./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe030_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe030_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:51:12,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:51:12,880 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:51:12,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:51:12,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:51:12,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:51:12,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:51:12,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:51:12,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:51:12,913 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:51:12,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:51:12,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:51:12,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:51:12,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:51:12,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:51:12,915 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:51:12,916 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:51:12,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:51:12,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:51:12,916 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-jdk21/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 -> 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 [2025-02-06 12:51:13,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:51:13,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:51:13,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:51:13,128 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:51:13,128 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:51:13,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe030_tso.i [2025-02-06 12:51:14,294 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/200e0def4/994e2cee461c443fb465ccc4e66518cc/FLAGb79819090 [2025-02-06 12:51:14,713 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:51:14,716 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.i [2025-02-06 12:51:14,732 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/200e0def4/994e2cee461c443fb465ccc4e66518cc/FLAGb79819090 [2025-02-06 12:51:14,742 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/200e0def4/994e2cee461c443fb465ccc4e66518cc [2025-02-06 12:51:14,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:51:14,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:51:14,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:51:14,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:51:14,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:51:14,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:51:14" (1/1) ... [2025-02-06 12:51:14,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d95fa23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:14, skipping insertion in model container [2025-02-06 12:51:14,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:51:14" (1/1) ... [2025-02-06 12:51:14,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:51:14,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:51:15,000 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:51:15,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:51:15,051 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:51:15,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15 WrapperNode [2025-02-06 12:51:15,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:51:15,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:51:15,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:51:15,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:51:15,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,074 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2025-02-06 12:51:15,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:51:15,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:51:15,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:51:15,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:51:15,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,081 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,088 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]. [2025-02-06 12:51:15,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,092 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,092 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:51:15,095 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:51:15,095 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:51:15,095 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:51:15,096 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (1/1) ... [2025-02-06 12:51:15,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:51:15,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:51:15,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:51:15,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:51:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:51:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:51:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:51:15,148 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:51:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:51:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:51:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:51:15,149 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:51:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:51:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:51:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:51:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:51:15,151 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:51:15,247 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:51:15,249 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:51:15,358 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:51:15,358 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:51:15,406 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:51:15,406 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:51:15,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:51:15 BoogieIcfgContainer [2025-02-06 12:51:15,407 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:51:15,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:51:15,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:51:15,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:51:15,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:51:14" (1/3) ... [2025-02-06 12:51:15,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144f0634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:51:15, skipping insertion in model container [2025-02-06 12:51:15,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:51:15" (2/3) ... [2025-02-06 12:51:15,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144f0634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:51:15, skipping insertion in model container [2025-02-06 12:51:15,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:51:15" (3/3) ... [2025-02-06 12:51:15,415 INFO L128 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2025-02-06 12:51:15,430 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:51:15,432 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe030_tso.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 12:51:15,432 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:51:15,460 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:51:15,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2025-02-06 12:51:15,499 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-02-06 12:51:15,501 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:51:15,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-02-06 12:51:15,503 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2025-02-06 12:51:15,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2025-02-06 12:51:15,510 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:51:15,517 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;@1504cfef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:51:15,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-06 12:51:15,525 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:51:15,525 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-02-06 12:51:15,525 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:51:15,525 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:15,526 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:51:15,526 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:15,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:15,530 INFO L85 PathProgramCache]: Analyzing trace with hash 501168049, now seen corresponding path program 1 times [2025-02-06 12:51:15,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:15,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062124434] [2025-02-06 12:51:15,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:15,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:15,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:51:15,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:51:15,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:15,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:15,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:15,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062124434] [2025-02-06 12:51:15,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062124434] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:15,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:15,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:51:15,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783959012] [2025-02-06 12:51:15,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:15,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:51:15,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:15,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:51:15,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:51:15,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:51:15,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:15,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:15,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:51:15,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:16,415 INFO L124 PetriNetUnfolderBase]: 4775/7461 cut-off events. [2025-02-06 12:51:16,415 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-02-06 12:51:16,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14356 conditions, 7461 events. 4775/7461 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 44097 event pairs, 4775 based on Foata normal form. 648/8104 useless extension candidates. Maximal degree in co-relation 14345. Up to 6804 conditions per place. [2025-02-06 12:51:16,459 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2025-02-06 12:51:16,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2025-02-06 12:51:16,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:51:16,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:51:16,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-02-06 12:51:16,474 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-02-06 12:51:16,475 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2025-02-06 12:51:16,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2025-02-06 12:51:16,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 12:51:16,482 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2025-02-06 12:51:16,484 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2025-02-06 12:51:16,488 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-02-06 12:51:16,489 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2025-02-06 12:51:16,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:16,489 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:16,489 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:51:16,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:51:16,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:16,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:16,491 INFO L85 PathProgramCache]: Analyzing trace with hash 501168548, now seen corresponding path program 1 times [2025-02-06 12:51:16,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:16,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613778821] [2025-02-06 12:51:16,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:16,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:51:16,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:51:16,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:16,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:16,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:16,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:16,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613778821] [2025-02-06 12:51:16,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613778821] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:16,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:16,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:51:16,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883142136] [2025-02-06 12:51:16,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:16,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:51:16,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:16,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:51:16,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:51:16,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:51:16,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 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) [2025-02-06 12:51:16,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:16,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:51:16,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:17,705 INFO L124 PetriNetUnfolderBase]: 8656/12544 cut-off events. [2025-02-06 12:51:17,706 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:51:17,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25003 conditions, 12544 events. 8656/12544 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 70752 event pairs, 3097 based on Foata normal form. 0/12239 useless extension candidates. Maximal degree in co-relation 24997. Up to 5674 conditions per place. [2025-02-06 12:51:17,767 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 46 selfloop transitions, 7 changer transitions 97/155 dead transitions. [2025-02-06 12:51:17,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 155 transitions, 622 flow [2025-02-06 12:51:17,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:51:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:51:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 233 transitions. [2025-02-06 12:51:17,771 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2025-02-06 12:51:17,772 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 233 transitions. [2025-02-06 12:51:17,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 155 transitions, 622 flow [2025-02-06 12:51:17,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 155 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:51:17,777 INFO L231 Difference]: Finished difference. Result has 58 places, 39 transitions, 171 flow [2025-02-06 12:51:17,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=171, PETRI_PLACES=58, PETRI_TRANSITIONS=39} [2025-02-06 12:51:17,778 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2025-02-06 12:51:17,779 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 171 flow [2025-02-06 12:51:17,779 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) [2025-02-06 12:51:17,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:17,780 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:51:17,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:51:17,780 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:17,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:17,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1899343293, now seen corresponding path program 1 times [2025-02-06 12:51:17,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:17,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55327564] [2025-02-06 12:51:17,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:17,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:17,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:51:17,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:51:17,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:17,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:18,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:18,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55327564] [2025-02-06 12:51:18,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55327564] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:18,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:18,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:51:18,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55943427] [2025-02-06 12:51:18,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:18,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:51:18,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:18,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:51:18,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:51:18,024 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:51:18,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 39 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:18,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:18,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:51:18,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:18,826 INFO L124 PetriNetUnfolderBase]: 6699/9877 cut-off events. [2025-02-06 12:51:18,826 INFO L125 PetriNetUnfolderBase]: For 15987/15987 co-relation queries the response was YES. [2025-02-06 12:51:18,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30361 conditions, 9877 events. 6699/9877 cut-off events. For 15987/15987 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 55745 event pairs, 949 based on Foata normal form. 286/10158 useless extension candidates. Maximal degree in co-relation 30346. Up to 5428 conditions per place. [2025-02-06 12:51:18,874 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 58 selfloop transitions, 11 changer transitions 86/160 dead transitions. [2025-02-06 12:51:18,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 160 transitions, 1041 flow [2025-02-06 12:51:18,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:51:18,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:51:18,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 238 transitions. [2025-02-06 12:51:18,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5534883720930233 [2025-02-06 12:51:18,880 INFO L175 Difference]: Start difference. First operand has 58 places, 39 transitions, 171 flow. Second operand 10 states and 238 transitions. [2025-02-06 12:51:18,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 160 transitions, 1041 flow [2025-02-06 12:51:19,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 160 transitions, 917 flow, removed 30 selfloop flow, removed 4 redundant places. [2025-02-06 12:51:19,101 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 269 flow [2025-02-06 12:51:19,102 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=269, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2025-02-06 12:51:19,102 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2025-02-06 12:51:19,102 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 269 flow [2025-02-06 12:51:19,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:19,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:19,102 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:51:19,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:51:19,103 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:19,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:19,103 INFO L85 PathProgramCache]: Analyzing trace with hash 930763531, now seen corresponding path program 1 times [2025-02-06 12:51:19,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:19,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229012169] [2025-02-06 12:51:19,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:19,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:19,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:51:19,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:51:19,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:19,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:19,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:19,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229012169] [2025-02-06 12:51:19,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229012169] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:19,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:19,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:51:19,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627758821] [2025-02-06 12:51:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:19,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:51:19,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:19,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:51:19,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:51:19,269 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:51:19,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:19,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:19,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:51:19,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:20,064 INFO L124 PetriNetUnfolderBase]: 6332/9332 cut-off events. [2025-02-06 12:51:20,064 INFO L125 PetriNetUnfolderBase]: For 29984/29990 co-relation queries the response was YES. [2025-02-06 12:51:20,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32481 conditions, 9332 events. 6332/9332 cut-off events. For 29984/29990 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 51339 event pairs, 1763 based on Foata normal form. 234/9563 useless extension candidates. Maximal degree in co-relation 32459. Up to 5380 conditions per place. [2025-02-06 12:51:20,117 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 63 selfloop transitions, 17 changer transitions 78/163 dead transitions. [2025-02-06 12:51:20,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 163 transitions, 1157 flow [2025-02-06 12:51:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:51:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:51:20,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 232 transitions. [2025-02-06 12:51:20,119 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5395348837209303 [2025-02-06 12:51:20,119 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 269 flow. Second operand 10 states and 232 transitions. [2025-02-06 12:51:20,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 163 transitions, 1157 flow [2025-02-06 12:51:20,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 163 transitions, 1125 flow, removed 16 selfloop flow, removed 0 redundant places. [2025-02-06 12:51:20,156 INFO L231 Difference]: Finished difference. Result has 77 places, 55 transitions, 441 flow [2025-02-06 12:51:20,156 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=441, PETRI_PLACES=77, PETRI_TRANSITIONS=55} [2025-02-06 12:51:20,157 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 30 predicate places. [2025-02-06 12:51:20,157 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 55 transitions, 441 flow [2025-02-06 12:51:20,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:20,157 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:20,157 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:51:20,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:51:20,158 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:20,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:20,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1570912780, now seen corresponding path program 1 times [2025-02-06 12:51:20,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:20,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836971042] [2025-02-06 12:51:20,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:20,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:20,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:51:20,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:51:20,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:20,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:20,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:20,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836971042] [2025-02-06 12:51:20,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836971042] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:20,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:20,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:51:20,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29554992] [2025-02-06 12:51:20,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:20,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:51:20,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:20,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:51:20,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:51:20,269 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:51:20,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 55 transitions, 441 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-02-06 12:51:20,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:20,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:51:20,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:21,161 INFO L124 PetriNetUnfolderBase]: 6003/9189 cut-off events. [2025-02-06 12:51:21,169 INFO L125 PetriNetUnfolderBase]: For 43352/43352 co-relation queries the response was YES. [2025-02-06 12:51:21,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35661 conditions, 9189 events. 6003/9189 cut-off events. For 43352/43352 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 53258 event pairs, 2480 based on Foata normal form. 178/9365 useless extension candidates. Maximal degree in co-relation 35628. Up to 7452 conditions per place. [2025-02-06 12:51:21,238 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 64 selfloop transitions, 7 changer transitions 51/127 dead transitions. [2025-02-06 12:51:21,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 127 transitions, 1181 flow [2025-02-06 12:51:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:51:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:51:21,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 150 transitions. [2025-02-06 12:51:21,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4983388704318937 [2025-02-06 12:51:21,240 INFO L175 Difference]: Start difference. First operand has 77 places, 55 transitions, 441 flow. Second operand 7 states and 150 transitions. [2025-02-06 12:51:21,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 127 transitions, 1181 flow [2025-02-06 12:51:21,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 127 transitions, 1141 flow, removed 20 selfloop flow, removed 4 redundant places. [2025-02-06 12:51:21,326 INFO L231 Difference]: Finished difference. Result has 78 places, 60 transitions, 520 flow [2025-02-06 12:51:21,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=520, PETRI_PLACES=78, PETRI_TRANSITIONS=60} [2025-02-06 12:51:21,327 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 31 predicate places. [2025-02-06 12:51:21,327 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 60 transitions, 520 flow [2025-02-06 12:51:21,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-02-06 12:51:21,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:21,327 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] [2025-02-06 12:51:21,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:51:21,328 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:21,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:21,328 INFO L85 PathProgramCache]: Analyzing trace with hash 400031002, now seen corresponding path program 1 times [2025-02-06 12:51:21,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:21,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254391546] [2025-02-06 12:51:21,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:21,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:21,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:51:21,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:51:21,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:21,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:21,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:21,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254391546] [2025-02-06 12:51:21,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254391546] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:21,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:21,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:51:21,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109353100] [2025-02-06 12:51:21,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:21,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:51:21,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:21,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:51:21,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:51:21,418 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:51:21,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 60 transitions, 520 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2025-02-06 12:51:21,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:21,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:51:21,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:22,216 INFO L124 PetriNetUnfolderBase]: 8308/12537 cut-off events. [2025-02-06 12:51:22,216 INFO L125 PetriNetUnfolderBase]: For 67973/67983 co-relation queries the response was YES. [2025-02-06 12:51:22,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49160 conditions, 12537 events. 8308/12537 cut-off events. For 67973/67983 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 75784 event pairs, 2679 based on Foata normal form. 256/12790 useless extension candidates. Maximal degree in co-relation 49124. Up to 6197 conditions per place. [2025-02-06 12:51:22,472 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 68 selfloop transitions, 8 changer transitions 62/143 dead transitions. [2025-02-06 12:51:22,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 143 transitions, 1326 flow [2025-02-06 12:51:22,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:51:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:51:22,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 165 transitions. [2025-02-06 12:51:22,474 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5481727574750831 [2025-02-06 12:51:22,474 INFO L175 Difference]: Start difference. First operand has 78 places, 60 transitions, 520 flow. Second operand 7 states and 165 transitions. [2025-02-06 12:51:22,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 143 transitions, 1326 flow [2025-02-06 12:51:22,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 143 transitions, 1285 flow, removed 17 selfloop flow, removed 7 redundant places. [2025-02-06 12:51:22,562 INFO L231 Difference]: Finished difference. Result has 78 places, 58 transitions, 507 flow [2025-02-06 12:51:22,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=507, PETRI_PLACES=78, PETRI_TRANSITIONS=58} [2025-02-06 12:51:22,563 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 31 predicate places. [2025-02-06 12:51:22,563 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 58 transitions, 507 flow [2025-02-06 12:51:22,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2025-02-06 12:51:22,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:22,563 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] [2025-02-06 12:51:22,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:51:22,564 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:22,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1952422494, now seen corresponding path program 1 times [2025-02-06 12:51:22,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:22,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255163942] [2025-02-06 12:51:22,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:22,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:22,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:51:22,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:51:22,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:22,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:22,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:22,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255163942] [2025-02-06 12:51:22,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255163942] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:22,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:22,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:51:22,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115140245] [2025-02-06 12:51:22,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:22,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:51:22,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:22,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:51:22,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:51:22,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:51:22,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 58 transitions, 507 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-02-06 12:51:22,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:22,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:51:22,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:23,815 INFO L124 PetriNetUnfolderBase]: 11091/16386 cut-off events. [2025-02-06 12:51:23,815 INFO L125 PetriNetUnfolderBase]: For 94022/94022 co-relation queries the response was YES. [2025-02-06 12:51:23,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62848 conditions, 16386 events. 11091/16386 cut-off events. For 94022/94022 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 100294 event pairs, 2540 based on Foata normal form. 252/16634 useless extension candidates. Maximal degree in co-relation 62813. Up to 6772 conditions per place. [2025-02-06 12:51:23,922 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 70 selfloop transitions, 22 changer transitions 74/171 dead transitions. [2025-02-06 12:51:23,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 171 transitions, 1519 flow [2025-02-06 12:51:23,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:51:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:51:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 233 transitions. [2025-02-06 12:51:23,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.541860465116279 [2025-02-06 12:51:23,924 INFO L175 Difference]: Start difference. First operand has 78 places, 58 transitions, 507 flow. Second operand 10 states and 233 transitions. [2025-02-06 12:51:23,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 171 transitions, 1519 flow [2025-02-06 12:51:24,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 171 transitions, 1437 flow, removed 32 selfloop flow, removed 6 redundant places. [2025-02-06 12:51:24,243 INFO L231 Difference]: Finished difference. Result has 86 places, 59 transitions, 617 flow [2025-02-06 12:51:24,244 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=617, PETRI_PLACES=86, PETRI_TRANSITIONS=59} [2025-02-06 12:51:24,244 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 39 predicate places. [2025-02-06 12:51:24,244 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 59 transitions, 617 flow [2025-02-06 12:51:24,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-02-06 12:51:24,245 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:24,245 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] [2025-02-06 12:51:24,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:51:24,245 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:24,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:24,245 INFO L85 PathProgramCache]: Analyzing trace with hash 292153454, now seen corresponding path program 1 times [2025-02-06 12:51:24,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:24,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485646815] [2025-02-06 12:51:24,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:24,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:24,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:51:24,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:51:24,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:24,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:24,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:24,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485646815] [2025-02-06 12:51:24,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485646815] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:24,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:24,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:51:24,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454451535] [2025-02-06 12:51:24,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:24,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:51:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:24,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:51:24,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:51:24,336 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:51:24,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 59 transitions, 617 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2025-02-06 12:51:24,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:24,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:51:24,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:25,618 INFO L124 PetriNetUnfolderBase]: 15101/22943 cut-off events. [2025-02-06 12:51:25,618 INFO L125 PetriNetUnfolderBase]: For 139038/139038 co-relation queries the response was YES. [2025-02-06 12:51:25,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85464 conditions, 22943 events. 15101/22943 cut-off events. For 139038/139038 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 154193 event pairs, 5122 based on Foata normal form. 316/23255 useless extension candidates. Maximal degree in co-relation 85424. Up to 10510 conditions per place. [2025-02-06 12:51:25,799 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 60 selfloop transitions, 7 changer transitions 68/140 dead transitions. [2025-02-06 12:51:25,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 140 transitions, 1525 flow [2025-02-06 12:51:25,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:51:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:51:25,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 161 transitions. [2025-02-06 12:51:25,800 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5348837209302325 [2025-02-06 12:51:25,801 INFO L175 Difference]: Start difference. First operand has 86 places, 59 transitions, 617 flow. Second operand 7 states and 161 transitions. [2025-02-06 12:51:25,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 140 transitions, 1525 flow [2025-02-06 12:51:26,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 140 transitions, 1447 flow, removed 39 selfloop flow, removed 6 redundant places. [2025-02-06 12:51:26,188 INFO L231 Difference]: Finished difference. Result has 85 places, 55 transitions, 558 flow [2025-02-06 12:51:26,188 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=558, PETRI_PLACES=85, PETRI_TRANSITIONS=55} [2025-02-06 12:51:26,188 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 38 predicate places. [2025-02-06 12:51:26,188 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 55 transitions, 558 flow [2025-02-06 12:51:26,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2025-02-06 12:51:26,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:26,188 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] [2025-02-06 12:51:26,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 12:51:26,189 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:26,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:26,189 INFO L85 PathProgramCache]: Analyzing trace with hash -163640959, now seen corresponding path program 1 times [2025-02-06 12:51:26,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:26,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878264871] [2025-02-06 12:51:26,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:26,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:26,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 12:51:26,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 12:51:26,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:26,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:26,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:26,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878264871] [2025-02-06 12:51:26,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878264871] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:26,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:26,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:51:26,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170565322] [2025-02-06 12:51:26,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:26,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:51:26,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:26,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:51:26,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:51:26,249 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-06 12:51:26,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 55 transitions, 558 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 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) [2025-02-06 12:51:26,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:26,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-06 12:51:26,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:27,246 INFO L124 PetriNetUnfolderBase]: 10958/17325 cut-off events. [2025-02-06 12:51:27,247 INFO L125 PetriNetUnfolderBase]: For 94634/94634 co-relation queries the response was YES. [2025-02-06 12:51:27,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58128 conditions, 17325 events. 10958/17325 cut-off events. For 94634/94634 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 117418 event pairs, 2225 based on Foata normal form. 856/18177 useless extension candidates. Maximal degree in co-relation 58088. Up to 9256 conditions per place. [2025-02-06 12:51:27,346 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 99 selfloop transitions, 5 changer transitions 13/122 dead transitions. [2025-02-06 12:51:27,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 122 transitions, 1570 flow [2025-02-06 12:51:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:51:27,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:51:27,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2025-02-06 12:51:27,347 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2025-02-06 12:51:27,347 INFO L175 Difference]: Start difference. First operand has 85 places, 55 transitions, 558 flow. Second operand 4 states and 103 transitions. [2025-02-06 12:51:27,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 122 transitions, 1570 flow [2025-02-06 12:51:27,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 122 transitions, 1416 flow, removed 24 selfloop flow, removed 10 redundant places. [2025-02-06 12:51:27,420 INFO L231 Difference]: Finished difference. Result has 76 places, 58 transitions, 520 flow [2025-02-06 12:51:27,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=520, PETRI_PLACES=76, PETRI_TRANSITIONS=58} [2025-02-06 12:51:27,421 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 29 predicate places. [2025-02-06 12:51:27,421 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 58 transitions, 520 flow [2025-02-06 12:51:27,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 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) [2025-02-06 12:51:27,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:27,422 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] [2025-02-06 12:51:27,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 12:51:27,422 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:27,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:27,422 INFO L85 PathProgramCache]: Analyzing trace with hash -488528768, now seen corresponding path program 1 times [2025-02-06 12:51:27,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:27,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108727293] [2025-02-06 12:51:27,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:27,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:27,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 12:51:27,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 12:51:27,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:27,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:27,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:27,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:27,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108727293] [2025-02-06 12:51:27,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108727293] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:27,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:27,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:51:27,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056065300] [2025-02-06 12:51:27,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:27,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:51:27,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:27,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:51:27,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:51:27,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-06 12:51:27,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 58 transitions, 520 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:27,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:27,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-06 12:51:27,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:28,072 INFO L124 PetriNetUnfolderBase]: 6543/10272 cut-off events. [2025-02-06 12:51:28,073 INFO L125 PetriNetUnfolderBase]: For 39395/39395 co-relation queries the response was YES. [2025-02-06 12:51:28,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34994 conditions, 10272 events. 6543/10272 cut-off events. For 39395/39395 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 63222 event pairs, 857 based on Foata normal form. 672/10940 useless extension candidates. Maximal degree in co-relation 34960. Up to 3216 conditions per place. [2025-02-06 12:51:28,130 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 70 selfloop transitions, 8 changer transitions 46/129 dead transitions. [2025-02-06 12:51:28,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 129 transitions, 1456 flow [2025-02-06 12:51:28,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:51:28,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:51:28,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2025-02-06 12:51:28,132 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6093023255813953 [2025-02-06 12:51:28,135 INFO L175 Difference]: Start difference. First operand has 76 places, 58 transitions, 520 flow. Second operand 5 states and 131 transitions. [2025-02-06 12:51:28,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 129 transitions, 1456 flow [2025-02-06 12:51:28,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 129 transitions, 1394 flow, removed 27 selfloop flow, removed 4 redundant places. [2025-02-06 12:51:28,187 INFO L231 Difference]: Finished difference. Result has 78 places, 49 transitions, 408 flow [2025-02-06 12:51:28,187 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=78, PETRI_TRANSITIONS=49} [2025-02-06 12:51:28,187 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 31 predicate places. [2025-02-06 12:51:28,187 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 49 transitions, 408 flow [2025-02-06 12:51:28,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:28,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:51:28,187 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:51:28,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 12:51:28,187 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:51:28,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:51:28,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1824789745, now seen corresponding path program 1 times [2025-02-06 12:51:28,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:51:28,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821142846] [2025-02-06 12:51:28,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:51:28,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:51:28,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 12:51:28,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 12:51:28,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:51:28,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:51:28,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:51:28,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:51:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821142846] [2025-02-06 12:51:28,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821142846] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:51:28,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:51:28,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:51:28,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579661418] [2025-02-06 12:51:28,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:51:28,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:51:28,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:51:28,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:51:28,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:51:28,330 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-06 12:51:28,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 49 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:28,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:51:28,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-06 12:51:28,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:51:28,657 INFO L124 PetriNetUnfolderBase]: 1537/2443 cut-off events. [2025-02-06 12:51:28,657 INFO L125 PetriNetUnfolderBase]: For 9181/9181 co-relation queries the response was YES. [2025-02-06 12:51:28,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8687 conditions, 2443 events. 1537/2443 cut-off events. For 9181/9181 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 11769 event pairs, 237 based on Foata normal form. 120/2561 useless extension candidates. Maximal degree in co-relation 8665. Up to 876 conditions per place. [2025-02-06 12:51:28,668 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 86/86 dead transitions. [2025-02-06 12:51:28,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 86 transitions, 883 flow [2025-02-06 12:51:28,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:51:28,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:51:28,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2025-02-06 12:51:28,672 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2025-02-06 12:51:28,672 INFO L175 Difference]: Start difference. First operand has 78 places, 49 transitions, 408 flow. Second operand 6 states and 130 transitions. [2025-02-06 12:51:28,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 86 transitions, 883 flow [2025-02-06 12:51:28,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 86 transitions, 705 flow, removed 10 selfloop flow, removed 14 redundant places. [2025-02-06 12:51:28,689 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2025-02-06 12:51:28,690 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2025-02-06 12:51:28,690 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2025-02-06 12:51:28,690 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2025-02-06 12:51:28,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:51:28,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-06 12:51:28,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-06 12:51:28,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-06 12:51:28,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-06 12:51:28,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-06 12:51:28,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 12:51:28,700 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:51:28,702 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:51:28,702 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:51:28,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:51:28 BasicIcfg [2025-02-06 12:51:28,711 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:51:28,711 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:51:28,714 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:51:28,714 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:51:28,715 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:51:15" (3/4) ... [2025-02-06 12:51:28,717 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:51:28,718 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 12:51:28,722 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 12:51:28,722 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 12:51:28,725 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-02-06 12:51:28,726 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 12:51:28,726 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-06 12:51:28,726 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 12:51:28,835 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:51:28,835 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:51:28,835 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:51:28,836 INFO L158 Benchmark]: Toolchain (without parser) took 14092.04ms. Allocated memory was 201.3MB in the beginning and 1.1GB in the end (delta: 947.9MB). Free memory was 157.0MB in the beginning and 382.5MB in the end (delta: -225.6MB). Peak memory consumption was 717.5MB. Max. memory is 16.1GB. [2025-02-06 12:51:28,836 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 218.1MB. Free memory is still 133.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:51:28,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.55ms. Allocated memory is still 201.3MB. Free memory was 156.5MB in the beginning and 137.0MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:51:28,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.66ms. Allocated memory is still 201.3MB. Free memory was 137.0MB in the beginning and 135.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:51:28,839 INFO L158 Benchmark]: Boogie Preprocessor took 19.41ms. Allocated memory is still 201.3MB. Free memory was 135.4MB in the beginning and 133.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:51:28,840 INFO L158 Benchmark]: IcfgBuilder took 311.90ms. Allocated memory is still 201.3MB. Free memory was 133.6MB in the beginning and 114.4MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:51:28,840 INFO L158 Benchmark]: TraceAbstraction took 13301.97ms. Allocated memory was 201.3MB in the beginning and 1.1GB in the end (delta: 947.9MB). Free memory was 113.6MB in the beginning and 390.9MB in the end (delta: -277.3MB). Peak memory consumption was 667.2MB. Max. memory is 16.1GB. [2025-02-06 12:51:28,840 INFO L158 Benchmark]: Witness Printer took 124.51ms. Allocated memory is still 1.1GB. Free memory was 390.9MB in the beginning and 382.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:51:28,842 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 218.1MB. Free memory is still 133.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.55ms. Allocated memory is still 201.3MB. Free memory was 156.5MB in the beginning and 137.0MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.66ms. Allocated memory is still 201.3MB. Free memory was 137.0MB in the beginning and 135.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.41ms. Allocated memory is still 201.3MB. Free memory was 135.4MB in the beginning and 133.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 311.90ms. Allocated memory is still 201.3MB. Free memory was 133.6MB in the beginning and 114.4MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13301.97ms. Allocated memory was 201.3MB in the beginning and 1.1GB in the end (delta: 947.9MB). Free memory was 113.6MB in the beginning and 390.9MB in the end (delta: -277.3MB). Peak memory consumption was 667.2MB. Max. memory is 16.1GB. * Witness Printer took 124.51ms. Allocated memory is still 1.1GB. Free memory was 390.9MB in the beginning and 382.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 772]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 802 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 798 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1954 IncrementalHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 2 mSDtfsCounter, 1954 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=617occurred in iteration=7, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 12:51:28,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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