./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ec75f624fee0326f6dc01ebf4c0afe8f65e83cfa5c5726cd79e55765f7366f9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:45:17,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:45:17,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:45:17,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:45:17,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:45:17,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:45:17,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:45:17,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:45:17,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:45:17,786 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:45:17,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:45:17,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:45:17,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:45:17,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:45:17,786 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:45:17,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:45:17,787 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:45:17,788 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:45:17,788 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:45:17,788 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:45:17,788 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:45:17,788 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:45:17,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:45:17,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:45:17,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:45:17,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:45:17,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:45:17,789 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:45:17,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:45:17,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:45:17,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:45:17,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:45:17,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:45:17,789 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec75f624fee0326f6dc01ebf4c0afe8f65e83cfa5c5726cd79e55765f7366f9 [2025-02-06 12:45:18,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:45:18,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:45:18,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:45:18,021 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:45:18,022 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:45:18,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i [2025-02-06 12:45:19,179 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f314b8bd4/e55dc86a94b94571a6abb34e1f524fae/FLAG77be11e69 [2025-02-06 12:45:19,490 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:45:19,492 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i [2025-02-06 12:45:19,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f314b8bd4/e55dc86a94b94571a6abb34e1f524fae/FLAG77be11e69 [2025-02-06 12:45:19,758 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f314b8bd4/e55dc86a94b94571a6abb34e1f524fae [2025-02-06 12:45:19,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:45:19,762 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:45:19,763 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:45:19,763 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:45:19,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:45:19,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:45:19" (1/1) ... [2025-02-06 12:45:19,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ca250e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:19, skipping insertion in model container [2025-02-06 12:45:19,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:45:19" (1/1) ... [2025-02-06 12:45:19,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:45:20,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:45:20,075 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:45:20,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:45:20,146 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:45:20,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20 WrapperNode [2025-02-06 12:45:20,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:45:20,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:45:20,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:45:20,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:45:20,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,177 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2025-02-06 12:45:20,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:45:20,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:45:20,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:45:20,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:45:20,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,189 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,208 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 12:45:20,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,214 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:45:20,229 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:45:20,230 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:45:20,230 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:45:20,230 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (1/1) ... [2025-02-06 12:45:20,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:45:20,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:45:20,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:45:20,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:45:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:45:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:45:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:45:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:45:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:45:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:45:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:45:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:45:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 12:45:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 12:45:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:45:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:45:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:45:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:45:20,275 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:45:20,392 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:45:20,393 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:45:20,704 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:45:20,704 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:45:20,877 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:45:20,877 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:45:20,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:20 BoogieIcfgContainer [2025-02-06 12:45:20,877 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:45:20,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:45:20,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:45:20,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:45:20,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:45:19" (1/3) ... [2025-02-06 12:45:20,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a48259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:45:20, skipping insertion in model container [2025-02-06 12:45:20,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:20" (2/3) ... [2025-02-06 12:45:20,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a48259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:45:20, skipping insertion in model container [2025-02-06 12:45:20,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:20" (3/3) ... [2025-02-06 12:45:20,884 INFO L128 eAbstractionObserver]: Analyzing ICFG mix055_tso.oepc.i [2025-02-06 12:45:20,896 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:45:20,898 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix055_tso.oepc.i that has 5 procedures, 52 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-06 12:45:20,898 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:45:20,943 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:45:20,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2025-02-06 12:45:20,998 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2025-02-06 12:45:20,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:45:21,004 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 99 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. [2025-02-06 12:45:21,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2025-02-06 12:45:21,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2025-02-06 12:45:21,014 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:45:21,024 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;@7deaef19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:45:21,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 12:45:21,030 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:45:21,030 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-02-06 12:45:21,030 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:45:21,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:21,031 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 12:45:21,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:45:21,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash 109218468, now seen corresponding path program 1 times [2025-02-06 12:45:21,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:21,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212101223] [2025-02-06 12:45:21,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:21,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:21,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 12:45:21,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 12:45:21,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:21,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:21,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:21,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212101223] [2025-02-06 12:45:21,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212101223] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:21,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:21,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:45:21,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957738497] [2025-02-06 12:45:21,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:21,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:45:21,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:21,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:45:21,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:45:21,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-02-06 12:45:21,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:21,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:21,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-02-06 12:45:21,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:25,620 INFO L124 PetriNetUnfolderBase]: 43115/57400 cut-off events. [2025-02-06 12:45:25,620 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2025-02-06 12:45:25,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114516 conditions, 57400 events. 43115/57400 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 1718. Compared 348427 event pairs, 5325 based on Foata normal form. 2592/59937 useless extension candidates. Maximal degree in co-relation 114504. Up to 49011 conditions per place. [2025-02-06 12:45:26,101 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 61 selfloop transitions, 2 changer transitions 2/73 dead transitions. [2025-02-06 12:45:26,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 73 transitions, 294 flow [2025-02-06 12:45:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:45:26,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:45:26,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2025-02-06 12:45:26,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 12:45:26,116 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 106 transitions. [2025-02-06 12:45:26,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 73 transitions, 294 flow [2025-02-06 12:45:26,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 73 transitions, 288 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:45:26,127 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2025-02-06 12:45:26,129 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} [2025-02-06 12:45:26,133 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2025-02-06 12:45:26,133 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2025-02-06 12:45:26,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:26,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:26,134 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:26,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:45:26,134 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:45:26,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:26,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1012818242, now seen corresponding path program 1 times [2025-02-06 12:45:26,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:26,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395802482] [2025-02-06 12:45:26,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:26,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:26,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:45:26,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:45:26,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:26,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:26,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:26,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395802482] [2025-02-06 12:45:26,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395802482] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:26,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:26,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:45:26,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167723165] [2025-02-06 12:45:26,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:26,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:45:26,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:26,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:45:26,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:45:26,250 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-06 12:45:26,251 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) [2025-02-06 12:45:26,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:26,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-06 12:45:26,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:29,264 INFO L124 PetriNetUnfolderBase]: 38795/54697 cut-off events. [2025-02-06 12:45:29,265 INFO L125 PetriNetUnfolderBase]: For 2028/2028 co-relation queries the response was YES. [2025-02-06 12:45:29,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108223 conditions, 54697 events. 38795/54697 cut-off events. For 2028/2028 co-relation queries the response was YES. Maximal size of possible extension queue 1733. Compared 356786 event pairs, 38795 based on Foata normal form. 1296/55693 useless extension candidates. Maximal degree in co-relation 108213. Up to 50976 conditions per place. [2025-02-06 12:45:29,562 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 34 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2025-02-06 12:45:29,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 170 flow [2025-02-06 12:45:29,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:45:29,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:45:29,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-02-06 12:45:29,564 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44025157232704404 [2025-02-06 12:45:29,564 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 70 transitions. [2025-02-06 12:45:29,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 170 flow [2025-02-06 12:45:29,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:45:29,567 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2025-02-06 12:45:29,567 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} [2025-02-06 12:45:29,568 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2025-02-06 12:45:29,568 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2025-02-06 12:45:29,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:29,568 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:29,568 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:29,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:45:29,568 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:45:29,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:29,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1012818975, now seen corresponding path program 1 times [2025-02-06 12:45:29,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:29,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434648064] [2025-02-06 12:45:29,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:29,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:29,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:45:29,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:45:29,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:29,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:30,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:30,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434648064] [2025-02-06 12:45:30,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434648064] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:30,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:30,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:45:30,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101266929] [2025-02-06 12:45:30,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:30,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:45:30,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:30,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:45:30,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:45:30,097 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-06 12:45:30,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:30,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:30,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-06 12:45:30,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:35,420 INFO L124 PetriNetUnfolderBase]: 57716/78487 cut-off events. [2025-02-06 12:45:35,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:45:35,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155065 conditions, 78487 events. 57716/78487 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2464. Compared 495602 event pairs, 7595 based on Foata normal form. 0/77019 useless extension candidates. Maximal degree in co-relation 155059. Up to 44629 conditions per place. [2025-02-06 12:45:35,744 INFO L140 encePairwiseOnDemand]: 38/53 looper letters, 65 selfloop transitions, 13 changer transitions 143/227 dead transitions. [2025-02-06 12:45:35,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 227 transitions, 910 flow [2025-02-06 12:45:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 12:45:35,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 12:45:35,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 356 transitions. [2025-02-06 12:45:35,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.559748427672956 [2025-02-06 12:45:35,747 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 12 states and 356 transitions. [2025-02-06 12:45:35,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 227 transitions, 910 flow [2025-02-06 12:45:35,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 227 transitions, 909 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:45:35,752 INFO L231 Difference]: Finished difference. Result has 72 places, 52 transitions, 229 flow [2025-02-06 12:45:35,752 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=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=229, PETRI_PLACES=72, PETRI_TRANSITIONS=52} [2025-02-06 12:45:35,753 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 12 predicate places. [2025-02-06 12:45:35,753 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 52 transitions, 229 flow [2025-02-06 12:45:35,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:35,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:35,753 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:35,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:45:35,754 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:45:35,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2099284318, now seen corresponding path program 1 times [2025-02-06 12:45:35,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:35,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775106812] [2025-02-06 12:45:35,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:35,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:35,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:45:35,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:45:35,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:35,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:36,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:36,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775106812] [2025-02-06 12:45:36,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775106812] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:36,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:36,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:45:36,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036881823] [2025-02-06 12:45:36,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:36,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:45:36,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:36,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:45:36,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:45:36,113 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-06 12:45:36,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 52 transitions, 229 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:36,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:36,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-06 12:45:36,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:41,217 INFO L124 PetriNetUnfolderBase]: 46241/63819 cut-off events. [2025-02-06 12:45:41,218 INFO L125 PetriNetUnfolderBase]: For 111921/111928 co-relation queries the response was YES. [2025-02-06 12:45:41,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214554 conditions, 63819 events. 46241/63819 cut-off events. For 111921/111928 co-relation queries the response was YES. Maximal size of possible extension queue 1982. Compared 412553 event pairs, 11149 based on Foata normal form. 1405/65219 useless extension candidates. Maximal degree in co-relation 214538. Up to 49029 conditions per place. [2025-02-06 12:45:41,690 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 73 selfloop transitions, 4 changer transitions 91/174 dead transitions. [2025-02-06 12:45:41,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 174 transitions, 1157 flow [2025-02-06 12:45:41,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:45:41,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:45:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 206 transitions. [2025-02-06 12:45:41,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.555256064690027 [2025-02-06 12:45:41,692 INFO L175 Difference]: Start difference. First operand has 72 places, 52 transitions, 229 flow. Second operand 7 states and 206 transitions. [2025-02-06 12:45:41,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 174 transitions, 1157 flow [2025-02-06 12:45:44,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 174 transitions, 1075 flow, removed 41 selfloop flow, removed 5 redundant places. [2025-02-06 12:45:44,694 INFO L231 Difference]: Finished difference. Result has 69 places, 55 transitions, 262 flow [2025-02-06 12:45:44,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=262, PETRI_PLACES=69, PETRI_TRANSITIONS=55} [2025-02-06 12:45:44,695 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 9 predicate places. [2025-02-06 12:45:44,695 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 55 transitions, 262 flow [2025-02-06 12:45:44,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:44,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:44,695 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:44,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:45:44,696 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:45:44,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:44,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1167724132, now seen corresponding path program 1 times [2025-02-06 12:45:44,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:44,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919791404] [2025-02-06 12:45:44,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:44,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:44,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 12:45:44,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 12:45:44,793 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:44,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:45,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:45,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:45,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919791404] [2025-02-06 12:45:45,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919791404] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:45,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:45,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:45:45,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736980458] [2025-02-06 12:45:45,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:45,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:45:45,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:45,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:45:45,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:45:45,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-06 12:45:45,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 55 transitions, 262 flow. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:45,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:45,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-06 12:45:45,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:51,629 INFO L124 PetriNetUnfolderBase]: 56151/76693 cut-off events. [2025-02-06 12:45:51,629 INFO L125 PetriNetUnfolderBase]: For 117851/117858 co-relation queries the response was YES. [2025-02-06 12:45:51,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257995 conditions, 76693 events. 56151/76693 cut-off events. For 117851/117858 co-relation queries the response was YES. Maximal size of possible extension queue 2291. Compared 489217 event pairs, 9559 based on Foata normal form. 1351/78039 useless extension candidates. Maximal degree in co-relation 257977. Up to 49569 conditions per place. [2025-02-06 12:45:52,291 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 120 selfloop transitions, 24 changer transitions 130/280 dead transitions. [2025-02-06 12:45:52,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 280 transitions, 1868 flow [2025-02-06 12:45:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 12:45:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 12:45:52,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 326 transitions. [2025-02-06 12:45:52,293 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5591766723842195 [2025-02-06 12:45:52,293 INFO L175 Difference]: Start difference. First operand has 69 places, 55 transitions, 262 flow. Second operand 11 states and 326 transitions. [2025-02-06 12:45:52,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 280 transitions, 1868 flow