./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe031_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe031_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26b6897a83c9df9076ea7ea4c612ce46453382fa627c0d6af54da2d169befd96 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:57:57,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:57:57,622 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:57:57,628 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:57:57,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:57:57,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:57:57,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:57:57,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:57:57,647 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:57:57,648 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:57:57,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:57:57,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:57:57,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:57:57,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:57:57,649 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:57:57,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:57:57,650 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:57:57,651 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:57:57,651 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:57:57,651 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:57:57,651 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:57:57,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:57:57,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:57:57,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:57:57,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:57:57,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:57:57,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:57:57,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:57:57,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:57:57,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:57:57,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:57:57,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:57:57,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:57:57,652 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 26b6897a83c9df9076ea7ea4c612ce46453382fa627c0d6af54da2d169befd96 [2025-03-04 09:57:57,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:57:57,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:57:57,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:57:57,877 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:57:57,877 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:57:57,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe031_tso.i [2025-03-04 09:57:58,997 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619dace12/658ab611388b4950b4056e0ad42b3331/FLAG9a40acea3 [2025-03-04 09:57:59,259 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:57:59,260 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe031_tso.i [2025-03-04 09:57:59,273 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619dace12/658ab611388b4950b4056e0ad42b3331/FLAG9a40acea3 [2025-03-04 09:57:59,568 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619dace12/658ab611388b4950b4056e0ad42b3331 [2025-03-04 09:57:59,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:57:59,571 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:57:59,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:57:59,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:57:59,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:57:59,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bddceab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59, skipping insertion in model container [2025-03-04 09:57:59,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,601 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:57:59,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:57:59,796 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:57:59,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:57:59,865 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:57:59,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59 WrapperNode [2025-03-04 09:57:59,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:57:59,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:57:59,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:57:59,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:57:59,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,897 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2025-03-04 09:57:59,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:57:59,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:57:59,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:57:59,898 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:57:59,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,904 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,913 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]. [2025-03-04 09:57:59,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,916 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:57:59,920 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:57:59,924 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:57:59,924 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:57:59,925 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (1/1) ... [2025-03-04 09:57:59,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:57:59,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:57:59,948 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) [2025-03-04 09:57:59,956 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 [2025-03-04 09:57:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:57:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:57:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:57:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:57:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:57:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:57:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:57:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:57:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:57:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:57:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:57:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:57:59,972 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:58:00,056 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:58:00,058 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:58:00,174 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:58:00,174 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:58:00,235 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:58:00,235 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:58:00,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:00 BoogieIcfgContainer [2025-03-04 09:58:00,236 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:58:00,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:58:00,244 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:58:00,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:58:00,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:57:59" (1/3) ... [2025-03-04 09:58:00,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214fa9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:00, skipping insertion in model container [2025-03-04 09:58:00,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:59" (2/3) ... [2025-03-04 09:58:00,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214fa9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:00, skipping insertion in model container [2025-03-04 09:58:00,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:00" (3/3) ... [2025-03-04 09:58:00,249 INFO L128 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2025-03-04 09:58:00,259 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:58:00,260 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe031_tso.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 09:58:00,260 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:58:00,300 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:58:00,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2025-03-04 09:58:00,358 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2025-03-04 09:58:00,361 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:00,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-03-04 09:58:00,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2025-03-04 09:58:00,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2025-03-04 09:58:00,374 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:58:00,382 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;@adb4eb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:58:00,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-04 09:58:00,394 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:58:00,394 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2025-03-04 09:58:00,394 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:00,395 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:00,395 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:00,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:00,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:00,399 INFO L85 PathProgramCache]: Analyzing trace with hash 165332801, now seen corresponding path program 1 times [2025-03-04 09:58:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:00,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791936690] [2025-03-04 09:58:00,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:00,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:00,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:00,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:00,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:00,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:00,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:00,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791936690] [2025-03-04 09:58:00,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791936690] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:00,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:00,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:58:00,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279228092] [2025-03-04 09:58:00,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:00,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:00,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:00,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:00,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:00,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:58:00,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:00,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:00,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:58:00,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:01,298 INFO L124 PetriNetUnfolderBase]: 5627/8719 cut-off events. [2025-03-04 09:58:01,299 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-03-04 09:58:01,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16818 conditions, 8719 events. 5627/8719 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 52245 event pairs, 5627 based on Foata normal form. 756/9420 useless extension candidates. Maximal degree in co-relation 16807. Up to 7994 conditions per place. [2025-03-04 09:58:01,351 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 28 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2025-03-04 09:58:01,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 141 flow [2025-03-04 09:58:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-03-04 09:58:01,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2025-03-04 09:58:01,363 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 60 transitions. [2025-03-04 09:58:01,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 141 flow [2025-03-04 09:58:01,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:01,370 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2025-03-04 09:58:01,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2025-03-04 09:58:01,375 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2025-03-04 09:58:01,375 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2025-03-04 09:58:01,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:01,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:01,376 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:01,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:58:01,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:01,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:01,377 INFO L85 PathProgramCache]: Analyzing trace with hash 165333232, now seen corresponding path program 1 times [2025-03-04 09:58:01,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:01,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541382988] [2025-03-04 09:58:01,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:01,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:01,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:01,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:01,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:01,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:01,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:01,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541382988] [2025-03-04 09:58:01,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541382988] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:01,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:01,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:01,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706584501] [2025-03-04 09:58:01,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:01,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:01,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:01,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:01,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:01,653 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:58:01,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:01,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:01,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:58:01,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:02,827 INFO L124 PetriNetUnfolderBase]: 12701/18654 cut-off events. [2025-03-04 09:58:02,827 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:02,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37006 conditions, 18654 events. 12701/18654 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 116169 event pairs, 2958 based on Foata normal form. 0/18203 useless extension candidates. Maximal degree in co-relation 37000. Up to 6335 conditions per place. [2025-03-04 09:58:02,897 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 49 selfloop transitions, 6 changer transitions 103/163 dead transitions. [2025-03-04 09:58:02,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 163 transitions, 654 flow [2025-03-04 09:58:02,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:58:02,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:58:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 241 transitions. [2025-03-04 09:58:02,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6085858585858586 [2025-03-04 09:58:02,899 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 241 transitions. [2025-03-04 09:58:02,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 163 transitions, 654 flow [2025-03-04 09:58:02,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 163 transitions, 653 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:58:02,904 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 159 flow [2025-03-04 09:58:02,905 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2025-03-04 09:58:02,906 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2025-03-04 09:58:02,906 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 159 flow [2025-03-04 09:58:02,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:02,906 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:02,906 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:02,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:58:02,906 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:02,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:02,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1131054095, now seen corresponding path program 1 times [2025-03-04 09:58:02,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:02,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319959514] [2025-03-04 09:58:02,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:02,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:02,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:58:02,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:58:02,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:02,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:03,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:03,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319959514] [2025-03-04 09:58:03,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319959514] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:03,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:03,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:03,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168074118] [2025-03-04 09:58:03,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:03,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:03,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:03,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:03,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:03,077 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:58:03,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 39 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:03,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:03,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:58:03,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:04,216 INFO L124 PetriNetUnfolderBase]: 9592/14332 cut-off events. [2025-03-04 09:58:04,217 INFO L125 PetriNetUnfolderBase]: For 16062/16062 co-relation queries the response was YES. [2025-03-04 09:58:04,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38892 conditions, 14332 events. 9592/14332 cut-off events. For 16062/16062 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 86939 event pairs, 1428 based on Foata normal form. 352/14671 useless extension candidates. Maximal degree in co-relation 38877. Up to 5909 conditions per place. [2025-03-04 09:58:04,278 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 60 selfloop transitions, 10 changer transitions 80/155 dead transitions. [2025-03-04 09:58:04,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 155 transitions, 889 flow [2025-03-04 09:58:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:58:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:58:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 241 transitions. [2025-03-04 09:58:04,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5477272727272727 [2025-03-04 09:58:04,283 INFO L175 Difference]: Start difference. First operand has 59 places, 39 transitions, 159 flow. Second operand 10 states and 241 transitions. [2025-03-04 09:58:04,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 155 transitions, 889 flow [2025-03-04 09:58:04,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 155 transitions, 811 flow, removed 20 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:04,396 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 221 flow [2025-03-04 09:58:04,396 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=221, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2025-03-04 09:58:04,397 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2025-03-04 09:58:04,398 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 221 flow [2025-03-04 09:58:04,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:04,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:04,398 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:04,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:58:04,398 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:04,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:04,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2042432269, now seen corresponding path program 1 times [2025-03-04 09:58:04,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:04,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13096312] [2025-03-04 09:58:04,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:04,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:04,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:58:04,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:58:04,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:04,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:04,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:04,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:04,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13096312] [2025-03-04 09:58:04,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13096312] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:04,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:04,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:04,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318195040] [2025-03-04 09:58:04,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:04,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:04,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:04,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:04,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:04,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:58:04,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:04,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:04,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:58:04,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:05,503 INFO L124 PetriNetUnfolderBase]: 9470/14149 cut-off events. [2025-03-04 09:58:05,503 INFO L125 PetriNetUnfolderBase]: For 33586/33586 co-relation queries the response was YES. [2025-03-04 09:58:05,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42282 conditions, 14149 events. 9470/14149 cut-off events. For 33586/33586 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 86775 event pairs, 1314 based on Foata normal form. 382/14528 useless extension candidates. Maximal degree in co-relation 42261. Up to 5925 conditions per place. [2025-03-04 09:58:05,598 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 63 selfloop transitions, 12 changer transitions 80/160 dead transitions. [2025-03-04 09:58:05,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 160 transitions, 983 flow [2025-03-04 09:58:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:58:05,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:58:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 237 transitions. [2025-03-04 09:58:05,600 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5386363636363637 [2025-03-04 09:58:05,600 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 221 flow. Second operand 10 states and 237 transitions. [2025-03-04 09:58:05,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 160 transitions, 983 flow [2025-03-04 09:58:05,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 160 transitions, 927 flow, removed 28 selfloop flow, removed 6 redundant places. [2025-03-04 09:58:05,724 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 311 flow [2025-03-04 09:58:05,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2025-03-04 09:58:05,725 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 23 predicate places. [2025-03-04 09:58:05,725 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 311 flow [2025-03-04 09:58:05,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:05,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:05,726 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:05,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:58:05,726 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:05,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:05,727 INFO L85 PathProgramCache]: Analyzing trace with hash -407124496, now seen corresponding path program 1 times [2025-03-04 09:58:05,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:05,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77337724] [2025-03-04 09:58:05,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:05,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:05,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 09:58:05,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 09:58:05,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:05,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:05,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:05,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77337724] [2025-03-04 09:58:05,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77337724] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:05,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:05,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:58:05,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125195247] [2025-03-04 09:58:05,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:05,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:58:05,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:05,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:58:05,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:58:05,868 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-03-04 09:58:05,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2025-03-04 09:58:05,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:05,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-03-04 09:58:05,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:06,268 INFO L124 PetriNetUnfolderBase]: 6609/10325 cut-off events. [2025-03-04 09:58:06,268 INFO L125 PetriNetUnfolderBase]: For 24683/24683 co-relation queries the response was YES. [2025-03-04 09:58:06,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31175 conditions, 10325 events. 6609/10325 cut-off events. For 24683/24683 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 63121 event pairs, 1100 based on Foata normal form. 448/10760 useless extension candidates. Maximal degree in co-relation 31149. Up to 5498 conditions per place. [2025-03-04 09:58:06,316 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 95 selfloop transitions, 5 changer transitions 1/106 dead transitions. [2025-03-04 09:58:06,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 106 transitions, 913 flow [2025-03-04 09:58:06,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:58:06,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:58:06,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-03-04 09:58:06,320 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2025-03-04 09:58:06,320 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 311 flow. Second operand 4 states and 106 transitions. [2025-03-04 09:58:06,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 106 transitions, 913 flow [2025-03-04 09:58:06,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 106 transitions, 871 flow, removed 21 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:06,371 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 323 flow [2025-03-04 09:58:06,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=323, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2025-03-04 09:58:06,371 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-03-04 09:58:06,372 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 323 flow [2025-03-04 09:58:06,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2025-03-04 09:58:06,372 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:06,372 INFO L206 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] [2025-03-04 09:58:06,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:58:06,372 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:06,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:06,373 INFO L85 PathProgramCache]: Analyzing trace with hash -301667802, now seen corresponding path program 1 times [2025-03-04 09:58:06,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:06,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760013471] [2025-03-04 09:58:06,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:06,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:06,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 09:58:06,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 09:58:06,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:06,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:06,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:06,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760013471] [2025-03-04 09:58:06,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760013471] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:06,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:06,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:58:06,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357094851] [2025-03-04 09:58:06,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:06,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:06,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:06,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:06,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:06,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:58:06,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 323 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2025-03-04 09:58:06,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:06,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:58:06,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:07,343 INFO L124 PetriNetUnfolderBase]: 9292/14109 cut-off events. [2025-03-04 09:58:07,343 INFO L125 PetriNetUnfolderBase]: For 22225/22225 co-relation queries the response was YES. [2025-03-04 09:58:07,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43270 conditions, 14109 events. 9292/14109 cut-off events. For 22225/22225 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 87300 event pairs, 2287 based on Foata normal form. 288/14394 useless extension candidates. Maximal degree in co-relation 43244. Up to 5438 conditions per place. [2025-03-04 09:58:07,412 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 76 selfloop transitions, 14 changer transitions 84/179 dead transitions. [2025-03-04 09:58:07,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 179 transitions, 1196 flow [2025-03-04 09:58:07,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:58:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:58:07,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 245 transitions. [2025-03-04 09:58:07,414 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5568181818181818 [2025-03-04 09:58:07,414 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 323 flow. Second operand 10 states and 245 transitions. [2025-03-04 09:58:07,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 179 transitions, 1196 flow [2025-03-04 09:58:07,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 179 transitions, 1170 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:07,458 INFO L231 Difference]: Finished difference. Result has 79 places, 51 transitions, 369 flow [2025-03-04 09:58:07,458 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=369, PETRI_PLACES=79, PETRI_TRANSITIONS=51} [2025-03-04 09:58:07,459 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 31 predicate places. [2025-03-04 09:58:07,459 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 51 transitions, 369 flow [2025-03-04 09:58:07,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2025-03-04 09:58:07,459 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:07,459 INFO L206 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] [2025-03-04 09:58:07,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:58:07,459 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:07,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:07,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2127607278, now seen corresponding path program 1 times [2025-03-04 09:58:07,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:07,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075184966] [2025-03-04 09:58:07,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:07,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:07,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 09:58:07,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 09:58:07,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:07,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:07,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:07,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075184966] [2025-03-04 09:58:07,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075184966] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:07,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:07,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:07,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795805920] [2025-03-04 09:58:07,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:07,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:07,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:07,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:07,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:07,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-03-04 09:58:07,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 51 transitions, 369 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:07,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:07,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-03-04 09:58:07,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:07,945 INFO L124 PetriNetUnfolderBase]: 5037/7951 cut-off events. [2025-03-04 09:58:07,945 INFO L125 PetriNetUnfolderBase]: For 19759/19759 co-relation queries the response was YES. [2025-03-04 09:58:07,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24307 conditions, 7951 events. 5037/7951 cut-off events. For 19759/19759 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 46366 event pairs, 765 based on Foata normal form. 476/8414 useless extension candidates. Maximal degree in co-relation 24275. Up to 2572 conditions per place. [2025-03-04 09:58:07,977 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 94 selfloop transitions, 8 changer transitions 16/123 dead transitions. [2025-03-04 09:58:07,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 123 transitions, 1163 flow [2025-03-04 09:58:07,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:58:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:58:07,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2025-03-04 09:58:07,978 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2025-03-04 09:58:07,978 INFO L175 Difference]: Start difference. First operand has 79 places, 51 transitions, 369 flow. Second operand 5 states and 135 transitions. [2025-03-04 09:58:07,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 123 transitions, 1163 flow [2025-03-04 09:58:08,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 123 transitions, 1097 flow, removed 17 selfloop flow, removed 5 redundant places. [2025-03-04 09:58:08,003 INFO L231 Difference]: Finished difference. Result has 74 places, 52 transitions, 362 flow [2025-03-04 09:58:08,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=74, PETRI_TRANSITIONS=52} [2025-03-04 09:58:08,004 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2025-03-04 09:58:08,004 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 52 transitions, 362 flow [2025-03-04 09:58:08,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:08,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:08,004 INFO L206 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] [2025-03-04 09:58:08,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:58:08,004 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:08,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:08,005 INFO L85 PathProgramCache]: Analyzing trace with hash 558242500, now seen corresponding path program 1 times [2025-03-04 09:58:08,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:08,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857879624] [2025-03-04 09:58:08,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:08,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:08,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 09:58:08,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 09:58:08,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:08,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:08,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:08,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857879624] [2025-03-04 09:58:08,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857879624] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:08,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:08,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:58:08,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220450079] [2025-03-04 09:58:08,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:08,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:08,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:08,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:08,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:08,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:58:08,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 52 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2025-03-04 09:58:08,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:08,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:58:08,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:08,604 INFO L124 PetriNetUnfolderBase]: 5185/8162 cut-off events. [2025-03-04 09:58:08,604 INFO L125 PetriNetUnfolderBase]: For 15132/15132 co-relation queries the response was YES. [2025-03-04 09:58:08,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25573 conditions, 8162 events. 5185/8162 cut-off events. For 15132/15132 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 47990 event pairs, 1595 based on Foata normal form. 56/8209 useless extension candidates. Maximal degree in co-relation 25551. Up to 3223 conditions per place. [2025-03-04 09:58:08,632 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 72 selfloop transitions, 12 changer transitions 38/127 dead transitions. [2025-03-04 09:58:08,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 127 transitions, 951 flow [2025-03-04 09:58:08,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:08,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2025-03-04 09:58:08,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5795454545454546 [2025-03-04 09:58:08,634 INFO L175 Difference]: Start difference. First operand has 74 places, 52 transitions, 362 flow. Second operand 6 states and 153 transitions. [2025-03-04 09:58:08,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 127 transitions, 951 flow [2025-03-04 09:58:08,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 127 transitions, 851 flow, removed 18 selfloop flow, removed 9 redundant places. [2025-03-04 09:58:08,662 INFO L231 Difference]: Finished difference. Result has 73 places, 50 transitions, 320 flow [2025-03-04 09:58:08,662 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=73, PETRI_TRANSITIONS=50} [2025-03-04 09:58:08,664 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 25 predicate places. [2025-03-04 09:58:08,664 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 50 transitions, 320 flow [2025-03-04 09:58:08,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2025-03-04 09:58:08,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:08,664 INFO L206 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] [2025-03-04 09:58:08,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:58:08,665 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:08,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:08,666 INFO L85 PathProgramCache]: Analyzing trace with hash -713585592, now seen corresponding path program 2 times [2025-03-04 09:58:08,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:08,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696658839] [2025-03-04 09:58:08,666 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:58:08,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:08,671 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-03-04 09:58:08,675 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 09:58:08,675 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:58:08,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:08,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:08,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:08,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696658839] [2025-03-04 09:58:08,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696658839] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:08,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:08,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:08,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329093547] [2025-03-04 09:58:08,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:08,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:08,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:08,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:08,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:08,750 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-03-04 09:58:08,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 50 transitions, 320 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-04 09:58:08,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:08,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-03-04 09:58:08,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:08,989 INFO L124 PetriNetUnfolderBase]: 2933/4659 cut-off events. [2025-03-04 09:58:08,989 INFO L125 PetriNetUnfolderBase]: For 10024/10024 co-relation queries the response was YES. [2025-03-04 09:58:08,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13943 conditions, 4659 events. 2933/4659 cut-off events. For 10024/10024 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 25456 event pairs, 573 based on Foata normal form. 192/4846 useless extension candidates. Maximal degree in co-relation 13923. Up to 1656 conditions per place. [2025-03-04 09:58:09,002 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 52 selfloop transitions, 11 changer transitions 30/98 dead transitions. [2025-03-04 09:58:09,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 98 transitions, 809 flow [2025-03-04 09:58:09,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:09,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2025-03-04 09:58:09,003 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2025-03-04 09:58:09,003 INFO L175 Difference]: Start difference. First operand has 73 places, 50 transitions, 320 flow. Second operand 6 states and 136 transitions. [2025-03-04 09:58:09,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 98 transitions, 809 flow [2025-03-04 09:58:09,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 98 transitions, 765 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:09,009 INFO L231 Difference]: Finished difference. Result has 74 places, 40 transitions, 221 flow [2025-03-04 09:58:09,009 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=74, PETRI_TRANSITIONS=40} [2025-03-04 09:58:09,010 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2025-03-04 09:58:09,010 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 40 transitions, 221 flow [2025-03-04 09:58:09,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-04 09:58:09,010 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:09,010 INFO L206 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] [2025-03-04 09:58:09,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 09:58:09,010 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:09,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:09,011 INFO L85 PathProgramCache]: Analyzing trace with hash -103877875, now seen corresponding path program 1 times [2025-03-04 09:58:09,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:09,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231147474] [2025-03-04 09:58:09,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:09,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:09,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 09:58:09,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 09:58:09,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:09,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:09,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:09,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231147474] [2025-03-04 09:58:09,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231147474] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:09,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:09,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:58:09,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517757366] [2025-03-04 09:58:09,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:09,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:09,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:09,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:09,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:09,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:58:09,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 40 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-03-04 09:58:09,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:09,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:58:09,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:09,224 INFO L124 PetriNetUnfolderBase]: 509/811 cut-off events. [2025-03-04 09:58:09,224 INFO L125 PetriNetUnfolderBase]: For 1242/1242 co-relation queries the response was YES. [2025-03-04 09:58:09,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2611 conditions, 811 events. 509/811 cut-off events. For 1242/1242 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2719 event pairs, 208 based on Foata normal form. 8/818 useless extension candidates. Maximal degree in co-relation 2592. Up to 551 conditions per place. [2025-03-04 09:58:09,227 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2025-03-04 09:58:09,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 55 transitions, 381 flow [2025-03-04 09:58:09,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:58:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:58:09,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 108 transitions. [2025-03-04 09:58:09,228 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35064935064935066 [2025-03-04 09:58:09,228 INFO L175 Difference]: Start difference. First operand has 74 places, 40 transitions, 221 flow. Second operand 7 states and 108 transitions. [2025-03-04 09:58:09,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 55 transitions, 381 flow [2025-03-04 09:58:09,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 55 transitions, 255 flow, removed 16 selfloop flow, removed 24 redundant places. [2025-03-04 09:58:09,230 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2025-03-04 09:58:09,230 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2025-03-04 09:58:09,231 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2025-03-04 09:58:09,231 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2025-03-04 09:58:09,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-03-04 09:58:09,233 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-04 09:58:09,234 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-04 09:58:09,234 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-04 09:58:09,234 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-04 09:58:09,234 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-04 09:58:09,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 09:58:09,235 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:09,237 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:58:09,237 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:58:09,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:58:09 BasicIcfg [2025-03-04 09:58:09,241 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:58:09,242 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:58:09,242 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:58:09,242 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:58:09,243 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:00" (3/4) ... [2025-03-04 09:58:09,244 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:58:09,246 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:58:09,246 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:58:09,247 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:58:09,249 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-03-04 09:58:09,249 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-04 09:58:09,249 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 09:58:09,249 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 09:58:09,301 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:58:09,301 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:58:09,301 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:58:09,302 INFO L158 Benchmark]: Toolchain (without parser) took 9731.07ms. Allocated memory was 167.8MB in the beginning and 931.1MB in the end (delta: 763.4MB). Free memory was 131.4MB in the beginning and 236.6MB in the end (delta: -105.2MB). Peak memory consumption was 658.6MB. Max. memory is 16.1GB. [2025-03-04 09:58:09,302 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:09,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.99ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 111.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:09,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.94ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 110.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:58:09,303 INFO L158 Benchmark]: Boogie Preprocessor took 21.98ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 108.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:09,303 INFO L158 Benchmark]: IcfgBuilder took 315.35ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 88.3MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:09,303 INFO L158 Benchmark]: TraceAbstraction took 8999.47ms. Allocated memory was 167.8MB in the beginning and 931.1MB in the end (delta: 763.4MB). Free memory was 87.9MB in the beginning and 244.9MB in the end (delta: -157.0MB). Peak memory consumption was 608.2MB. Max. memory is 16.1GB. [2025-03-04 09:58:09,303 INFO L158 Benchmark]: Witness Printer took 59.59ms. Allocated memory is still 931.1MB. Free memory was 244.9MB in the beginning and 236.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:58:09,304 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.99ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 111.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.94ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 110.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.98ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 108.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 315.35ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 88.3MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8999.47ms. Allocated memory was 167.8MB in the beginning and 931.1MB in the end (delta: 763.4MB). Free memory was 87.9MB in the beginning and 244.9MB in the end (delta: -157.0MB). Peak memory consumption was 608.2MB. Max. memory is 16.1GB. * Witness Printer took 59.59ms. Allocated memory is still 931.1MB. Free memory was 244.9MB in the beginning and 236.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 743 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 741 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1741 IncrementalHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 3 mSDtfsCounter, 1741 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=369occurred in iteration=6, 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, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 872 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 09:58:09,318 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