./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix027_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca8042a994ed433e8dc5deebabd166a79d030a0388291f832432b8dc85340f9d --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:02:19,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:02:19,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 01:02:19,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:02:19,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:02:19,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:02:19,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:02:19,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:02:19,823 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:02:19,823 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:02:19,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:02:19,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:02:19,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:02:19,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:02:19,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:02:19,824 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:02:19,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:02:19,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:02:19,825 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca8042a994ed433e8dc5deebabd166a79d030a0388291f832432b8dc85340f9d [2025-03-09 01:02:20,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:02:20,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:02:20,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:02:20,056 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:02:20,056 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:02:20,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix027_tso.i [2025-03-09 01:02:21,236 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc4c9666/1488155b545045d68e3b5022fd3c06cf/FLAGe1389be34 [2025-03-09 01:02:21,498 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:02:21,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix027_tso.i [2025-03-09 01:02:21,511 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc4c9666/1488155b545045d68e3b5022fd3c06cf/FLAGe1389be34 [2025-03-09 01:02:21,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc4c9666/1488155b545045d68e3b5022fd3c06cf [2025-03-09 01:02:21,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:02:21,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:02:21,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:02:21,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:02:21,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:02:21,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:02:21" (1/1) ... [2025-03-09 01:02:21,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e66dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:21, skipping insertion in model container [2025-03-09 01:02:21,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:02:21" (1/1) ... [2025-03-09 01:02:21,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:02:22,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:02:22,189 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:02:22,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:02:22,293 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:02:22,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22 WrapperNode [2025-03-09 01:02:22,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:02:22,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:02:22,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:02:22,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:02:22,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,336 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2025-03-09 01:02:22,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:02:22,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:02:22,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:02:22,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:02:22,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,357 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 01:02:22,358 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,371 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:02:22,382 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:02:22,382 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:02:22,382 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:02:22,383 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (1/1) ... [2025-03-09 01:02:22,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:02:22,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:02:22,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 01:02:22,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 01:02:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 01:02:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:02:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-09 01:02:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-09 01:02:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-09 01:02:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-09 01:02:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-09 01:02:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-09 01:02:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-09 01:02:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-09 01:02:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:02:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 01:02:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:02:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:02:22,435 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 01:02:22,557 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:02:22,558 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:02:22,831 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 01:02:22,831 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:02:23,028 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:02:23,028 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:02:23,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:02:23 BoogieIcfgContainer [2025-03-09 01:02:23,029 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:02:23,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:02:23,031 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:02:23,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:02:23,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:02:21" (1/3) ... [2025-03-09 01:02:23,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b25d354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:02:23, skipping insertion in model container [2025-03-09 01:02:23,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:02:22" (2/3) ... [2025-03-09 01:02:23,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b25d354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:02:23, skipping insertion in model container [2025-03-09 01:02:23,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:02:23" (3/3) ... [2025-03-09 01:02:23,037 INFO L128 eAbstractionObserver]: Analyzing ICFG mix027_tso.i [2025-03-09 01:02:23,047 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:02:23,048 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. [2025-03-09 01:02:23,048 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 01:02:23,095 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 01:02:23,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2025-03-09 01:02:23,145 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2025-03-09 01:02:23,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:02:23,150 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 5. Compared 103 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. [2025-03-09 01:02:23,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2025-03-09 01:02:23,154 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2025-03-09 01:02:23,160 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:02:23,173 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;@4dc15a53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:02:23,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-09 01:02:23,179 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 01:02:23,180 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-03-09 01:02:23,180 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:02:23,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:23,180 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 01:02:23,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:23,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash 260974975, now seen corresponding path program 1 times [2025-03-09 01:02:23,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:23,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724442024] [2025-03-09 01:02:23,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:02:23,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:23,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 01:02:23,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 01:02:23,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:02:23,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:23,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:23,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724442024] [2025-03-09 01:02:23,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724442024] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:23,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:23,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:02:23,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573676849] [2025-03-09 01:02:23,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:23,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:02:23,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:23,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:02:23,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:02:23,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-03-09 01:02:23,658 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) [2025-03-09 01:02:23,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:23,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-03-09 01:02:23,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:28,364 INFO L124 PetriNetUnfolderBase]: 50459/66907 cut-off events. [2025-03-09 01:02:28,364 INFO L125 PetriNetUnfolderBase]: For 243/243 co-relation queries the response was YES. [2025-03-09 01:02:28,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133527 conditions, 66907 events. 50459/66907 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 1937. Compared 408000 event pairs, 6249 based on Foata normal form. 2988/69839 useless extension candidates. Maximal degree in co-relation 133515. Up to 57231 conditions per place. [2025-03-09 01:02:28,709 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2025-03-09 01:02:28,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 75 transitions, 302 flow [2025-03-09 01:02:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:02:28,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:02:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2025-03-09 01:02:28,718 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-03-09 01:02:28,719 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 108 transitions. [2025-03-09 01:02:28,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 75 transitions, 302 flow [2025-03-09 01:02:28,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 296 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 01:02:28,726 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2025-03-09 01:02:28,728 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} [2025-03-09 01:02:28,730 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2025-03-09 01:02:28,731 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2025-03-09 01:02:28,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:28,731 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:28,731 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:02:28,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:02:28,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:28,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:28,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1624377667, now seen corresponding path program 1 times [2025-03-09 01:02:28,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:28,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187909293] [2025-03-09 01:02:28,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:02:28,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:28,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 01:02:28,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 01:02:28,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:02:28,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:28,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:28,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187909293] [2025-03-09 01:02:28,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187909293] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:28,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:28,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:02:28,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072386774] [2025-03-09 01:02:28,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:28,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:02:28,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:28,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:02:28,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:02:28,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-03-09 01:02:28,828 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) [2025-03-09 01:02:28,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:28,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-03-09 01:02:28,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:32,519 INFO L124 PetriNetUnfolderBase]: 45383/63239 cut-off events. [2025-03-09 01:02:32,519 INFO L125 PetriNetUnfolderBase]: For 2352/2352 co-relation queries the response was YES. [2025-03-09 01:02:32,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125621 conditions, 63239 events. 45383/63239 cut-off events. For 2352/2352 co-relation queries the response was YES. Maximal size of possible extension queue 1946. Compared 410207 event pairs, 45383 based on Foata normal form. 1512/64444 useless extension candidates. Maximal degree in co-relation 125611. Up to 59508 conditions per place. [2025-03-09 01:02:32,875 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2025-03-09 01:02:32,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2025-03-09 01:02:32,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:02:32,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:02:32,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-03-09 01:02:32,878 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2025-03-09 01:02:32,878 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2025-03-09 01:02:32,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2025-03-09 01:02:32,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:02:32,882 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2025-03-09 01:02:32,882 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} [2025-03-09 01:02:32,882 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2025-03-09 01:02:32,883 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2025-03-09 01:02:32,883 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) [2025-03-09 01:02:32,883 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:32,883 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:02:32,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:02:32,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:32,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:32,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1624377040, now seen corresponding path program 1 times [2025-03-09 01:02:32,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:32,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230238038] [2025-03-09 01:02:32,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:02:32,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:32,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 01:02:32,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 01:02:32,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:02:32,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:33,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:33,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:33,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230238038] [2025-03-09 01:02:33,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230238038] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:33,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:33,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:02:33,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858810647] [2025-03-09 01:02:33,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:33,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:02:33,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:33,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:02:33,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:02:33,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-03-09 01:02:33,441 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) [2025-03-09 01:02:33,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:33,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-03-09 01:02:33,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:39,316 INFO L124 PetriNetUnfolderBase]: 67868/92105 cut-off events. [2025-03-09 01:02:39,317 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:02:39,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181859 conditions, 92105 events. 67868/92105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2791. Compared 587805 event pairs, 8927 based on Foata normal form. 0/90382 useless extension candidates. Maximal degree in co-relation 181853. Up to 52705 conditions per place. [2025-03-09 01:02:39,828 INFO L140 encePairwiseOnDemand]: 38/54 looper letters, 66 selfloop transitions, 14 changer transitions 149/235 dead transitions. [2025-03-09 01:02:39,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 235 transitions, 942 flow [2025-03-09 01:02:39,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 01:02:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-09 01:02:39,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 364 transitions. [2025-03-09 01:02:39,831 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5617283950617284 [2025-03-09 01:02:39,831 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 12 states and 364 transitions. [2025-03-09 01:02:39,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 235 transitions, 942 flow [2025-03-09 01:02:39,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 235 transitions, 941 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 01:02:39,835 INFO L231 Difference]: Finished difference. Result has 73 places, 54 transitions, 244 flow [2025-03-09 01:02:39,836 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} [2025-03-09 01:02:39,836 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 12 predicate places. [2025-03-09 01:02:39,836 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 54 transitions, 244 flow [2025-03-09 01:02:39,837 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) [2025-03-09 01:02:39,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:39,837 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:02:39,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 01:02:39,837 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:39,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:39,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1135237231, now seen corresponding path program 1 times [2025-03-09 01:02:39,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:39,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031565371] [2025-03-09 01:02:39,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:02:39,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:39,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 01:02:39,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 01:02:39,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:02:39,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:40,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:40,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031565371] [2025-03-09 01:02:40,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031565371] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:40,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:40,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:02:40,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155895287] [2025-03-09 01:02:40,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:40,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:02:40,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:40,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:02:40,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:02:40,254 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-03-09 01:02:40,254 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) [2025-03-09 01:02:40,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:40,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-03-09 01:02:40,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:46,370 INFO L124 PetriNetUnfolderBase]: 51617/70319 cut-off events. [2025-03-09 01:02:46,370 INFO L125 PetriNetUnfolderBase]: For 111971/112049 co-relation queries the response was YES. [2025-03-09 01:02:46,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241190 conditions, 70319 events. 51617/70319 cut-off events. For 111971/112049 co-relation queries the response was YES. Maximal size of possible extension queue 2032. Compared 433741 event pairs, 9950 based on Foata normal form. 1656/71908 useless extension candidates. Maximal degree in co-relation 241174. Up to 39049 conditions per place. [2025-03-09 01:02:46,973 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 74 selfloop transitions, 12 changer transitions 118/210 dead transitions. [2025-03-09 01:02:46,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 210 transitions, 1363 flow [2025-03-09 01:02:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 01:02:46,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 01:02:46,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 295 transitions. [2025-03-09 01:02:46,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5462962962962963 [2025-03-09 01:02:46,975 INFO L175 Difference]: Start difference. First operand has 73 places, 54 transitions, 244 flow. Second operand 10 states and 295 transitions. [2025-03-09 01:02:46,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 210 transitions, 1363 flow [2025-03-09 01:02:52,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 210 transitions, 1257 flow, removed 53 selfloop flow, removed 5 redundant places. [2025-03-09 01:02:52,318 INFO L231 Difference]: Finished difference. Result has 77 places, 61 transitions, 355 flow [2025-03-09 01:02:52,319 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} [2025-03-09 01:02:52,320 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 16 predicate places. [2025-03-09 01:02:52,320 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 61 transitions, 355 flow [2025-03-09 01:02:52,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:52,320 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:52,320 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:02:52,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:02:52,321 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:52,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:52,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1703601788, now seen corresponding path program 1 times [2025-03-09 01:02:52,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:52,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505783097] [2025-03-09 01:02:52,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:02:52,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:52,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 01:02:52,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 01:02:52,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:02:52,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:52,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:52,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:52,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505783097] [2025-03-09 01:02:52,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505783097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:52,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:52,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:02:52,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477219092] [2025-03-09 01:02:52,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:52,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:02:52,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:52,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:02:52,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:02:52,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-03-09 01:02:52,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 61 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:52,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:52,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-03-09 01:02:52,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand