./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix055.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix055.opt.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 a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:08:54,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:08:54,188 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-17 14:08:54,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:08:54,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:08:54,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:08:54,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:08:54,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:08:54,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:08:54,220 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:08:54,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:08:54,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:08:54,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:08:54,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:08:54,221 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:08:54,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:08:54,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:08:54,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:08:54,222 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:08:54,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:08:54,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:08:54,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:08:54,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:08:54,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:08:54,222 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 -> a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 [2025-03-17 14:08:54,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:08:54,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:08:54,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:08:54,463 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:08:54,463 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:08:54,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix055.opt.i [2025-03-17 14:08:55,641 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0336fe1d/aba6acca90af497e947979ffd7e1f4b8/FLAGaea2850db [2025-03-17 14:08:55,934 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:08:55,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2025-03-17 14:08:55,949 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0336fe1d/aba6acca90af497e947979ffd7e1f4b8/FLAGaea2850db [2025-03-17 14:08:55,960 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0336fe1d/aba6acca90af497e947979ffd7e1f4b8 [2025-03-17 14:08:55,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:08:55,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:08:55,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:08:55,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:08:55,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:08:55,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:08:55" (1/1) ... [2025-03-17 14:08:55,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb9ad36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:55, skipping insertion in model container [2025-03-17 14:08:55,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:08:55" (1/1) ... [2025-03-17 14:08:56,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:08:56,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:08:56,266 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:08:56,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:08:56,336 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:08:56,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56 WrapperNode [2025-03-17 14:08:56,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:08:56,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:08:56,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:08:56,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:08:56,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,374 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2025-03-17 14:08:56,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:08:56,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:08:56,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:08:56,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:08:56,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,385 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,399 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 14:08:56,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,404 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:08:56,412 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:08:56,412 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:08:56,412 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:08:56,413 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (1/1) ... [2025-03-17 14:08:56,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:08:56,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:08:56,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 14:08:56,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 14:08:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-17 14:08:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 14:08:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-17 14:08:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-17 14:08:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-17 14:08:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-17 14:08:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-17 14:08:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-17 14:08:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-17 14:08:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-17 14:08:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 14:08:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-17 14:08:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:08:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:08:56,465 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 14:08:56,567 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:08:56,569 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:08:56,836 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 14:08:56,837 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:08:57,015 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:08:57,015 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:08:57,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:08:57 BoogieIcfgContainer [2025-03-17 14:08:57,016 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:08:57,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:08:57,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:08:57,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:08:57,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:08:55" (1/3) ... [2025-03-17 14:08:57,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1beb5e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:08:57, skipping insertion in model container [2025-03-17 14:08:57,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:08:56" (2/3) ... [2025-03-17 14:08:57,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1beb5e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:08:57, skipping insertion in model container [2025-03-17 14:08:57,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:08:57" (3/3) ... [2025-03-17 14:08:57,024 INFO L128 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2025-03-17 14:08:57,035 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:08:57,037 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix055.opt.i that has 5 procedures, 52 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-17 14:08:57,037 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 14:08:57,081 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 14:08:57,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2025-03-17 14:08:57,133 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2025-03-17 14:08:57,134 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 14:08:57,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2025-03-17 14:08:57,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2025-03-17 14:08:57,142 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2025-03-17 14:08:57,149 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:08:57,157 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;@57fd923c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:08:57,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-17 14:08:57,166 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 14:08:57,166 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-17 14:08:57,166 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 14:08:57,166 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:08:57,168 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:08:57,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-17 14:08:57,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:08:57,172 INFO L85 PathProgramCache]: Analyzing trace with hash -627834450, now seen corresponding path program 1 times [2025-03-17 14:08:57,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:08:57,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868623842] [2025-03-17 14:08:57,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:08:57,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:08:57,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 14:08:57,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 14:08:57,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:08:57,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:08:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:08:57,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:08:57,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868623842] [2025-03-17 14:08:57,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868623842] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:08:57,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:08:57,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:08:57,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677936175] [2025-03-17 14:08:57,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:08:57,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:08:57,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:08:57,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:08:57,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:08:57,607 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-03-17 14:08:57,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:08:57,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:08:57,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-03-17 14:08:57,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:01,197 INFO L124 PetriNetUnfolderBase]: 43115/57503 cut-off events. [2025-03-17 14:09:01,197 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2025-03-17 14:09:01,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114619 conditions, 57503 events. 43115/57503 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 1722. Compared 338394 event pairs, 6395 based on Foata normal form. 2592/60060 useless extension candidates. Maximal degree in co-relation 114607. Up to 47521 conditions per place. [2025-03-17 14:09:01,489 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 57 selfloop transitions, 2 changer transitions 2/69 dead transitions. [2025-03-17 14:09:01,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 69 transitions, 272 flow [2025-03-17 14:09:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:09:01,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:09:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-03-17 14:09:01,499 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6415094339622641 [2025-03-17 14:09:01,502 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 102 transitions. [2025-03-17 14:09:01,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 69 transitions, 272 flow [2025-03-17 14:09:01,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 69 transitions, 268 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 14:09:01,512 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2025-03-17 14:09:01,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2025-03-17 14:09:01,518 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2025-03-17 14:09:01,518 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2025-03-17 14:09:01,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:09:01,518 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:01,518 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:01,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:09:01,519 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-17 14:09:01,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:01,520 INFO L85 PathProgramCache]: Analyzing trace with hash 260334669, now seen corresponding path program 1 times [2025-03-17 14:09:01,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:01,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133038567] [2025-03-17 14:09:01,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:01,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:01,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 14:09:01,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 14:09:01,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:01,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:01,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:01,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:01,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133038567] [2025-03-17 14:09:01,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133038567] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:01,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:01,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:09:01,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301642015] [2025-03-17 14:09:01,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:01,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:09:01,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:01,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:09:01,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:09:01,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-17 14:09:01,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 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) [2025-03-17 14:09:01,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:01,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-17 14:09:01,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:04,609 INFO L124 PetriNetUnfolderBase]: 38795/54911 cut-off events. [2025-03-17 14:09:04,609 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2025-03-17 14:09:04,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108353 conditions, 54911 events. 38795/54911 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 1736. Compared 360383 event pairs, 38795 based on Foata normal form. 1296/56172 useless extension candidates. Maximal degree in co-relation 108343. Up to 50976 conditions per place. [2025-03-17 14:09:04,886 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 34 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2025-03-17 14:09:04,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 170 flow [2025-03-17 14:09:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:09:04,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:09:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-03-17 14:09:04,889 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44025157232704404 [2025-03-17 14:09:04,889 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 70 transitions. [2025-03-17 14:09:04,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 170 flow [2025-03-17 14:09:04,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:09:04,904 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2025-03-17 14:09:04,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-03-17 14:09:04,905 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2025-03-17 14:09:04,906 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2025-03-17 14:09:04,906 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) [2025-03-17 14:09:04,906 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:04,906 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:04,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:09:04,906 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-17 14:09:04,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:04,907 INFO L85 PathProgramCache]: Analyzing trace with hash 260335212, now seen corresponding path program 1 times [2025-03-17 14:09:04,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:04,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881817822] [2025-03-17 14:09:04,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:04,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:04,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 14:09:04,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 14:09:04,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:04,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:05,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:05,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881817822] [2025-03-17 14:09:05,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881817822] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:05,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:05,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:09:05,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763904377] [2025-03-17 14:09:05,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:05,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:09:05,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:05,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:09:05,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:09:05,193 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-17 14:09:05,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:09:05,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:05,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-17 14:09:05,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:08,412 INFO L124 PetriNetUnfolderBase]: 49475/67713 cut-off events. [2025-03-17 14:09:08,412 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 14:09:08,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133491 conditions, 67713 events. 49475/67713 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2115. Compared 435884 event pairs, 10351 based on Foata normal form. 0/66485 useless extension candidates. Maximal degree in co-relation 133485. Up to 43215 conditions per place. [2025-03-17 14:09:08,733 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 55 selfloop transitions, 3 changer transitions 92/156 dead transitions. [2025-03-17 14:09:08,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 156 transitions, 628 flow [2025-03-17 14:09:08,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:09:08,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:09:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2025-03-17 14:09:08,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5660377358490566 [2025-03-17 14:09:08,735 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 8 states and 240 transitions. [2025-03-17 14:09:08,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 156 transitions, 628 flow [2025-03-17 14:09:08,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 156 transitions, 627 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 14:09:08,740 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 126 flow [2025-03-17 14:09:08,740 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=126, PETRI_PLACES=64, PETRI_TRANSITIONS=43} [2025-03-17 14:09:08,741 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2025-03-17 14:09:08,741 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 126 flow [2025-03-17 14:09:08,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:09:08,742 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:08,742 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:08,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 14:09:08,742 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-17 14:09:08,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:08,743 INFO L85 PathProgramCache]: Analyzing trace with hash 246715883, now seen corresponding path program 1 times [2025-03-17 14:09:08,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:08,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993052320] [2025-03-17 14:09:08,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:08,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:08,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 14:09:08,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 14:09:08,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:08,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:09,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:09,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993052320] [2025-03-17 14:09:09,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993052320] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:09,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:09,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:09:09,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418002485] [2025-03-17 14:09:09,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:09,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:09:09,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:09,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:09:09,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:09:09,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-17 14:09:09,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 126 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) [2025-03-17 14:09:09,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:09,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-17 14:09:09,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:12,152 INFO L124 PetriNetUnfolderBase]: 39895/55165 cut-off events. [2025-03-17 14:09:12,152 INFO L125 PetriNetUnfolderBase]: For 25286/25289 co-relation queries the response was YES. [2025-03-17 14:09:12,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127901 conditions, 55165 events. 39895/55165 cut-off events. For 25286/25289 co-relation queries the response was YES. Maximal size of possible extension queue 1761. Compared 346971 event pairs, 9007 based on Foata normal form. 1224/56374 useless extension candidates. Maximal degree in co-relation 127889. Up to 41665 conditions per place. [2025-03-17 14:09:12,441 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 55 selfloop transitions, 3 changer transitions 69/133 dead transitions. [2025-03-17 14:09:12,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 133 transitions, 638 flow [2025-03-17 14:09:12,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:09:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 14:09:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2025-03-17 14:09:12,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5444743935309974 [2025-03-17 14:09:12,443 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 126 flow. Second operand 7 states and 202 transitions. [2025-03-17 14:09:12,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 133 transitions, 638 flow [2025-03-17 14:09:13,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 133 transitions, 625 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-03-17 14:09:13,364 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 154 flow [2025-03-17 14:09:13,364 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=154, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2025-03-17 14:09:13,365 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 6 predicate places. [2025-03-17 14:09:13,365 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 154 flow [2025-03-17 14:09:13,365 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) [2025-03-17 14:09:13,365 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:13,366 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:13,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 14:09:13,366 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-17 14:09:13,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:13,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1080884855, now seen corresponding path program 1 times [2025-03-17 14:09:13,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:13,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882681563] [2025-03-17 14:09:13,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:13,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:13,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 14:09:13,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 14:09:13,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:13,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:14,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:14,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882681563] [2025-03-17 14:09:14,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882681563] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:14,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:14,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:09:14,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440975262] [2025-03-17 14:09:14,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:14,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:09:14,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:14,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:09:14,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:09:14,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-17 14:09:14,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 154 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) [2025-03-17 14:09:14,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:14,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-17 14:09:14,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:17,517 INFO L124 PetriNetUnfolderBase]: 37259/51441 cut-off events. [2025-03-17 14:09:17,517 INFO L125 PetriNetUnfolderBase]: For 49198/49243 co-relation queries the response was YES. [2025-03-17 14:09:17,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131939 conditions, 51441 events. 37259/51441 cut-off events. For 49198/49243 co-relation queries the response was YES. Maximal size of possible extension queue 1562. Compared 315136 event pairs, 8599 based on Foata normal form. 1056/52482 useless extension candidates. Maximal degree in co-relation 131923. Up to 36913 conditions per place. [2025-03-17 14:09:17,875 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 73 selfloop transitions, 5 changer transitions 69/153 dead transitions. [2025-03-17 14:09:17,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 153 transitions, 792 flow [2025-03-17 14:09:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:09:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:09:17,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 231 transitions. [2025-03-17 14:09:17,878 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5448113207547169 [2025-03-17 14:09:17,878 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 154 flow. Second operand 8 states and 231 transitions. [2025-03-17 14:09:17,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 153 transitions, 792 flow [2025-03-17 14:09:18,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 153 transitions, 781 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-03-17 14:09:18,479 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 192 flow [2025-03-17 14:09:18,480 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=192, PETRI_PLACES=71, PETRI_TRANSITIONS=47} [2025-03-17 14:09:18,480 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 11 predicate places. [2025-03-17 14:09:18,480 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 192 flow [2025-03-17 14:09:18,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2025-03-17 14:09:18,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:18,481 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:18,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 14:09:18,481 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-17 14:09:18,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2109979811, now seen corresponding path program 1 times [2025-03-17 14:09:18,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:18,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47954943] [2025-03-17 14:09:18,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:09:18,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:18,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 14:09:18,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 14:09:18,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:09:18,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:19,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:19,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47954943] [2025-03-17 14:09:19,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47954943] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:19,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:19,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:09:19,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641406477] [2025-03-17 14:09:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:19,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:09:19,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:19,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:09:19,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:09:19,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-17 14:09:19,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 47 transitions, 192 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:09:19,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:19,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-17 14:09:19,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:25,170 INFO L124 PetriNetUnfolderBase]: 60149/80775 cut-off events. [2025-03-17 14:09:25,170 INFO L125 PetriNetUnfolderBase]: For 141089/141104 co-relation queries the response was YES. [2025-03-17 14:09:25,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228664 conditions, 80775 events. 60149/80775 cut-off events. For 141089/141104 co-relation queries the response was YES. Maximal size of possible extension queue 2339. Compared 491460 event pairs, 3438 based on Foata normal form. 1664/82431 useless extension candidates. Maximal degree in co-relation 228644. Up to 38351 conditions per place. [2025-03-17 14:09:25,765 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 100 selfloop transitions, 22 changer transitions 138/266 dead transitions. [2025-03-17 14:09:25,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 266 transitions, 1537 flow [2025-03-17 14:09:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 14:09:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-17 14:09:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 393 transitions. [2025-03-17 14:09:25,767 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5703918722786647 [2025-03-17 14:09:25,767 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 192 flow. Second operand 13 states and 393 transitions. [2025-03-17 14:09:25,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 266 transitions, 1537 flow [2025-03-17 14:09:27,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 266 transitions, 1489 flow, removed 18 selfloop flow, removed 4 redundant places. [2025-03-17 14:09:27,954 INFO L231 Difference]: Finished difference. Result has 87 places, 66 transitions, 447 flow [2025-03-17 14:09:27,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=447, PETRI_PLACES=87, PETRI_TRANSITIONS=66} [2025-03-17 14:09:27,955 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 27 predicate places. [2025-03-17 14:09:27,955 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 66 transitions, 447 flow [2025-03-17 14:09:27,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:09:27,955 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:09:27,955 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:09:27,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 14:09:27,955 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-17 14:09:27,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:09:27,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1876286971, now seen corresponding path program 2 times [2025-03-17 14:09:27,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:09:27,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042077778] [2025-03-17 14:09:27,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:09:27,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:09:27,963 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 1 equivalence classes. [2025-03-17 14:09:27,975 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 14:09:27,975 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:09:27,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:09:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:09:28,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:09:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042077778] [2025-03-17 14:09:28,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042077778] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:09:28,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:09:28,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:09:28,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406875904] [2025-03-17 14:09:28,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:09:28,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:09:28,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:09:28,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:09:28,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:09:28,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-17 14:09:28,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 66 transitions, 447 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:09:28,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:09:28,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-17 14:09:28,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:09:34,105 INFO L124 PetriNetUnfolderBase]: 55815/77229 cut-off events. [2025-03-17 14:09:34,105 INFO L125 PetriNetUnfolderBase]: For 348829/348860 co-relation queries the response was YES. [2025-03-17 14:09:34,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286147 conditions, 77229 events. 55815/77229 cut-off events. For 348829/348860 co-relation queries the response was YES. Maximal size of possible extension queue 2035. Compared 489826 event pairs, 10390 based on Foata normal form. 1334/78548 useless extension candidates. Maximal degree in co-relation 286117. Up to 55603 conditions per place. [2025-03-17 14:09:34,807 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 92 selfloop transitions, 12 changer transitions 109/219 dead transitions. [2025-03-17 14:09:34,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 219 transitions, 1889 flow [2025-03-17 14:09:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 14:09:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 14:09:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 274 transitions. [2025-03-17 14:09:34,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5169811320754717 [2025-03-17 14:09:34,809 INFO L175 Difference]: Start difference. First operand has 87 places, 66 transitions, 447 flow. Second operand 10 states and 274 transitions. [2025-03-17 14:09:34,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 219 transitions, 1889 flow