./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.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 eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:03:22,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:03:22,204 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 01:03:22,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:03:22,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:03:22,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:03:22,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:03:22,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:03:22,228 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:03:22,228 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:03:22,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:03:22,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:03:22,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:03:22,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:03:22,229 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:03:22,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:03:22,229 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:03:22,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:03:22,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:03:22,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:03:22,229 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:03:22,230 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:03:22,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:03:22,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:03:22,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:03:22,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:03:22,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:03:22,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:03:22,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:03:22,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:03:22,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:03:22,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:03:22,231 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 -> eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 [2025-03-09 01:03:22,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:03:22,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:03:22,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:03:22,539 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:03:22,540 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:03:22,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2025-03-09 01:03:23,772 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea6bc919d/4508f5df187d42f4a74eeef730fdb794/FLAG0d3f571b1 [2025-03-09 01:03:24,029 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:03:24,030 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2025-03-09 01:03:24,045 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea6bc919d/4508f5df187d42f4a74eeef730fdb794/FLAG0d3f571b1 [2025-03-09 01:03:24,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea6bc919d/4508f5df187d42f4a74eeef730fdb794 [2025-03-09 01:03:24,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:03:24,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:03:24,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:03:24,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:03:24,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:03:24,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c19fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24, skipping insertion in model container [2025-03-09 01:03:24,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:03:24,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:03:24,646 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:03:24,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:03:24,752 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:03:24,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24 WrapperNode [2025-03-09 01:03:24,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:03:24,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:03:24,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:03:24,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:03:24,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,802 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 140 [2025-03-09 01:03:24,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:03:24,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:03:24,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:03:24,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:03:24,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,824 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,847 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 01:03:24,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,852 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:03:24,858 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:03:24,858 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:03:24,858 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:03:24,859 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (1/1) ... [2025-03-09 01:03:24,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:03:24,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:03:24,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 01:03:24,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 01:03:24,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 01:03:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:03:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-09 01:03:24,910 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-09 01:03:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-09 01:03:24,910 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-09 01:03:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-09 01:03:24,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-09 01:03:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-09 01:03:24,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-09 01:03:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:03:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 01:03:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:03:24,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:03:24,912 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 01:03:25,015 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:03:25,016 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:03:25,278 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 01:03:25,278 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:03:25,461 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:03:25,461 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:03:25,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:03:25 BoogieIcfgContainer [2025-03-09 01:03:25,462 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:03:25,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:03:25,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:03:25,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:03:25,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:03:24" (1/3) ... [2025-03-09 01:03:25,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7766ce3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:03:25, skipping insertion in model container [2025-03-09 01:03:25,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:03:24" (2/3) ... [2025-03-09 01:03:25,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7766ce3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:03:25, skipping insertion in model container [2025-03-09 01:03:25,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:03:25" (3/3) ... [2025-03-09 01:03:25,471 INFO L128 eAbstractionObserver]: Analyzing ICFG mix036_pso.opt_tso.opt.i [2025-03-09 01:03:25,485 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:03:25,486 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix036_pso.opt_tso.opt.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-09 01:03:25,486 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 01:03:25,538 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 01:03:25,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2025-03-09 01:03:25,594 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2025-03-09 01:03:25,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:03:25,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2025-03-09 01:03:25,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2025-03-09 01:03:25,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2025-03-09 01:03:25,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:03:25,625 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;@2f2daa84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:03:25,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-09 01:03:25,637 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 01:03:25,639 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-09 01:03:25,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:03:25,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:03:25,640 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:03:25,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:03:25,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:03:25,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1212614405, now seen corresponding path program 1 times [2025-03-09 01:03:25,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:03:25,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99136898] [2025-03-09 01:03:25,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:03:25,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:03:25,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 01:03:25,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 01:03:25,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:03:25,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:03:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:03:26,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:03:26,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99136898] [2025-03-09 01:03:26,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99136898] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:03:26,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:03:26,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:03:26,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476651854] [2025-03-09 01:03:26,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:03:26,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:03:26,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:03:26,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:03:26,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:03:26,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:03:26,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 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) [2025-03-09 01:03:26,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:03:26,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:03:26,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:03:31,101 INFO L124 PetriNetUnfolderBase]: 57803/76511 cut-off events. [2025-03-09 01:03:31,101 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2025-03-09 01:03:31,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152635 conditions, 76511 events. 57803/76511 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 2139. Compared 452657 event pairs, 6395 based on Foata normal form. 3456/79906 useless extension candidates. Maximal degree in co-relation 152623. Up to 66529 conditions per place. [2025-03-09 01:03:31,602 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 59 selfloop transitions, 2 changer transitions 2/71 dead transitions. [2025-03-09 01:03:31,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 280 flow [2025-03-09 01:03:31,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:03:31,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:03:31,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2025-03-09 01:03:31,614 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2025-03-09 01:03:31,616 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 104 transitions. [2025-03-09 01:03:31,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 280 flow [2025-03-09 01:03:31,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 71 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 01:03:31,625 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2025-03-09 01:03:31,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2025-03-09 01:03:31,631 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2025-03-09 01:03:31,632 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2025-03-09 01:03:31,632 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) [2025-03-09 01:03:31,632 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:03:31,633 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:03:31,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:03:31,633 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:03:31,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:03:31,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1646376964, now seen corresponding path program 1 times [2025-03-09 01:03:31,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:03:31,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178253840] [2025-03-09 01:03:31,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:03:31,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:03:31,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 01:03:31,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 01:03:31,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:03:31,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:03:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:03:31,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:03:31,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178253840] [2025-03-09 01:03:31,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178253840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:03:31,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:03:31,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:03:31,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337370953] [2025-03-09 01:03:31,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:03:31,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:03:31,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:03:31,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:03:31,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:03:31,720 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-03-09 01:03:31,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:31,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:03:31,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-03-09 01:03:31,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:03:35,353 INFO L124 PetriNetUnfolderBase]: 51971/71759 cut-off events. [2025-03-09 01:03:35,356 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2025-03-09 01:03:35,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142265 conditions, 71759 events. 51971/71759 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 2152. Compared 462387 event pairs, 51971 based on Foata normal form. 1728/73210 useless extension candidates. Maximal degree in co-relation 142255. Up to 68040 conditions per place. [2025-03-09 01:03:35,850 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 36 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2025-03-09 01:03:35,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 178 flow [2025-03-09 01:03:35,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:03:35,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:03:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-03-09 01:03:35,852 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43636363636363634 [2025-03-09 01:03:35,852 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 72 transitions. [2025-03-09 01:03:35,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 178 flow [2025-03-09 01:03:35,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:03:35,868 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2025-03-09 01:03:35,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2025-03-09 01:03:35,868 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2025-03-09 01:03:35,868 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2025-03-09 01:03:35,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:35,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:03:35,869 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:03:35,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:03:35,869 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:03:35,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:03:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1646377632, now seen corresponding path program 1 times [2025-03-09 01:03:35,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:03:35,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592717921] [2025-03-09 01:03:35,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:03:35,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:03:35,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 01:03:35,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 01:03:35,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:03:35,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:03:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:03:36,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:03:36,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592717921] [2025-03-09 01:03:36,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592717921] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:03:36,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:03:36,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:03:36,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136276069] [2025-03-09 01:03:36,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:03:36,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:03:36,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:03:36,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:03:36,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:03:36,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-03-09 01:03:36,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 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) [2025-03-09 01:03:36,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:03:36,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-03-09 01:03:36,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:03:41,139 INFO L124 PetriNetUnfolderBase]: 67379/91959 cut-off events. [2025-03-09 01:03:41,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:03:41,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181017 conditions, 91959 events. 67379/91959 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2712. Compared 596353 event pairs, 32615 based on Foata normal form. 0/90239 useless extension candidates. Maximal degree in co-relation 181011. Up to 59701 conditions per place. [2025-03-09 01:03:41,637 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 51 selfloop transitions, 5 changer transitions 90/152 dead transitions. [2025-03-09 01:03:41,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 152 transitions, 612 flow [2025-03-09 01:03:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 01:03:41,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 01:03:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 236 transitions. [2025-03-09 01:03:41,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5363636363636364 [2025-03-09 01:03:41,639 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 8 states and 236 transitions. [2025-03-09 01:03:41,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 152 transitions, 612 flow [2025-03-09 01:03:41,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 152 transitions, 611 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 01:03:41,646 INFO L231 Difference]: Finished difference. Result has 66 places, 47 transitions, 152 flow [2025-03-09 01:03:41,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=152, PETRI_PLACES=66, PETRI_TRANSITIONS=47} [2025-03-09 01:03:41,647 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2025-03-09 01:03:41,647 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 47 transitions, 152 flow [2025-03-09 01:03:41,647 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) [2025-03-09 01:03:41,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:03:41,647 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:03:41,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 01:03:41,648 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:03:41,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:03:41,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1920624529, now seen corresponding path program 1 times [2025-03-09 01:03:41,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:03:41,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283507925] [2025-03-09 01:03:41,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:03:41,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:03:41,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 01:03:41,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 01:03:41,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:03:41,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:03:41,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:03:41,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:03:41,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283507925] [2025-03-09 01:03:41,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283507925] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:03:41,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:03:41,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:03:41,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351359515] [2025-03-09 01:03:41,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:03:41,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:03:41,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:03:41,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:03:41,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:03:41,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-03-09 01:03:41,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 47 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:41,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:03:41,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-03-09 01:03:41,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:03:45,974 INFO L124 PetriNetUnfolderBase]: 49463/67387 cut-off events. [2025-03-09 01:03:45,974 INFO L125 PetriNetUnfolderBase]: For 49150/49150 co-relation queries the response was YES. [2025-03-09 01:03:46,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169843 conditions, 67387 events. 49463/67387 cut-off events. For 49150/49150 co-relation queries the response was YES. Maximal size of possible extension queue 1881. Compared 413428 event pairs, 12727 based on Foata normal form. 1664/69006 useless extension candidates. Maximal degree in co-relation 169831. Up to 37153 conditions per place. [2025-03-09 01:03:46,443 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 57 selfloop transitions, 3 changer transitions 77/143 dead transitions. [2025-03-09 01:03:46,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 143 transitions, 730 flow [2025-03-09 01:03:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:03:46,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:03:46,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 212 transitions. [2025-03-09 01:03:46,445 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5506493506493506 [2025-03-09 01:03:46,445 INFO L175 Difference]: Start difference. First operand has 66 places, 47 transitions, 152 flow. Second operand 7 states and 212 transitions. [2025-03-09 01:03:46,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 143 transitions, 730 flow [2025-03-09 01:03:47,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 143 transitions, 717 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-03-09 01:03:47,481 INFO L231 Difference]: Finished difference. Result has 68 places, 47 transitions, 162 flow [2025-03-09 01:03:47,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=162, PETRI_PLACES=68, PETRI_TRANSITIONS=47} [2025-03-09 01:03:47,481 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 6 predicate places. [2025-03-09 01:03:47,481 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 47 transitions, 162 flow [2025-03-09 01:03:47,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:47,482 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:03:47,482 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] [2025-03-09 01:03:47,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:03:47,482 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:03:47,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:03:47,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2127311561, now seen corresponding path program 1 times [2025-03-09 01:03:47,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:03:47,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190829133] [2025-03-09 01:03:47,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:03:47,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:03:47,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 01:03:47,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 01:03:47,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:03:47,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:03:47,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:03:47,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:03:47,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190829133] [2025-03-09 01:03:47,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190829133] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:03:47,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:03:47,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:03:47,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005175934] [2025-03-09 01:03:47,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:03:47,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:03:47,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:03:47,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:03:47,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:03:47,622 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:03:47,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 47 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:47,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:03:47,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:03:47,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:03:50,856 INFO L124 PetriNetUnfolderBase]: 36911/51115 cut-off events. [2025-03-09 01:03:50,857 INFO L125 PetriNetUnfolderBase]: For 45342/45342 co-relation queries the response was YES. [2025-03-09 01:03:51,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130497 conditions, 51115 events. 36911/51115 cut-off events. For 45342/45342 co-relation queries the response was YES. Maximal size of possible extension queue 1397. Compared 319584 event pairs, 4643 based on Foata normal form. 1728/52808 useless extension candidates. Maximal degree in co-relation 130481. Up to 27973 conditions per place. [2025-03-09 01:03:51,208 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 82 selfloop transitions, 6 changer transitions 1/95 dead transitions. [2025-03-09 01:03:51,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 95 transitions, 496 flow [2025-03-09 01:03:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:03:51,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:03:51,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2025-03-09 01:03:51,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2025-03-09 01:03:51,209 INFO L175 Difference]: Start difference. First operand has 68 places, 47 transitions, 162 flow. Second operand 4 states and 135 transitions. [2025-03-09 01:03:51,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 95 transitions, 496 flow [2025-03-09 01:03:51,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 95 transitions, 478 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-03-09 01:03:51,687 INFO L231 Difference]: Finished difference. Result has 63 places, 51 transitions, 190 flow [2025-03-09 01:03:51,687 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2025-03-09 01:03:51,688 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2025-03-09 01:03:51,688 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 190 flow [2025-03-09 01:03:51,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:51,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:03:51,688 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:03:51,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 01:03:51,690 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:03:51,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:03:51,690 INFO L85 PathProgramCache]: Analyzing trace with hash -447637865, now seen corresponding path program 1 times [2025-03-09 01:03:51,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:03:51,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569130660] [2025-03-09 01:03:51,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:03:51,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:03:51,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 01:03:51,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 01:03:51,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:03:51,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:03:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:03:51,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:03:51,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569130660] [2025-03-09 01:03:51,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569130660] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:03:51,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:03:51,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:03:51,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48139070] [2025-03-09 01:03:51,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:03:51,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:03:51,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:03:51,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:03:51,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:03:51,856 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:03:51,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:51,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:03:51,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:03:51,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:03:53,936 INFO L124 PetriNetUnfolderBase]: 24319/33947 cut-off events. [2025-03-09 01:03:53,936 INFO L125 PetriNetUnfolderBase]: For 30108/30108 co-relation queries the response was YES. [2025-03-09 01:03:54,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92167 conditions, 33947 events. 24319/33947 cut-off events. For 30108/30108 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 201021 event pairs, 2675 based on Foata normal form. 1344/35256 useless extension candidates. Maximal degree in co-relation 92153. Up to 12853 conditions per place. [2025-03-09 01:03:54,118 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 105 selfloop transitions, 10 changer transitions 1/122 dead transitions. [2025-03-09 01:03:54,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 122 transitions, 668 flow [2025-03-09 01:03:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 01:03:54,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 01:03:54,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2025-03-09 01:03:54,119 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6327272727272727 [2025-03-09 01:03:54,119 INFO L175 Difference]: Start difference. First operand has 63 places, 51 transitions, 190 flow. Second operand 5 states and 174 transitions. [2025-03-09 01:03:54,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 122 transitions, 668 flow [2025-03-09 01:03:54,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 122 transitions, 657 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-09 01:03:54,127 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 242 flow [2025-03-09 01:03:54,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=242, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2025-03-09 01:03:54,128 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2025-03-09 01:03:54,128 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 242 flow [2025-03-09 01:03:54,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:54,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:03:54,128 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:03:54,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 01:03:54,128 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:03:54,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:03:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1321854457, now seen corresponding path program 1 times [2025-03-09 01:03:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:03:54,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909206055] [2025-03-09 01:03:54,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:03:54,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:03:54,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-09 01:03:54,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-09 01:03:54,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:03:54,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:03:54,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:03:54,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:03:54,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909206055] [2025-03-09 01:03:54,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909206055] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:03:54,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:03:54,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-09 01:03:54,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303020011] [2025-03-09 01:03:54,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:03:54,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 01:03:54,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:03:54,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 01:03:54,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-09 01:03:54,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-03-09 01:03:54,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 242 flow. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:54,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:03:54,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-03-09 01:03:54,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:03:57,801 INFO L124 PetriNetUnfolderBase]: 31483/43570 cut-off events. [2025-03-09 01:03:57,802 INFO L125 PetriNetUnfolderBase]: For 52035/52035 co-relation queries the response was YES. [2025-03-09 01:03:57,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127122 conditions, 43570 events. 31483/43570 cut-off events. For 52035/52035 co-relation queries the response was YES. Maximal size of possible extension queue 1010. Compared 258649 event pairs, 5747 based on Foata normal form. 368/43927 useless extension candidates. Maximal degree in co-relation 127106. Up to 24769 conditions per place. [2025-03-09 01:03:58,017 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 105 selfloop transitions, 13 changer transitions 103/227 dead transitions. [2025-03-09 01:03:58,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 227 transitions, 1465 flow [2025-03-09 01:03:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 01:03:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 01:03:58,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 297 transitions. [2025-03-09 01:03:58,018 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.54 [2025-03-09 01:03:58,018 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 242 flow. Second operand 10 states and 297 transitions. [2025-03-09 01:03:58,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 227 transitions, 1465 flow [2025-03-09 01:03:58,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 227 transitions, 1351 flow, removed 22 selfloop flow, removed 4 redundant places. [2025-03-09 01:03:58,136 INFO L231 Difference]: Finished difference. Result has 78 places, 66 transitions, 320 flow [2025-03-09 01:03:58,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=320, PETRI_PLACES=78, PETRI_TRANSITIONS=66} [2025-03-09 01:03:58,138 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 16 predicate places. [2025-03-09 01:03:58,138 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 66 transitions, 320 flow [2025-03-09 01:03:58,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:58,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:03:58,138 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:03:58,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 01:03:58,138 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:03:58,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:03:58,138 INFO L85 PathProgramCache]: Analyzing trace with hash -44007221, now seen corresponding path program 2 times [2025-03-09 01:03:58,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:03:58,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013450784] [2025-03-09 01:03:58,139 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:03:58,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:03:58,147 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 1 equivalence classes. [2025-03-09 01:03:58,167 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-09 01:03:58,169 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:03:58,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:03:58,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:03:58,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:03:58,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013450784] [2025-03-09 01:03:58,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013450784] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:03:58,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:03:58,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:03:58,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447034417] [2025-03-09 01:03:58,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:03:58,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:03:58,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:03:58,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:03:58,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:03:58,286 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:03:58,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 66 transitions, 320 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:58,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:03:58,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:03:58,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:03:59,506 INFO L124 PetriNetUnfolderBase]: 15935/22123 cut-off events. [2025-03-09 01:03:59,507 INFO L125 PetriNetUnfolderBase]: For 30408/30408 co-relation queries the response was YES. [2025-03-09 01:03:59,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66658 conditions, 22123 events. 15935/22123 cut-off events. For 30408/30408 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 122201 event pairs, 2367 based on Foata normal form. 664/22752 useless extension candidates. Maximal degree in co-relation 66637. Up to 6740 conditions per place. [2025-03-09 01:03:59,645 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 146 selfloop transitions, 14 changer transitions 1/167 dead transitions. [2025-03-09 01:03:59,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 167 transitions, 1097 flow [2025-03-09 01:03:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:03:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 01:03:59,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2025-03-09 01:03:59,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6393939393939394 [2025-03-09 01:03:59,646 INFO L175 Difference]: Start difference. First operand has 78 places, 66 transitions, 320 flow. Second operand 6 states and 211 transitions. [2025-03-09 01:03:59,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 167 transitions, 1097 flow [2025-03-09 01:03:59,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 167 transitions, 1091 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-03-09 01:03:59,663 INFO L231 Difference]: Finished difference. Result has 77 places, 68 transitions, 381 flow [2025-03-09 01:03:59,663 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=381, PETRI_PLACES=77, PETRI_TRANSITIONS=68} [2025-03-09 01:03:59,664 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2025-03-09 01:03:59,664 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 381 flow [2025-03-09 01:03:59,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:03:59,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:03:59,664 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:03:59,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 01:03:59,664 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:03:59,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:03:59,664 INFO L85 PathProgramCache]: Analyzing trace with hash 729809867, now seen corresponding path program 1 times [2025-03-09 01:03:59,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:03:59,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323137476] [2025-03-09 01:03:59,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:03:59,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:03:59,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-09 01:03:59,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-09 01:03:59,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:03:59,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:03:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:03:59,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:03:59,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323137476] [2025-03-09 01:03:59,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323137476] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:03:59,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:03:59,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 01:03:59,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191083245] [2025-03-09 01:03:59,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:03:59,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:03:59,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:03:59,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:03:59,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:03:59,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-03-09 01:03:59,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2025-03-09 01:03:59,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:03:59,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-03-09 01:03:59,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:04:01,167 INFO L124 PetriNetUnfolderBase]: 18179/25258 cut-off events. [2025-03-09 01:04:01,168 INFO L125 PetriNetUnfolderBase]: For 40453/40453 co-relation queries the response was YES. [2025-03-09 01:04:01,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80620 conditions, 25258 events. 18179/25258 cut-off events. For 40453/40453 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 137033 event pairs, 6219 based on Foata normal form. 104/25351 useless extension candidates. Maximal degree in co-relation 80598. Up to 17050 conditions per place. [2025-03-09 01:04:01,368 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 105 selfloop transitions, 3 changer transitions 57/171 dead transitions. [2025-03-09 01:04:01,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 171 transitions, 1257 flow [2025-03-09 01:04:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:04:01,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 01:04:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 187 transitions. [2025-03-09 01:04:01,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2025-03-09 01:04:01,369 INFO L175 Difference]: Start difference. First operand has 77 places, 68 transitions, 381 flow. Second operand 6 states and 187 transitions. [2025-03-09 01:04:01,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 171 transitions, 1257 flow [2025-03-09 01:04:01,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 171 transitions, 1141 flow, removed 25 selfloop flow, removed 5 redundant places. [2025-03-09 01:04:01,585 INFO L231 Difference]: Finished difference. Result has 81 places, 69 transitions, 362 flow [2025-03-09 01:04:01,585 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=81, PETRI_TRANSITIONS=69} [2025-03-09 01:04:01,586 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 19 predicate places. [2025-03-09 01:04:01,586 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 69 transitions, 362 flow [2025-03-09 01:04:01,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2025-03-09 01:04:01,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:04:01,586 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:04:01,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 01:04:01,586 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:04:01,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:04:01,586 INFO L85 PathProgramCache]: Analyzing trace with hash -590131667, now seen corresponding path program 1 times [2025-03-09 01:04:01,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:04:01,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805202709] [2025-03-09 01:04:01,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:04:01,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:04:01,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-09 01:04:01,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-09 01:04:01,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:04:01,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:04:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:04:01,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:04:01,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805202709] [2025-03-09 01:04:01,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805202709] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:04:01,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:04:01,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 01:04:01,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907443428] [2025-03-09 01:04:01,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:04:01,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:04:01,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:04:01,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:04:01,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:04:01,722 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-03-09 01:04:01,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 69 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2025-03-09 01:04:01,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:04:01,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-03-09 01:04:01,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:04:03,821 INFO L124 PetriNetUnfolderBase]: 28281/39361 cut-off events. [2025-03-09 01:04:03,821 INFO L125 PetriNetUnfolderBase]: For 53967/53967 co-relation queries the response was YES. [2025-03-09 01:04:04,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120335 conditions, 39361 events. 28281/39361 cut-off events. For 53967/53967 co-relation queries the response was YES. Maximal size of possible extension queue 911. Compared 232895 event pairs, 5121 based on Foata normal form. 144/39485 useless extension candidates. Maximal degree in co-relation 120311. Up to 20646 conditions per place. [2025-03-09 01:04:04,162 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 112 selfloop transitions, 2 changer transitions 75/195 dead transitions. [2025-03-09 01:04:04,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 195 transitions, 1413 flow [2025-03-09 01:04:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:04:04,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 01:04:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 195 transitions. [2025-03-09 01:04:04,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2025-03-09 01:04:04,164 INFO L175 Difference]: Start difference. First operand has 81 places, 69 transitions, 362 flow. Second operand 6 states and 195 transitions. [2025-03-09 01:04:04,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 195 transitions, 1413 flow [2025-03-09 01:04:04,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 195 transitions, 1391 flow, removed 9 selfloop flow, removed 3 redundant places. [2025-03-09 01:04:04,485 INFO L231 Difference]: Finished difference. Result has 85 places, 70 transitions, 379 flow [2025-03-09 01:04:04,485 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=379, PETRI_PLACES=85, PETRI_TRANSITIONS=70} [2025-03-09 01:04:04,485 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 23 predicate places. [2025-03-09 01:04:04,485 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 70 transitions, 379 flow [2025-03-09 01:04:04,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2025-03-09 01:04:04,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:04:04,486 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:04:04,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 01:04:04,486 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:04:04,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:04:04,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1775147331, now seen corresponding path program 2 times [2025-03-09 01:04:04,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:04:04,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449693621] [2025-03-09 01:04:04,487 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:04:04,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:04:04,497 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 1 equivalence classes. [2025-03-09 01:04:04,512 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-09 01:04:04,512 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:04:04,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:04:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:04:04,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:04:04,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449693621] [2025-03-09 01:04:04,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449693621] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:04:04,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:04:04,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 01:04:04,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629159611] [2025-03-09 01:04:04,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:04:04,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 01:04:04,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:04:04,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 01:04:04,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:04:04,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:04:04,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 70 transitions, 379 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:04:04,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:04:04,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:04:04,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand