./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix027_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d 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/mix027_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 ca8042a994ed433e8dc5deebabd166a79d030a0388291f832432b8dc85340f9d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:17:41,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:17:41,337 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:17:41,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:17:41,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:17:41,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:17:41,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:17:41,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:17:41,366 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:17:41,366 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:17:41,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:17:41,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:17:41,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:17:41,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:17:41,368 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:17:41,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:17:41,368 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:17:41,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:17:41,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:17:41,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:17:41,368 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:17:41,368 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:17:41,368 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:17:41,369 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:17:41,369 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:17:41,369 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:17:41,369 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:17:41,369 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:17:41,369 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:17:41,369 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:17:41,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:17:41,369 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:17:41,370 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:17:41,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:17:41,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:17:41,370 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:17:41,370 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:17:41,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:17:41,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:17:41,371 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:17:41,371 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:17:41,371 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:17:41,371 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 -> ca8042a994ed433e8dc5deebabd166a79d030a0388291f832432b8dc85340f9d [2025-02-08 08:17:41,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:17:41,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:17:41,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:17:41,592 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:17:41,592 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:17:41,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix027_tso.i [2025-02-08 08:17:42,772 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f887b16e/8ea788e944354e79a00600c679a72d20/FLAG109589209 [2025-02-08 08:17:43,043 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:17:43,047 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix027_tso.i [2025-02-08 08:17:43,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f887b16e/8ea788e944354e79a00600c679a72d20/FLAG109589209 [2025-02-08 08:17:43,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f887b16e/8ea788e944354e79a00600c679a72d20 [2025-02-08 08:17:43,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:17:43,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:17:43,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:17:43,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:17:43,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:17:43,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d56481c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43, skipping insertion in model container [2025-02-08 08:17:43,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,118 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:17:43,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:17:43,360 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:17:43,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:17:43,430 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:17:43,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43 WrapperNode [2025-02-08 08:17:43,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:17:43,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:17:43,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:17:43,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:17:43,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,466 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2025-02-08 08:17:43,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:17:43,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:17:43,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:17:43,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:17:43,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,476 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,487 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]. [2025-02-08 08:17:43,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,492 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:17:43,498 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:17:43,498 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:17:43,498 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:17:43,499 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (1/1) ... [2025-02-08 08:17:43,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:17:43,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:17:43,532 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) [2025-02-08 08:17:43,538 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 [2025-02-08 08:17:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:17:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:17:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:17:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:17:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:17:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:17:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:17:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:17:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 08:17:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 08:17:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:17:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:17:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:17:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:17:43,555 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:17:43,664 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:17:43,665 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:17:43,997 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:17:43,997 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:17:44,219 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:17:44,220 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:17:44,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:17:44 BoogieIcfgContainer [2025-02-08 08:17:44,220 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:17:44,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:17:44,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:17:44,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:17:44,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:17:43" (1/3) ... [2025-02-08 08:17:44,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7807e36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:17:44, skipping insertion in model container [2025-02-08 08:17:44,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:17:43" (2/3) ... [2025-02-08 08:17:44,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7807e36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:17:44, skipping insertion in model container [2025-02-08 08:17:44,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:17:44" (3/3) ... [2025-02-08 08:17:44,231 INFO L128 eAbstractionObserver]: Analyzing ICFG mix027_tso.i [2025-02-08 08:17:44,245 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:17:44,247 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix027_tso.i that has 5 procedures, 53 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-08 08:17:44,248 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:17:44,310 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:17:44,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2025-02-08 08:17:44,381 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2025-02-08 08:17:44,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:17:44,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2025-02-08 08:17:44,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2025-02-08 08:17:44,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2025-02-08 08:17:44,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:17:44,411 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;@2d901d81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:17:44,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-08 08:17:44,417 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:17:44,418 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-02-08 08:17:44,418 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:17:44,418 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:17:44,419 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 08:17:44,419 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:17:44,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:17:44,424 INFO L85 PathProgramCache]: Analyzing trace with hash 170383331, now seen corresponding path program 1 times [2025-02-08 08:17:44,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:17:44,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420952882] [2025-02-08 08:17:44,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:17:44,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:17:44,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 08:17:44,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 08:17:44,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:17:44,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:17:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:17:44,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:17:44,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420952882] [2025-02-08 08:17:44,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420952882] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:17:44,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:17:44,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:17:44,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118918361] [2025-02-08 08:17:44,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:17:44,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:17:44,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:17:44,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:17:44,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:17:44,781 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-02-08 08:17:44,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 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) [2025-02-08 08:17:44,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:17:44,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-02-08 08:17:44,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:17:49,485 INFO L124 PetriNetUnfolderBase]: 50459/66904 cut-off events. [2025-02-08 08:17:49,486 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2025-02-08 08:17:49,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133524 conditions, 66904 events. 50459/66904 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 1899. Compared 405178 event pairs, 6249 based on Foata normal form. 2988/69835 useless extension candidates. Maximal degree in co-relation 133512. Up to 57231 conditions per place. [2025-02-08 08:17:50,091 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2025-02-08 08:17:50,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 75 transitions, 302 flow [2025-02-08 08:17:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:17:50,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:17:50,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2025-02-08 08:17:50,101 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-08 08:17:50,102 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 108 transitions. [2025-02-08 08:17:50,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 75 transitions, 302 flow [2025-02-08 08:17:50,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 296 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:17:50,116 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2025-02-08 08:17:50,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2025-02-08 08:17:50,124 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2025-02-08 08:17:50,125 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2025-02-08 08:17:50,125 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) [2025-02-08 08:17:50,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:17:50,126 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:17:50,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:17:50,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:17:50,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:17:50,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1391848475, now seen corresponding path program 1 times [2025-02-08 08:17:50,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:17:50,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363838275] [2025-02-08 08:17:50,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:17:50,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:17:50,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:17:50,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:17:50,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:17:50,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:17:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:17:50,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:17:50,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363838275] [2025-02-08 08:17:50,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363838275] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:17:50,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:17:50,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:17:50,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120379108] [2025-02-08 08:17:50,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:17:50,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:17:50,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:17:50,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:17:50,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:17:50,233 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-08 08:17:50,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2025-02-08 08:17:50,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:17:50,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-08 08:17:50,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:17:54,452 INFO L124 PetriNetUnfolderBase]: 45383/63219 cut-off events. [2025-02-08 08:17:54,453 INFO L125 PetriNetUnfolderBase]: For 2352/2352 co-relation queries the response was YES. [2025-02-08 08:17:54,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125601 conditions, 63219 events. 45383/63219 cut-off events. For 2352/2352 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 408239 event pairs, 45383 based on Foata normal form. 1512/64449 useless extension candidates. Maximal degree in co-relation 125591. Up to 59508 conditions per place. [2025-02-08 08:17:54,735 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2025-02-08 08:17:54,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2025-02-08 08:17:54,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:17:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:17:54,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-08 08:17:54,737 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2025-02-08 08:17:54,737 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2025-02-08 08:17:54,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2025-02-08 08:17:54,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:17:54,740 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2025-02-08 08:17:54,740 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2025-02-08 08:17:54,741 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2025-02-08 08:17:54,741 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2025-02-08 08:17:54,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2025-02-08 08:17:54,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:17:54,741 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:17:54,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:17:54,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:17:54,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:17:54,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1391849628, now seen corresponding path program 1 times [2025-02-08 08:17:54,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:17:54,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809146120] [2025-02-08 08:17:54,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:17:54,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:17:54,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:17:54,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:17:54,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:17:54,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:17:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:17:55,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:17:55,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809146120] [2025-02-08 08:17:55,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809146120] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:17:55,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:17:55,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:17:55,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881634589] [2025-02-08 08:17:55,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:17:55,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:17:55,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:17:55,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:17:55,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:17:55,196 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-08 08:17:55,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2025-02-08 08:17:55,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:17:55,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-08 08:17:55,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:18:01,361 INFO L124 PetriNetUnfolderBase]: 67868/92085 cut-off events. [2025-02-08 08:18:01,362 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:18:01,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181839 conditions, 92085 events. 67868/92085 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2724. Compared 584820 event pairs, 8819 based on Foata normal form. 0/90378 useless extension candidates. Maximal degree in co-relation 181833. Up to 52705 conditions per place. [2025-02-08 08:18:01,975 INFO L140 encePairwiseOnDemand]: 38/54 looper letters, 66 selfloop transitions, 14 changer transitions 149/235 dead transitions. [2025-02-08 08:18:01,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 235 transitions, 942 flow [2025-02-08 08:18:01,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:18:01,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:18:01,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 364 transitions. [2025-02-08 08:18:01,981 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5617283950617284 [2025-02-08 08:18:01,982 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 12 states and 364 transitions. [2025-02-08 08:18:01,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 235 transitions, 942 flow [2025-02-08 08:18:01,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 235 transitions, 941 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:18:01,995 INFO L231 Difference]: Finished difference. Result has 73 places, 54 transitions, 244 flow [2025-02-08 08:18:01,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=244, PETRI_PLACES=73, PETRI_TRANSITIONS=54} [2025-02-08 08:18:01,996 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 12 predicate places. [2025-02-08 08:18:01,996 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 54 transitions, 244 flow [2025-02-08 08:18:01,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2025-02-08 08:18:01,996 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:18:01,996 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:18:01,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:18:01,996 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:18:01,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:18:01,997 INFO L85 PathProgramCache]: Analyzing trace with hash -746688517, now seen corresponding path program 1 times [2025-02-08 08:18:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:18:01,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044457240] [2025-02-08 08:18:01,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:18:01,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:18:02,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:18:02,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:18:02,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:18:02,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:18:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:18:02,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:18:02,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044457240] [2025-02-08 08:18:02,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044457240] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:18:02,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:18:02,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:18:02,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208043991] [2025-02-08 08:18:02,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:18:02,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:18:02,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:18:02,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:18:02,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:18:02,650 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-08 08:18:02,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 54 transitions, 244 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) [2025-02-08 08:18:02,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:18:02,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-08 08:18:02,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:18:07,984 INFO L124 PetriNetUnfolderBase]: 51617/70299 cut-off events. [2025-02-08 08:18:07,985 INFO L125 PetriNetUnfolderBase]: For 115237/115290 co-relation queries the response was YES. [2025-02-08 08:18:08,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241170 conditions, 70299 events. 51617/70299 cut-off events. For 115237/115290 co-relation queries the response was YES. Maximal size of possible extension queue 1990. Compared 433730 event pairs, 9950 based on Foata normal form. 1656/71904 useless extension candidates. Maximal degree in co-relation 241154. Up to 39049 conditions per place. [2025-02-08 08:18:08,467 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 74 selfloop transitions, 12 changer transitions 118/210 dead transitions. [2025-02-08 08:18:08,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 210 transitions, 1363 flow [2025-02-08 08:18:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:18:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:18:08,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 295 transitions. [2025-02-08 08:18:08,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5462962962962963 [2025-02-08 08:18:08,473 INFO L175 Difference]: Start difference. First operand has 73 places, 54 transitions, 244 flow. Second operand 10 states and 295 transitions. [2025-02-08 08:18:08,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 210 transitions, 1363 flow [2025-02-08 08:18:12,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 210 transitions, 1257 flow, removed 53 selfloop flow, removed 5 redundant places. [2025-02-08 08:18:12,889 INFO L231 Difference]: Finished difference. Result has 77 places, 61 transitions, 355 flow [2025-02-08 08:18:12,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=355, PETRI_PLACES=77, PETRI_TRANSITIONS=61} [2025-02-08 08:18:12,889 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 16 predicate places. [2025-02-08 08:18:12,889 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 61 transitions, 355 flow [2025-02-08 08:18:12,890 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) [2025-02-08 08:18:12,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:18:12,890 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] [2025-02-08 08:18:12,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:18:12,890 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:18:12,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:18:12,890 INFO L85 PathProgramCache]: Analyzing trace with hash 913920529, now seen corresponding path program 1 times [2025-02-08 08:18:12,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:18:12,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185952296] [2025-02-08 08:18:12,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:18:12,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:18:12,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 08:18:12,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:18:12,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:18:12,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:18:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:18:13,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:18:13,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185952296] [2025-02-08 08:18:13,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185952296] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:18:13,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:18:13,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:18:13,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420747930] [2025-02-08 08:18:13,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:18:13,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:18:13,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:18:13,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:18:13,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:18:13,375 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-08 08:18:13,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 61 transitions, 355 flow. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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) [2025-02-08 08:18:13,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:18:13,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-08 08:18:13,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:18:18,806 INFO L124 PetriNetUnfolderBase]: 51878/70466 cut-off events. [2025-02-08 08:18:18,807 INFO L125 PetriNetUnfolderBase]: For 124997/125004 co-relation queries the response was YES. [2025-02-08 08:18:19,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246427 conditions, 70466 events. 51878/70466 cut-off events. For 124997/125004 co-relation queries the response was YES. Maximal size of possible extension queue 1873. Compared 437886 event pairs, 7116 based on Foata normal form. 1372/71831 useless extension candidates. Maximal degree in co-relation 246405. Up to 48384 conditions per place. [2025-02-08 08:18:19,500 INFO L140 encePairwiseOnDemand]: 38/54 looper letters, 93 selfloop transitions, 34 changer transitions 125/258 dead transitions. [2025-02-08 08:18:19,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 258 transitions, 1919 flow [2025-02-08 08:18:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:18:19,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:18:19,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 311 transitions. [2025-02-08 08:18:19,504 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.575925925925926 [2025-02-08 08:18:19,504 INFO L175 Difference]: Start difference. First operand has 77 places, 61 transitions, 355 flow. Second operand 10 states and 311 transitions. [2025-02-08 08:18:19,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 258 transitions, 1919 flow