./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8fc3dc66 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/rfi003_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 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:09:35,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:09:35,825 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-17 14:09:35,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:09:35,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:09:35,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:09:35,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:09:35,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:09:35,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:09:35,851 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:09:35,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:09:35,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:09:35,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:09:35,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:09:35,853 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:09:35,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:09:35,853 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 14:09:35,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:09:35,853 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 14:09:35,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:09:35,853 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 14:09:35,854 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 14:09:35,854 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-17 14:09:35,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:09:35,854 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 14:09:35,854 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:09:35,854 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 14:09:35,854 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:09:35,854 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:09:35,854 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:09:35,854 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:09:35,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:09:35,855 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:09:35,856 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 -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2025-03-17 14:09:36,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:09:36,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:09:36,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:09:36,134 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:09:36,134 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:09:36,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-03-17 14:09:37,208 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/584314558/cb05ea919ea546238f9dcf5aa1cb98a2/FLAG4cac574e0 [2025-03-17 14:09:37,483 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:09:37,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-03-17 14:09:37,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/584314558/cb05ea919ea546238f9dcf5aa1cb98a2/FLAG4cac574e0 [2025-03-17 14:09:37,769 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/584314558/cb05ea919ea546238f9dcf5aa1cb98a2 [2025-03-17 14:09:37,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:09:37,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:09:37,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:09:37,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:09:37,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:09:37,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:09:37" (1/1) ... [2025-03-17 14:09:37,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ef5295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:37, skipping insertion in model container [2025-03-17 14:09:37,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:09:37" (1/1) ... [2025-03-17 14:09:37,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:09:38,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:09:38,086 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:09:38,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:09:38,173 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:09:38,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38 WrapperNode [2025-03-17 14:09:38,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:09:38,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:09:38,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:09:38,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:09:38,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,226 INFO L138 Inliner]: procedures = 174, calls = 40, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 172 [2025-03-17 14:09:38,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:09:38,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:09:38,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:09:38,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:09:38,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,237 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,257 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]. [2025-03-17 14:09:38,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,269 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:09:38,285 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:09:38,286 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:09:38,286 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:09:38,286 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (1/1) ... [2025-03-17 14:09:38,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:09:38,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:09:38,315 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) [2025-03-17 14:09:38,319 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 [2025-03-17 14:09:38,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-17 14:09:38,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 14:09:38,337 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-17 14:09:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-17 14:09:38,338 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-17 14:09:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-17 14:09:38,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 14:09:38,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-17 14:09:38,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:09:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:09:38,339 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 14:09:38,451 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:09:38,453 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:09:38,729 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 14:09:38,729 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:09:38,949 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:09:38,950 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:09:38,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:09:38 BoogieIcfgContainer [2025-03-17 14:09:38,950 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:09:38,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:09:38,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:09:38,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:09:38,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:09:37" (1/3) ... [2025-03-17 14:09:38,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41325640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:09:38, skipping insertion in model container [2025-03-17 14:09:38,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:09:38" (2/3) ... [2025-03-17 14:09:38,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41325640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:09:38, skipping insertion in model container [2025-03-17 14:09:38,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:09:38" (3/3) ... [2025-03-17 14:09:38,957 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2025-03-17 14:09:38,971 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:09:38,972 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi003_tso.i that has 3 procedures, 37 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-17 14:09:38,973 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 14:09:39,019 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 14:09:39,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 38 transitions, 84 flow [2025-03-17 14:09:39,070 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2025-03-17 14:09:39,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 14:09:39,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 36 events. 2/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2025-03-17 14:09:39,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 38 transitions, 84 flow [2025-03-17 14:09:39,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 36 transitions, 78 flow [2025-03-17 14:09:39,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:09:39,095 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;@1bba818b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:09:39,096 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-03-17 14:09:39,102 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 14:09:39,102 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-03-17 14:09:39,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 14:09:39,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:39,102 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:39,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:39,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1626991377, now seen corresponding path program 1 times [2025-03-17 14:09:39,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:39,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74310496] [2025-03-17 14:09:39,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:39,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:39,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 14:09:39,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 14:09:39,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:39,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:39,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:39,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:39,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74310496] [2025-03-17 14:09:39,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74310496] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:39,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:39,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:09:39,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053989361] [2025-03-17 14:09:39,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:39,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:09:39,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:39,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:09:39,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:09:39,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2025-03-17 14:09:39,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-03-17 14:09:39,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:39,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2025-03-17 14:09:39,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:39,877 INFO L124 PetriNetUnfolderBase]: 927/1561 cut-off events. [2025-03-17 14:09:39,878 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-17 14:09:39,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3083 conditions, 1561 events. 927/1561 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7858 event pairs, 189 based on Foata normal form. 112/1670 useless extension candidates. Maximal degree in co-relation 3073. Up to 1159 conditions per place. [2025-03-17 14:09:39,892 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 37 selfloop transitions, 2 changer transitions 2/47 dead transitions. [2025-03-17 14:09:39,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 182 flow [2025-03-17 14:09:39,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:09:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:09:39,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-03-17 14:09:39,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2025-03-17 14:09:39,907 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 78 flow. Second operand 3 states and 70 transitions. [2025-03-17 14:09:39,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 182 flow [2025-03-17 14:09:39,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 47 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:09:39,913 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 70 flow [2025-03-17 14:09:39,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2025-03-17 14:09:39,919 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2025-03-17 14:09:39,920 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 70 flow [2025-03-17 14:09:39,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-03-17 14:09:39,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:39,921 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:39,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:09:39,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:39,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:39,922 INFO L85 PathProgramCache]: Analyzing trace with hash -172492816, now seen corresponding path program 1 times [2025-03-17 14:09:39,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:39,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590300935] [2025-03-17 14:09:39,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:39,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:39,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 14:09:39,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 14:09:39,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:39,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:40,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:40,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:40,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590300935] [2025-03-17 14:09:40,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590300935] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:40,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:40,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:09:40,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019241583] [2025-03-17 14:09:40,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:40,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:09:40,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:40,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:09:40,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:09:40,003 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-03-17 14:09:40,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2025-03-17 14:09:40,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:40,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-03-17 14:09:40,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:40,230 INFO L124 PetriNetUnfolderBase]: 830/1471 cut-off events. [2025-03-17 14:09:40,230 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-03-17 14:09:40,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2903 conditions, 1471 events. 830/1471 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7499 event pairs, 830 based on Foata normal form. 56/1517 useless extension candidates. Maximal degree in co-relation 2893. Up to 1349 conditions per place. [2025-03-17 14:09:40,237 INFO L140 encePairwiseOnDemand]: 36/38 looper letters, 23 selfloop transitions, 1 changer transitions 1/30 dead transitions. [2025-03-17 14:09:40,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 118 flow [2025-03-17 14:09:40,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:09:40,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:09:40,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2025-03-17 14:09:40,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41228070175438597 [2025-03-17 14:09:40,238 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 70 flow. Second operand 3 states and 47 transitions. [2025-03-17 14:09:40,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 118 flow [2025-03-17 14:09:40,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:09:40,240 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 64 flow [2025-03-17 14:09:40,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2025-03-17 14:09:40,240 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, -4 predicate places. [2025-03-17 14:09:40,240 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 64 flow [2025-03-17 14:09:40,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2025-03-17 14:09:40,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:40,240 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:40,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:09:40,240 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:40,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:40,241 INFO L85 PathProgramCache]: Analyzing trace with hash -172491772, now seen corresponding path program 1 times [2025-03-17 14:09:40,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:40,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477325868] [2025-03-17 14:09:40,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:40,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:40,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 14:09:40,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 14:09:40,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:40,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:40,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:40,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:40,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477325868] [2025-03-17 14:09:40,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477325868] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:40,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:40,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:09:40,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157408298] [2025-03-17 14:09:40,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:40,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:09:40,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:40,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:09:40,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:09:40,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-03-17 14:09:40,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2025-03-17 14:09:40,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:40,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-03-17 14:09:40,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:41,319 INFO L124 PetriNetUnfolderBase]: 930/1606 cut-off events. [2025-03-17 14:09:41,320 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 14:09:41,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3159 conditions, 1606 events. 930/1606 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7898 event pairs, 236 based on Foata normal form. 0/1568 useless extension candidates. Maximal degree in co-relation 3153. Up to 745 conditions per place. [2025-03-17 14:09:41,325 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 32 selfloop transitions, 2 changer transitions 54/92 dead transitions. [2025-03-17 14:09:41,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 92 transitions, 366 flow [2025-03-17 14:09:41,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:09:41,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:09:41,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2025-03-17 14:09:41,326 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48026315789473684 [2025-03-17 14:09:41,326 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 64 flow. Second operand 8 states and 146 transitions. [2025-03-17 14:09:41,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 92 transitions, 366 flow [2025-03-17 14:09:41,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 92 transitions, 365 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 14:09:41,330 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 77 flow [2025-03-17 14:09:41,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=77, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2025-03-17 14:09:41,331 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2025-03-17 14:09:41,331 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 77 flow [2025-03-17 14:09:41,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2025-03-17 14:09:41,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:41,332 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:41,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 14:09:41,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:41,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:41,333 INFO L85 PathProgramCache]: Analyzing trace with hash -355656374, now seen corresponding path program 1 times [2025-03-17 14:09:41,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:41,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031976449] [2025-03-17 14:09:41,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:41,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:41,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 14:09:41,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 14:09:41,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:41,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:41,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:41,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031976449] [2025-03-17 14:09:41,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031976449] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:41,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:41,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:09:41,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020475635] [2025-03-17 14:09:41,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:41,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:09:41,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:41,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:09:41,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:09:41,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-03-17 14:09:41,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 28 transitions, 77 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-03-17 14:09:41,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:41,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-03-17 14:09:41,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:42,111 INFO L124 PetriNetUnfolderBase]: 665/1173 cut-off events. [2025-03-17 14:09:42,111 INFO L125 PetriNetUnfolderBase]: For 287/287 co-relation queries the response was YES. [2025-03-17 14:09:42,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2600 conditions, 1173 events. 665/1173 cut-off events. For 287/287 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5357 event pairs, 273 based on Foata normal form. 35/1205 useless extension candidates. Maximal degree in co-relation 2588. Up to 592 conditions per place. [2025-03-17 14:09:42,119 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 32 selfloop transitions, 2 changer transitions 35/73 dead transitions. [2025-03-17 14:09:42,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 73 transitions, 315 flow [2025-03-17 14:09:42,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:09:42,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 14:09:42,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2025-03-17 14:09:42,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45112781954887216 [2025-03-17 14:09:42,123 INFO L175 Difference]: Start difference. First operand has 47 places, 28 transitions, 77 flow. Second operand 7 states and 120 transitions. [2025-03-17 14:09:42,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 73 transitions, 315 flow [2025-03-17 14:09:42,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 73 transitions, 295 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-03-17 14:09:42,129 INFO L231 Difference]: Finished difference. Result has 46 places, 28 transitions, 81 flow [2025-03-17 14:09:42,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=81, PETRI_PLACES=46, PETRI_TRANSITIONS=28} [2025-03-17 14:09:42,130 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2025-03-17 14:09:42,130 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 28 transitions, 81 flow [2025-03-17 14:09:42,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-03-17 14:09:42,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:42,130 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:42,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 14:09:42,131 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:42,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:42,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1737984549, now seen corresponding path program 1 times [2025-03-17 14:09:42,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:42,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988506086] [2025-03-17 14:09:42,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:42,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:42,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 14:09:42,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 14:09:42,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:42,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:43,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:43,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988506086] [2025-03-17 14:09:43,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988506086] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:43,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:43,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 14:09:43,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450252121] [2025-03-17 14:09:43,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:43,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:09:43,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:43,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:09:43,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:09:43,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-03-17 14:09:43,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 28 transitions, 81 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2025-03-17 14:09:43,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:43,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-03-17 14:09:43,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:43,543 INFO L124 PetriNetUnfolderBase]: 622/1095 cut-off events. [2025-03-17 14:09:43,544 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2025-03-17 14:09:43,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 1095 events. 622/1095 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4804 event pairs, 268 based on Foata normal form. 28/1121 useless extension candidates. Maximal degree in co-relation 2467. Up to 853 conditions per place. [2025-03-17 14:09:43,548 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 38 selfloop transitions, 4 changer transitions 27/73 dead transitions. [2025-03-17 14:09:43,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 73 transitions, 327 flow [2025-03-17 14:09:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:09:43,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:09:43,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2025-03-17 14:09:43,549 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41776315789473684 [2025-03-17 14:09:43,550 INFO L175 Difference]: Start difference. First operand has 46 places, 28 transitions, 81 flow. Second operand 8 states and 127 transitions. [2025-03-17 14:09:43,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 73 transitions, 327 flow [2025-03-17 14:09:43,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 73 transitions, 298 flow, removed 10 selfloop flow, removed 7 redundant places. [2025-03-17 14:09:43,553 INFO L231 Difference]: Finished difference. Result has 48 places, 30 transitions, 94 flow [2025-03-17 14:09:43,553 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=94, PETRI_PLACES=48, PETRI_TRANSITIONS=30} [2025-03-17 14:09:43,554 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 7 predicate places. [2025-03-17 14:09:43,554 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 30 transitions, 94 flow [2025-03-17 14:09:43,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2025-03-17 14:09:43,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:43,554 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] [2025-03-17 14:09:43,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 14:09:43,555 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:43,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:43,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2131682782, now seen corresponding path program 1 times [2025-03-17 14:09:43,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:43,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769007044] [2025-03-17 14:09:43,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:43,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:43,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 14:09:43,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 14:09:43,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:43,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:44,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:44,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:44,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769007044] [2025-03-17 14:09:44,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769007044] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:44,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:44,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:09:44,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951122419] [2025-03-17 14:09:44,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:44,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:09:44,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:44,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:09:44,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:09:44,087 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-03-17 14:09:44,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 30 transitions, 94 flow. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2025-03-17 14:09:44,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:44,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-03-17 14:09:44,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:44,348 INFO L124 PetriNetUnfolderBase]: 547/990 cut-off events. [2025-03-17 14:09:44,348 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2025-03-17 14:09:44,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2262 conditions, 990 events. 547/990 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4523 event pairs, 20 based on Foata normal form. 56/1044 useless extension candidates. Maximal degree in co-relation 2248. Up to 556 conditions per place. [2025-03-17 14:09:44,353 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 46 selfloop transitions, 6 changer transitions 2/58 dead transitions. [2025-03-17 14:09:44,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 58 transitions, 270 flow [2025-03-17 14:09:44,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:09:44,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 14:09:44,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2025-03-17 14:09:44,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4842105263157895 [2025-03-17 14:09:44,355 INFO L175 Difference]: Start difference. First operand has 48 places, 30 transitions, 94 flow. Second operand 5 states and 92 transitions. [2025-03-17 14:09:44,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 58 transitions, 270 flow [2025-03-17 14:09:44,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 258 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-03-17 14:09:44,357 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 121 flow [2025-03-17 14:09:44,357 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2025-03-17 14:09:44,359 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2025-03-17 14:09:44,360 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 121 flow [2025-03-17 14:09:44,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2025-03-17 14:09:44,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:44,360 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] [2025-03-17 14:09:44,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 14:09:44,360 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:44,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:44,361 INFO L85 PathProgramCache]: Analyzing trace with hash -628629330, now seen corresponding path program 2 times [2025-03-17 14:09:44,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:44,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529647716] [2025-03-17 14:09:44,361 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:09:44,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:44,368 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 1 equivalence classes. [2025-03-17 14:09:44,404 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 14:09:44,407 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:09:44,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:44,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:44,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529647716] [2025-03-17 14:09:44,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529647716] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:44,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:44,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:09:44,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425673947] [2025-03-17 14:09:44,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:44,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:09:44,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:44,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:09:44,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:09:44,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2025-03-17 14:09:44,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-03-17 14:09:44,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:44,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2025-03-17 14:09:44,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:44,670 INFO L124 PetriNetUnfolderBase]: 377/707 cut-off events. [2025-03-17 14:09:44,670 INFO L125 PetriNetUnfolderBase]: For 438/438 co-relation queries the response was YES. [2025-03-17 14:09:44,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 707 events. 377/707 cut-off events. For 438/438 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2920 event pairs, 104 based on Foata normal form. 42/746 useless extension candidates. Maximal degree in co-relation 1758. Up to 304 conditions per place. [2025-03-17 14:09:44,673 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 49 selfloop transitions, 5 changer transitions 1/59 dead transitions. [2025-03-17 14:09:44,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 59 transitions, 304 flow [2025-03-17 14:09:44,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:09:44,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 14:09:44,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-03-17 14:09:44,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5657894736842105 [2025-03-17 14:09:44,674 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 121 flow. Second operand 4 states and 86 transitions. [2025-03-17 14:09:44,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 59 transitions, 304 flow [2025-03-17 14:09:44,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 59 transitions, 284 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-03-17 14:09:44,676 INFO L231 Difference]: Finished difference. Result has 47 places, 34 transitions, 135 flow [2025-03-17 14:09:44,676 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=135, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2025-03-17 14:09:44,676 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2025-03-17 14:09:44,676 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 135 flow [2025-03-17 14:09:44,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-03-17 14:09:44,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:44,677 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] [2025-03-17 14:09:44,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 14:09:44,677 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:44,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:44,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1852103249, now seen corresponding path program 1 times [2025-03-17 14:09:44,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:44,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587442832] [2025-03-17 14:09:44,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:44,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:44,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 14:09:44,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 14:09:44,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:44,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:45,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:45,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587442832] [2025-03-17 14:09:45,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587442832] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:45,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:45,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 14:09:45,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419571761] [2025-03-17 14:09:45,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:45,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 14:09:45,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:45,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 14:09:45,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-03-17 14:09:45,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-03-17 14:09:45,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 135 flow. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:09:45,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:45,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-03-17 14:09:45,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:46,769 INFO L124 PetriNetUnfolderBase]: 692/1292 cut-off events. [2025-03-17 14:09:46,770 INFO L125 PetriNetUnfolderBase]: For 712/712 co-relation queries the response was YES. [2025-03-17 14:09:46,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3321 conditions, 1292 events. 692/1292 cut-off events. For 712/712 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6365 event pairs, 246 based on Foata normal form. 14/1303 useless extension candidates. Maximal degree in co-relation 3307. Up to 446 conditions per place. [2025-03-17 14:09:46,775 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 59 selfloop transitions, 17 changer transitions 30/110 dead transitions. [2025-03-17 14:09:46,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 110 transitions, 609 flow [2025-03-17 14:09:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 14:09:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 14:09:46,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 169 transitions. [2025-03-17 14:09:46,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44473684210526315 [2025-03-17 14:09:46,777 INFO L175 Difference]: Start difference. First operand has 47 places, 34 transitions, 135 flow. Second operand 10 states and 169 transitions. [2025-03-17 14:09:46,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 110 transitions, 609 flow [2025-03-17 14:09:46,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 110 transitions, 571 flow, removed 5 selfloop flow, removed 3 redundant places. [2025-03-17 14:09:46,780 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 231 flow [2025-03-17 14:09:46,781 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=231, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2025-03-17 14:09:46,781 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 17 predicate places. [2025-03-17 14:09:46,782 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 231 flow [2025-03-17 14:09:46,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:09:46,783 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:46,783 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] [2025-03-17 14:09:46,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 14:09:46,783 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:46,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:46,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1333809471, now seen corresponding path program 2 times [2025-03-17 14:09:46,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:46,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480477382] [2025-03-17 14:09:46,784 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:09:46,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:46,792 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 1 equivalence classes. [2025-03-17 14:09:46,838 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 14:09:46,838 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:09:46,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:46,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:46,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:46,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480477382] [2025-03-17 14:09:46,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480477382] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:46,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:46,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:09:46,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392887286] [2025-03-17 14:09:46,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:46,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:09:46,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:46,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:09:46,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:09:46,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2025-03-17 14:09:46,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 231 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) [2025-03-17 14:09:46,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:46,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2025-03-17 14:09:46,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:47,073 INFO L124 PetriNetUnfolderBase]: 332/648 cut-off events. [2025-03-17 14:09:47,073 INFO L125 PetriNetUnfolderBase]: For 453/453 co-relation queries the response was YES. [2025-03-17 14:09:47,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1838 conditions, 648 events. 332/648 cut-off events. For 453/453 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2671 event pairs, 106 based on Foata normal form. 46/691 useless extension candidates. Maximal degree in co-relation 1819. Up to 263 conditions per place. [2025-03-17 14:09:47,076 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 50 selfloop transitions, 7 changer transitions 2/63 dead transitions. [2025-03-17 14:09:47,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 63 transitions, 398 flow [2025-03-17 14:09:47,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:09:47,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 14:09:47,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2025-03-17 14:09:47,077 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45263157894736844 [2025-03-17 14:09:47,077 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 231 flow. Second operand 5 states and 86 transitions. [2025-03-17 14:09:47,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 63 transitions, 398 flow [2025-03-17 14:09:47,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 63 transitions, 375 flow, removed 7 selfloop flow, removed 5 redundant places. [2025-03-17 14:09:47,079 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 221 flow [2025-03-17 14:09:47,079 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2025-03-17 14:09:47,080 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2025-03-17 14:09:47,080 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 221 flow [2025-03-17 14:09:47,080 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) [2025-03-17 14:09:47,080 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:47,080 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] [2025-03-17 14:09:47,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 14:09:47,080 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:47,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:47,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1016678689, now seen corresponding path program 1 times [2025-03-17 14:09:47,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:47,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693490306] [2025-03-17 14:09:47,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:47,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:47,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 14:09:47,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 14:09:47,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:47,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:47,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:47,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:47,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693490306] [2025-03-17 14:09:47,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693490306] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:47,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:47,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:09:47,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445737675] [2025-03-17 14:09:47,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:47,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:09:47,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:47,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:09:47,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:09:47,294 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-03-17 14:09:47,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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) [2025-03-17 14:09:47,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:47,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-03-17 14:09:47,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:47,494 INFO L124 PetriNetUnfolderBase]: 362/702 cut-off events. [2025-03-17 14:09:47,495 INFO L125 PetriNetUnfolderBase]: For 763/763 co-relation queries the response was YES. [2025-03-17 14:09:47,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2105 conditions, 702 events. 362/702 cut-off events. For 763/763 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3005 event pairs, 60 based on Foata normal form. 8/707 useless extension candidates. Maximal degree in co-relation 2087. Up to 308 conditions per place. [2025-03-17 14:09:47,497 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 33 selfloop transitions, 1 changer transitions 39/77 dead transitions. [2025-03-17 14:09:47,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 77 transitions, 531 flow [2025-03-17 14:09:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:09:47,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 14:09:47,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 93 transitions. [2025-03-17 14:09:47,499 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40789473684210525 [2025-03-17 14:09:47,499 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 221 flow. Second operand 6 states and 93 transitions. [2025-03-17 14:09:47,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 77 transitions, 531 flow [2025-03-17 14:09:47,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 77 transitions, 462 flow, removed 12 selfloop flow, removed 6 redundant places. [2025-03-17 14:09:47,504 INFO L231 Difference]: Finished difference. Result has 59 places, 34 transitions, 142 flow [2025-03-17 14:09:47,504 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=142, PETRI_PLACES=59, PETRI_TRANSITIONS=34} [2025-03-17 14:09:47,504 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 18 predicate places. [2025-03-17 14:09:47,504 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 34 transitions, 142 flow [2025-03-17 14:09:47,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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) [2025-03-17 14:09:47,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:47,504 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] [2025-03-17 14:09:47,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 14:09:47,505 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:47,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:47,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1442081641, now seen corresponding path program 2 times [2025-03-17 14:09:47,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:47,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626602220] [2025-03-17 14:09:47,505 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:09:47,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:47,514 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-03-17 14:09:47,549 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 14:09:47,549 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:09:47,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:48,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:48,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:48,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626602220] [2025-03-17 14:09:48,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626602220] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:48,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:48,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 14:09:48,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373795926] [2025-03-17 14:09:48,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:48,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 14:09:48,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:48,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 14:09:48,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 14:09:48,852 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-03-17 14:09:48,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 34 transitions, 142 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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) [2025-03-17 14:09:48,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:48,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-03-17 14:09:48,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:49,241 INFO L124 PetriNetUnfolderBase]: 181/375 cut-off events. [2025-03-17 14:09:49,241 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2025-03-17 14:09:49,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1017 conditions, 375 events. 181/375 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1268 event pairs, 73 based on Foata normal form. 4/376 useless extension candidates. Maximal degree in co-relation 999. Up to 114 conditions per place. [2025-03-17 14:09:49,243 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 25 selfloop transitions, 3 changer transitions 27/59 dead transitions. [2025-03-17 14:09:49,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 59 transitions, 331 flow [2025-03-17 14:09:49,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:09:49,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:09:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 106 transitions. [2025-03-17 14:09:49,244 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34868421052631576 [2025-03-17 14:09:49,244 INFO L175 Difference]: Start difference. First operand has 59 places, 34 transitions, 142 flow. Second operand 8 states and 106 transitions. [2025-03-17 14:09:49,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 59 transitions, 331 flow [2025-03-17 14:09:49,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 303 flow, removed 7 selfloop flow, removed 9 redundant places. [2025-03-17 14:09:49,246 INFO L231 Difference]: Finished difference. Result has 57 places, 30 transitions, 118 flow [2025-03-17 14:09:49,246 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=30} [2025-03-17 14:09:49,247 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2025-03-17 14:09:49,247 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 30 transitions, 118 flow [2025-03-17 14:09:49,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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) [2025-03-17 14:09:49,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:49,247 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] [2025-03-17 14:09:49,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 14:09:49,248 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-03-17 14:09:49,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:49,248 INFO L85 PathProgramCache]: Analyzing trace with hash 625997711, now seen corresponding path program 3 times [2025-03-17 14:09:49,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:49,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045146547] [2025-03-17 14:09:49,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:09:49,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:49,258 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 1 equivalence classes. [2025-03-17 14:09:49,286 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 14:09:49,287 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 14:09:49,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:50,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:50,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045146547] [2025-03-17 14:09:50,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045146547] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:50,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:50,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 14:09:50,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561909716] [2025-03-17 14:09:50,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:50,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 14:09:50,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:50,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 14:09:50,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-03-17 14:09:50,440 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-03-17 14:09:50,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 30 transitions, 118 flow. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 11 states have internal predecessors, (99), 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) [2025-03-17 14:09:50,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:50,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-03-17 14:09:50,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:50,775 INFO L124 PetriNetUnfolderBase]: 70/160 cut-off events. [2025-03-17 14:09:50,776 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2025-03-17 14:09:50,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 160 events. 70/160 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 400 event pairs, 23 based on Foata normal form. 4/161 useless extension candidates. Maximal degree in co-relation 435. Up to 63 conditions per place. [2025-03-17 14:09:50,776 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2025-03-17 14:09:50,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 36 transitions, 200 flow [2025-03-17 14:09:50,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:09:50,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:09:50,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 89 transitions. [2025-03-17 14:09:50,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.29276315789473684 [2025-03-17 14:09:50,777 INFO L175 Difference]: Start difference. First operand has 57 places, 30 transitions, 118 flow. Second operand 8 states and 89 transitions. [2025-03-17 14:09:50,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 36 transitions, 200 flow [2025-03-17 14:09:50,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 36 transitions, 181 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-17 14:09:50,778 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2025-03-17 14:09:50,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2025-03-17 14:09:50,779 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2025-03-17 14:09:50,779 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2025-03-17 14:09:50,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 11 states have internal predecessors, (99), 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) [2025-03-17 14:09:50,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2025-03-17 14:09:50,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2025-03-17 14:09:50,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2025-03-17 14:09:50,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2025-03-17 14:09:50,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2025-03-17 14:09:50,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2025-03-17 14:09:50,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 14:09:50,784 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1] [2025-03-17 14:09:50,787 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 14:09:50,788 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 14:09:50,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:09:50 BasicIcfg [2025-03-17 14:09:50,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 14:09:50,794 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 14:09:50,794 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 14:09:50,794 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 14:09:50,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:09:38" (3/4) ... [2025-03-17 14:09:50,795 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 14:09:50,798 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-17 14:09:50,798 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-17 14:09:50,801 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2025-03-17 14:09:50,802 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-17 14:09:50,802 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-17 14:09:50,802 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 14:09:50,857 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 14:09:50,857 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 14:09:50,857 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 14:09:50,858 INFO L158 Benchmark]: Toolchain (without parser) took 13086.15ms. Allocated memory was 142.6MB in the beginning and 654.3MB in the end (delta: 511.7MB). Free memory was 105.1MB in the beginning and 535.4MB in the end (delta: -430.2MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2025-03-17 14:09:50,858 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:09:50,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.49ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 79.3MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 14:09:50,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.12ms. Allocated memory is still 142.6MB. Free memory was 79.3MB in the beginning and 76.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:09:50,859 INFO L158 Benchmark]: Boogie Preprocessor took 56.87ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 72.1MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:09:50,860 INFO L158 Benchmark]: IcfgBuilder took 664.59ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 65.5MB in the end (delta: 6.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2025-03-17 14:09:50,860 INFO L158 Benchmark]: TraceAbstraction took 11840.97ms. Allocated memory was 142.6MB in the beginning and 654.3MB in the end (delta: 511.7MB). Free memory was 64.8MB in the beginning and 539.6MB in the end (delta: -474.9MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2025-03-17 14:09:50,860 INFO L158 Benchmark]: Witness Printer took 63.70ms. Allocated memory is still 654.3MB. Free memory was 539.6MB in the beginning and 535.4MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:09:50,862 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.49ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 79.3MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.12ms. Allocated memory is still 142.6MB. Free memory was 79.3MB in the beginning and 76.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.87ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 72.1MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 664.59ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 65.5MB in the end (delta: 6.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11840.97ms. Allocated memory was 142.6MB in the beginning and 654.3MB in the end (delta: 511.7MB). Free memory was 64.8MB in the beginning and 539.6MB in the end (delta: -474.9MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * Witness Printer took 63.70ms. Allocated memory is still 654.3MB. Free memory was 539.6MB in the beginning and 535.4MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 833]: 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 5 procedures, 57 locations, 56 edges, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 493 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 490 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2098 IncrementalHoareTripleChecker+Invalid, 2193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 2 mSDtfsCounter, 2098 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=8, InterpolantAutomatonStates: 75, 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, 0.4s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 1905 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 14:09:50,877 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