44:18,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5758928571428571 [2024-11-22 21:44:18,952 INFO L175 Difference]: Start difference. First operand has 77 places, 72 transitions, 326 flow. Second operand 8 states and 258 transitions. [2024-11-22 21:44:18,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 105 transitions, 584 flow [2024-11-22 21:44:18,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 105 transitions, 570 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-11-22 21:44:18,957 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 339 flow [2024-11-22 21:44:18,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=339, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2024-11-22 21:44:18,958 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 25 predicate places. [2024-11-22 21:44:18,958 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 339 flow [2024-11-22 21:44:18,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2024-11-22 21:44:18,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:18,958 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:18,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 21:44:18,959 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:18,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:18,960 INFO L85 PathProgramCache]: Analyzing trace with hash 83534048, now seen corresponding path program 6 times [2024-11-22 21:44:18,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:18,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414441536] [2024-11-22 21:44:18,961 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:44:18,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:18,971 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 21:44:18,971 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:44:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:19,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:19,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414441536] [2024-11-22 21:44:19,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414441536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:19,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:19,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:44:19,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567526791] [2024-11-22 21:44:19,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:19,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:44:19,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:19,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:44:19,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:44:19,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2024-11-22 21:44:19,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 339 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-22 21:44:19,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:19,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2024-11-22 21:44:19,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:19,083 INFO L124 PetriNetUnfolderBase]: 227/673 cut-off events. [2024-11-22 21:44:19,083 INFO L125 PetriNetUnfolderBase]: For 509/534 co-relation queries the response was YES. [2024-11-22 21:44:19,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 673 events. 227/673 cut-off events. For 509/534 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3814 event pairs, 115 based on Foata normal form. 12/639 useless extension candidates. Maximal degree in co-relation 1690. Up to 271 conditions per place. [2024-11-22 21:44:19,087 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 34 selfloop transitions, 2 changer transitions 1/78 dead transitions. [2024-11-22 21:44:19,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 78 transitions, 433 flow [2024-11-22 21:44:19,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:44:19,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:44:19,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2024-11-22 21:44:19,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2024-11-22 21:44:19,088 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 339 flow. Second operand 3 states and 117 transitions. [2024-11-22 21:44:19,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 78 transitions, 433 flow [2024-11-22 21:44:19,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 78 transitions, 414 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-22 21:44:19,091 INFO L231 Difference]: Finished difference. Result has 79 places, 71 transitions, 328 flow [2024-11-22 21:44:19,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=79, PETRI_TRANSITIONS=71} [2024-11-22 21:44:19,093 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 21 predicate places. [2024-11-22 21:44:19,093 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 71 transitions, 328 flow [2024-11-22 21:44:19,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-22 21:44:19,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:19,094 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:19,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 21:44:19,094 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:19,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash -647813982, now seen corresponding path program 7 times [2024-11-22 21:44:19,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:19,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797093379] [2024-11-22 21:44:19,095 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 21:44:19,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:44:19,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:19,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:19,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797093379] [2024-11-22 21:44:19,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797093379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:19,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:19,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:44:19,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700651876] [2024-11-22 21:44:19,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:19,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:44:19,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:19,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:44:19,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:44:19,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-22 21:44:19,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 71 transitions, 328 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2024-11-22 21:44:19,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:19,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-22 21:44:19,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:19,317 INFO L124 PetriNetUnfolderBase]: 326/813 cut-off events. [2024-11-22 21:44:19,318 INFO L125 PetriNetUnfolderBase]: For 804/868 co-relation queries the response was YES. [2024-11-22 21:44:19,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2231 conditions, 813 events. 326/813 cut-off events. For 804/868 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4330 event pairs, 60 based on Foata normal form. 18/781 useless extension candidates. Maximal degree in co-relation 1402. Up to 445 conditions per place. [2024-11-22 21:44:19,321 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 50 selfloop transitions, 20 changer transitions 5/102 dead transitions. [2024-11-22 21:44:19,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 102 transitions, 573 flow [2024-11-22 21:44:19,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:44:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:44:19,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-11-22 21:44:19,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5790816326530612 [2024-11-22 21:44:19,322 INFO L175 Difference]: Start difference. First operand has 79 places, 71 transitions, 328 flow. Second operand 7 states and 227 transitions. [2024-11-22 21:44:19,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 102 transitions, 573 flow [2024-11-22 21:44:19,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 102 transitions, 569 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:44:19,326 INFO L231 Difference]: Finished difference. Result has 86 places, 77 transitions, 408 flow [2024-11-22 21:44:19,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=408, PETRI_PLACES=86, PETRI_TRANSITIONS=77} [2024-11-22 21:44:19,326 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 28 predicate places. [2024-11-22 21:44:19,326 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 77 transitions, 408 flow [2024-11-22 21:44:19,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2024-11-22 21:44:19,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:19,327 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:19,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 21:44:19,327 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:19,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:19,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2038060070, now seen corresponding path program 8 times [2024-11-22 21:44:19,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:19,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87093898] [2024-11-22 21:44:19,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:44:19,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:19,336 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:44:19,336 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:44:19,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:19,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:19,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87093898] [2024-11-22 21:44:19,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87093898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:19,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:19,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:44:19,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703098242] [2024-11-22 21:44:19,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:19,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:44:19,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:19,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:44:19,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:44:19,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2024-11-22 21:44:19,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 77 transitions, 408 flow. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-22 21:44:19,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:19,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2024-11-22 21:44:19,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:19,551 INFO L124 PetriNetUnfolderBase]: 233/646 cut-off events. [2024-11-22 21:44:19,551 INFO L125 PetriNetUnfolderBase]: For 827/847 co-relation queries the response was YES. [2024-11-22 21:44:19,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1830 conditions, 646 events. 233/646 cut-off events. For 827/847 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3457 event pairs, 54 based on Foata normal form. 6/620 useless extension candidates. Maximal degree in co-relation 1349. Up to 383 conditions per place. [2024-11-22 21:44:19,554 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 35 selfloop transitions, 12 changer transitions 4/85 dead transitions. [2024-11-22 21:44:19,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 85 transitions, 517 flow [2024-11-22 21:44:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:44:19,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:44:19,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 172 transitions. [2024-11-22 21:44:19,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-11-22 21:44:19,556 INFO L175 Difference]: Start difference. First operand has 86 places, 77 transitions, 408 flow. Second operand 5 states and 172 transitions. [2024-11-22 21:44:19,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 85 transitions, 517 flow [2024-11-22 21:44:19,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 85 transitions, 487 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-22 21:44:19,559 INFO L231 Difference]: Finished difference. Result has 88 places, 73 transitions, 367 flow [2024-11-22 21:44:19,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=367, PETRI_PLACES=88, PETRI_TRANSITIONS=73} [2024-11-22 21:44:19,562 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 30 predicate places. [2024-11-22 21:44:19,562 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 73 transitions, 367 flow [2024-11-22 21:44:19,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-22 21:44:19,563 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:19,565 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:19,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 21:44:19,565 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:19,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:19,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1763093801, now seen corresponding path program 1 times [2024-11-22 21:44:19,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:19,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582679348] [2024-11-22 21:44:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:44:19,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:44:19,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:19,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:19,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582679348] [2024-11-22 21:44:19,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582679348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:19,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:19,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:44:19,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033755394] [2024-11-22 21:44:19,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:19,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:44:19,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:19,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:44:19,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:44:19,648 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-22 21:44:19,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 73 transitions, 367 flow. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-22 21:44:19,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:19,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-22 21:44:19,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:19,738 INFO L124 PetriNetUnfolderBase]: 245/638 cut-off events. [2024-11-22 21:44:19,738 INFO L125 PetriNetUnfolderBase]: For 826/850 co-relation queries the response was YES. [2024-11-22 21:44:19,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1862 conditions, 638 events. 245/638 cut-off events. For 826/850 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3180 event pairs, 54 based on Foata normal form. 10/628 useless extension candidates. Maximal degree in co-relation 1288. Up to 298 conditions per place. [2024-11-22 21:44:19,741 INFO L140 encePairwiseOnDemand]: 45/56 looper letters, 44 selfloop transitions, 13 changer transitions 1/84 dead transitions. [2024-11-22 21:44:19,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 84 transitions, 508 flow [2024-11-22 21:44:19,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:44:19,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:44:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 165 transitions. [2024-11-22 21:44:19,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2024-11-22 21:44:19,742 INFO L175 Difference]: Start difference. First operand has 88 places, 73 transitions, 367 flow. Second operand 5 states and 165 transitions. [2024-11-22 21:44:19,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 84 transitions, 508 flow [2024-11-22 21:44:19,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 84 transitions, 464 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-22 21:44:19,746 INFO L231 Difference]: Finished difference. Result has 85 places, 70 transitions, 355 flow [2024-11-22 21:44:19,746 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=355, PETRI_PLACES=85, PETRI_TRANSITIONS=70} [2024-11-22 21:44:19,746 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 27 predicate places. [2024-11-22 21:44:19,747 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 70 transitions, 355 flow [2024-11-22 21:44:19,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-22 21:44:19,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:19,748 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:19,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 21:44:19,749 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:19,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:19,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1223320663, now seen corresponding path program 2 times [2024-11-22 21:44:19,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:19,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233933504] [2024-11-22 21:44:19,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:44:19,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:19,760 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:44:19,760 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:44:19,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:19,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:19,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233933504] [2024-11-22 21:44:19,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233933504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:19,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:19,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:44:19,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877069370] [2024-11-22 21:44:19,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:19,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:44:19,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:19,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:44:19,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:44:19,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-22 21:44:19,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 70 transitions, 355 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-22 21:44:19,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:19,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-22 21:44:19,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:20,003 INFO L124 PetriNetUnfolderBase]: 257/666 cut-off events. [2024-11-22 21:44:20,003 INFO L125 PetriNetUnfolderBase]: For 1176/1200 co-relation queries the response was YES. [2024-11-22 21:44:20,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 666 events. 257/666 cut-off events. For 1176/1200 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3367 event pairs, 89 based on Foata normal form. 6/653 useless extension candidates. Maximal degree in co-relation 1458. Up to 266 conditions per place. [2024-11-22 21:44:20,006 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 41 selfloop transitions, 7 changer transitions 22/96 dead transitions. [2024-11-22 21:44:20,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 96 transitions, 617 flow [2024-11-22 21:44:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:44:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:44:20,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 215 transitions. [2024-11-22 21:44:20,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.548469387755102 [2024-11-22 21:44:20,008 INFO L175 Difference]: Start difference. First operand has 85 places, 70 transitions, 355 flow. Second operand 7 states and 215 transitions. [2024-11-22 21:44:20,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 96 transitions, 617 flow [2024-11-22 21:44:20,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 96 transitions, 611 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-22 21:44:20,011 INFO L231 Difference]: Finished difference. Result has 93 places, 66 transitions, 336 flow [2024-11-22 21:44:20,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=336, PETRI_PLACES=93, PETRI_TRANSITIONS=66} [2024-11-22 21:44:20,012 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 35 predicate places. [2024-11-22 21:44:20,013 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 66 transitions, 336 flow [2024-11-22 21:44:20,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-22 21:44:20,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:20,013 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:20,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 21:44:20,014 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:20,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:20,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1743571051, now seen corresponding path program 1 times [2024-11-22 21:44:20,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:20,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148030908] [2024-11-22 21:44:20,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:44:20,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:44:20,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:20,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:20,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148030908] [2024-11-22 21:44:20,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148030908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:20,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:20,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:44:20,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364364018] [2024-11-22 21:44:20,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:20,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:44:20,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:20,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:44:20,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:44:20,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-22 21:44:20,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 66 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-22 21:44:20,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:20,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-22 21:44:20,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:20,156 INFO L124 PetriNetUnfolderBase]: 132/366 cut-off events. [2024-11-22 21:44:20,156 INFO L125 PetriNetUnfolderBase]: For 747/771 co-relation queries the response was YES. [2024-11-22 21:44:20,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 366 events. 132/366 cut-off events. For 747/771 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1437 event pairs, 31 based on Foata normal form. 8/363 useless extension candidates. Maximal degree in co-relation 1121. Up to 194 conditions per place. [2024-11-22 21:44:20,158 INFO L140 encePairwiseOnDemand]: 48/56 looper letters, 30 selfloop transitions, 6 changer transitions 11/69 dead transitions. [2024-11-22 21:44:20,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 69 transitions, 408 flow [2024-11-22 21:44:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:44:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:44:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-11-22 21:44:20,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5571428571428572 [2024-11-22 21:44:20,159 INFO L175 Difference]: Start difference. First operand has 93 places, 66 transitions, 336 flow. Second operand 5 states and 156 transitions. [2024-11-22 21:44:20,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 69 transitions, 408 flow [2024-11-22 21:44:20,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 69 transitions, 350 flow, removed 7 selfloop flow, removed 13 redundant places. [2024-11-22 21:44:20,161 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 214 flow [2024-11-22 21:44:20,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2024-11-22 21:44:20,162 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 17 predicate places. [2024-11-22 21:44:20,162 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 214 flow [2024-11-22 21:44:20,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-22 21:44:20,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:44:20,163 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:44:20,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 21:44:20,164 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:44:20,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:44:20,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1024708387, now seen corresponding path program 2 times [2024-11-22 21:44:20,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:44:20,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488226344] [2024-11-22 21:44:20,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:44:20,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:44:20,175 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:44:20,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:44:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:44:20,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:44:20,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488226344] [2024-11-22 21:44:20,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488226344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:44:20,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:44:20,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:44:20,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334950758] [2024-11-22 21:44:20,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:44:20,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:44:20,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:44:20,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:44:20,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:44:20,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-22 21:44:20,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 214 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-22 21:44:20,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:44:20,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-22 21:44:20,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:44:20,341 INFO L124 PetriNetUnfolderBase]: 42/149 cut-off events. [2024-11-22 21:44:20,342 INFO L125 PetriNetUnfolderBase]: For 123/125 co-relation queries the response was YES. [2024-11-22 21:44:20,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 149 events. 42/149 cut-off events. For 123/125 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 404 event pairs, 17 based on Foata normal form. 8/155 useless extension candidates. Maximal degree in co-relation 392. Up to 59 conditions per place. [2024-11-22 21:44:20,342 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2024-11-22 21:44:20,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 49 transitions, 255 flow [2024-11-22 21:44:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:44:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:44:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2024-11-22 21:44:20,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47959183673469385 [2024-11-22 21:44:20,343 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 214 flow. Second operand 7 states and 188 transitions. [2024-11-22 21:44:20,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 49 transitions, 255 flow [2024-11-22 21:44:20,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 49 transitions, 213 flow, removed 3 selfloop flow, removed 13 redundant places. [2024-11-22 21:44:20,344 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2024-11-22 21:44:20,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2024-11-22 21:44:20,344 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 0 predicate places. [2024-11-22 21:44:20,345 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2024-11-22 21:44:20,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-22 21:44:20,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-22 21:44:20,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-22 21:44:20,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-22 21:44:20,348 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-22 21:44:20,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 21:44:20,348 INFO L407 BasicCegarLoop]: Path program histogram: [8, 2, 2] [2024-11-22 21:44:20,350 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 21:44:20,350 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:44:20,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:44:20 BasicIcfg [2024-11-22 21:44:20,353 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:44:20,354 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:44:20,354 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:44:20,354 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:44:20,354 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:44:16" (3/4) ... [2024-11-22 21:44:20,356 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 21:44:20,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-22 21:44:20,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-22 21:44:20,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2024-11-22 21:44:20,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-22 21:44:20,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-22 21:44:20,362 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 21:44:20,423 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:44:20,424 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 21:44:20,424 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:44:20,424 INFO L158 Benchmark]: Toolchain (without parser) took 4427.98ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 119.4MB in the beginning and 129.9MB in the end (delta: -10.5MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-11-22 21:44:20,424 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 174.1MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:44:20,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.92ms. Allocated memory is still 174.1MB. Free memory was 119.4MB in the beginning and 106.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-22 21:44:20,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.81ms. Allocated memory is still 174.1MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:44:20,425 INFO L158 Benchmark]: Boogie Preprocessor took 27.04ms. Allocated memory is still 174.1MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:44:20,425 INFO L158 Benchmark]: RCFGBuilder took 492.90ms. Allocated memory is still 174.1MB. Free memory was 101.8MB in the beginning and 73.7MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-22 21:44:20,425 INFO L158 Benchmark]: TraceAbstraction took 3576.42ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 73.3MB in the beginning and 135.1MB in the end (delta: -61.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:44:20,425 INFO L158 Benchmark]: Witness Printer took 70.19ms. Allocated memory is still 230.7MB. Free memory was 135.1MB in the beginning and 129.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 21:44:20,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 174.1MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.92ms. Allocated memory is still 174.1MB. Free memory was 119.4MB in the beginning and 106.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.81ms. Allocated memory is still 174.1MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.04ms. Allocated memory is still 174.1MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 492.90ms. Allocated memory is still 174.1MB. Free memory was 101.8MB in the beginning and 73.7MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3576.42ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 73.3MB in the beginning and 135.1MB in the end (delta: -61.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.19ms. Allocated memory is still 230.7MB. Free memory was 135.1MB in the beginning and 129.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 77]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 85 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 469 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1770 IncrementalHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 52 mSDtfsCounter, 1770 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred in iteration=7, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 568 NumberOfCodeBlocks, 568 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 556 ConstructedInterpolants, 0 QuantifiedInterpolants, 1246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 21:44:20,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE