./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:24:32,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:24:32,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:24:32,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:24:32,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:24:32,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:24:32,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:24:32,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:24:32,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:24:32,299 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:24:32,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:24:32,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:24:32,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:24:32,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:24:32,300 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:24:32,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:24:32,300 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:24:32,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:24:32,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:24:32,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:24:32,300 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:24:32,300 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:24:32,300 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:24:32,301 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:24:32,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:24:32,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:24:32,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:24:32,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:24:32,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:24:32,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:24:32,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:24:32,302 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:24:32,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:24:32,302 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 [2025-02-08 08:24:32,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:24:32,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:24:32,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:24:32,536 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:24:32,537 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:24:32,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:24:33,636 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e7c8bb443/441676cab7364fd2abf3b37f4cfd0cfc/FLAGe33b60d8a [2025-02-08 08:24:33,993 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:24:33,994 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:24:34,010 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e7c8bb443/441676cab7364fd2abf3b37f4cfd0cfc/FLAGe33b60d8a [2025-02-08 08:24:34,237 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e7c8bb443/441676cab7364fd2abf3b37f4cfd0cfc [2025-02-08 08:24:34,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:24:34,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:24:34,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:24:34,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:24:34,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:24:34,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1716f945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34, skipping insertion in model container [2025-02-08 08:24:34,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,281 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:24:34,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:24:34,472 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:24:34,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:24:34,549 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:24:34,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34 WrapperNode [2025-02-08 08:24:34,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:24:34,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:24:34,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:24:34,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:24:34,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,587 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-02-08 08:24:34,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:24:34,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:24:34,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:24:34,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:24:34,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,601 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,619 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 08:24:34,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,624 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:24:34,633 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:24:34,633 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:24:34,633 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:24:34,638 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (1/1) ... [2025-02-08 08:24:34,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:24:34,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:24:34,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:24:34,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:24:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:24:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:24:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:24:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:24:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:24:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:24:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:24:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:24:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:24:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:24:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:24:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:24:34,685 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:24:34,791 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:24:34,793 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:24:34,931 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:24:34,931 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:24:34,997 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:24:34,997 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:24:34,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:24:34 BoogieIcfgContainer [2025-02-08 08:24:34,997 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:24:34,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:24:34,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:24:35,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:24:35,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:24:34" (1/3) ... [2025-02-08 08:24:35,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b2e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:24:35, skipping insertion in model container [2025-02-08 08:24:35,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:34" (2/3) ... [2025-02-08 08:24:35,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b2e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:24:35, skipping insertion in model container [2025-02-08 08:24:35,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:24:34" (3/3) ... [2025-02-08 08:24:35,005 INFO L128 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:24:35,016 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:24:35,017 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:24:35,018 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:24:35,049 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:24:35,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2025-02-08 08:24:35,114 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-02-08 08:24:35,116 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:24:35,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-02-08 08:24:35,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2025-02-08 08:24:35,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2025-02-08 08:24:35,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:24:35,133 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;@7db829d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:24:35,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 08:24:35,150 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:24:35,150 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-02-08 08:24:35,150 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:24:35,151 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:35,151 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:35,151 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:35,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:35,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1734780392, now seen corresponding path program 1 times [2025-02-08 08:24:35,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:35,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967491429] [2025-02-08 08:24:35,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:35,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:35,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:24:35,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:24:35,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:35,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:35,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:35,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967491429] [2025-02-08 08:24:35,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967491429] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:35,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:35,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:24:35,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678660573] [2025-02-08 08:24:35,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:35,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:24:35,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:35,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:24:35,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:24:35,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:24:35,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:35,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:35,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:24:35,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:36,033 INFO L124 PetriNetUnfolderBase]: 4775/7427 cut-off events. [2025-02-08 08:24:36,033 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-02-08 08:24:36,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14322 conditions, 7427 events. 4775/7427 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 43889 event pairs, 4775 based on Foata normal form. 648/8024 useless extension candidates. Maximal degree in co-relation 14311. Up to 6804 conditions per place. [2025-02-08 08:24:36,077 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2025-02-08 08:24:36,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2025-02-08 08:24:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:24:36,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:24:36,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-02-08 08:24:36,123 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-02-08 08:24:36,125 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2025-02-08 08:24:36,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2025-02-08 08:24:36,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:24:36,131 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2025-02-08 08:24:36,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2025-02-08 08:24:36,137 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-02-08 08:24:36,138 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2025-02-08 08:24:36,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:36,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:36,138 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:36,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:24:36,139 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:36,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:36,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1734778999, now seen corresponding path program 1 times [2025-02-08 08:24:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:36,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202553618] [2025-02-08 08:24:36,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:36,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:36,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:24:36,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:24:36,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:36,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:36,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:36,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202553618] [2025-02-08 08:24:36,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202553618] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:36,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:36,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:24:36,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9450204] [2025-02-08 08:24:36,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:36,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:24:36,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:36,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:24:36,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:24:36,395 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:24:36,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:36,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:36,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:24:36,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:37,822 INFO L124 PetriNetUnfolderBase]: 10199/15096 cut-off events. [2025-02-08 08:24:37,823 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:24:37,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29886 conditions, 15096 events. 10199/15096 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 93356 event pairs, 2427 based on Foata normal form. 0/14714 useless extension candidates. Maximal degree in co-relation 29880. Up to 5690 conditions per place. [2025-02-08 08:24:37,881 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 47 selfloop transitions, 6 changer transitions 97/155 dead transitions. [2025-02-08 08:24:37,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 155 transitions, 622 flow [2025-02-08 08:24:37,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:24:37,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:24:37,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 233 transitions. [2025-02-08 08:24:37,886 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2025-02-08 08:24:37,887 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 233 transitions. [2025-02-08 08:24:37,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 155 transitions, 622 flow [2025-02-08 08:24:37,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 155 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:24:37,891 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2025-02-08 08:24:37,891 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2025-02-08 08:24:37,892 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2025-02-08 08:24:37,892 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2025-02-08 08:24:37,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:37,892 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:37,892 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:37,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:24:37,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:37,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:37,893 INFO L85 PathProgramCache]: Analyzing trace with hash -659673624, now seen corresponding path program 1 times [2025-02-08 08:24:37,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:37,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991532065] [2025-02-08 08:24:37,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:37,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:37,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:24:37,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:24:37,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:37,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:38,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:38,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991532065] [2025-02-08 08:24:38,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991532065] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:38,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:38,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:38,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220459040] [2025-02-08 08:24:38,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:38,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:38,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:38,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:38,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:38,086 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:24:38,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:38,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:38,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:24:38,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:39,349 INFO L124 PetriNetUnfolderBase]: 7827/11755 cut-off events. [2025-02-08 08:24:39,349 INFO L125 PetriNetUnfolderBase]: For 14544/14556 co-relation queries the response was YES. [2025-02-08 08:24:39,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32281 conditions, 11755 events. 7827/11755 cut-off events. For 14544/14556 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 68893 event pairs, 950 based on Foata normal form. 346/12090 useless extension candidates. Maximal degree in co-relation 32266. Up to 4878 conditions per place. [2025-02-08 08:24:39,395 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 60 selfloop transitions, 7 changer transitions 88/160 dead transitions. [2025-02-08 08:24:39,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 160 transitions, 981 flow [2025-02-08 08:24:39,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:24:39,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:24:39,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 235 transitions. [2025-02-08 08:24:39,397 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5465116279069767 [2025-02-08 08:24:39,398 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 235 transitions. [2025-02-08 08:24:39,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 160 transitions, 981 flow [2025-02-08 08:24:39,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 160 transitions, 879 flow, removed 27 selfloop flow, removed 4 redundant places. [2025-02-08 08:24:39,431 INFO L231 Difference]: Finished difference. Result has 65 places, 42 transitions, 213 flow [2025-02-08 08:24:39,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=213, PETRI_PLACES=65, PETRI_TRANSITIONS=42} [2025-02-08 08:24:39,432 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2025-02-08 08:24:39,432 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 42 transitions, 213 flow [2025-02-08 08:24:39,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:39,432 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:39,432 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:39,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:24:39,432 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:39,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:39,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1743985768, now seen corresponding path program 1 times [2025-02-08 08:24:39,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:39,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654290243] [2025-02-08 08:24:39,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:39,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:39,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:24:39,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:24:39,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:39,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:39,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:39,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654290243] [2025-02-08 08:24:39,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654290243] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:39,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:39,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:39,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022620008] [2025-02-08 08:24:39,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:39,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:39,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:39,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:39,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:39,656 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:24:39,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 42 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:39,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:39,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:24:39,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:40,452 INFO L124 PetriNetUnfolderBase]: 7136/10697 cut-off events. [2025-02-08 08:24:40,452 INFO L125 PetriNetUnfolderBase]: For 23975/23981 co-relation queries the response was YES. [2025-02-08 08:24:40,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31702 conditions, 10697 events. 7136/10697 cut-off events. For 23975/23981 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 61624 event pairs, 1475 based on Foata normal form. 285/10977 useless extension candidates. Maximal degree in co-relation 31680. Up to 4685 conditions per place. [2025-02-08 08:24:40,521 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 63 selfloop transitions, 11 changer transitions 78/157 dead transitions. [2025-02-08 08:24:40,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 157 transitions, 965 flow [2025-02-08 08:24:40,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:24:40,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:24:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 235 transitions. [2025-02-08 08:24:40,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5465116279069767 [2025-02-08 08:24:40,523 INFO L175 Difference]: Start difference. First operand has 65 places, 42 transitions, 213 flow. Second operand 10 states and 235 transitions. [2025-02-08 08:24:40,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 157 transitions, 965 flow [2025-02-08 08:24:40,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 157 transitions, 912 flow, removed 24 selfloop flow, removed 3 redundant places. [2025-02-08 08:24:40,567 INFO L231 Difference]: Finished difference. Result has 74 places, 46 transitions, 297 flow [2025-02-08 08:24:40,567 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=297, PETRI_PLACES=74, PETRI_TRANSITIONS=46} [2025-02-08 08:24:40,568 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-02-08 08:24:40,568 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 46 transitions, 297 flow [2025-02-08 08:24:40,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:40,568 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:40,568 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:40,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:24:40,569 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:40,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:40,569 INFO L85 PathProgramCache]: Analyzing trace with hash -632341811, now seen corresponding path program 1 times [2025-02-08 08:24:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:40,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520394404] [2025-02-08 08:24:40,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:40,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:40,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:24:40,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:24:40,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:40,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:40,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:40,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520394404] [2025-02-08 08:24:40,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520394404] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:40,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:40,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:40,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307891796] [2025-02-08 08:24:40,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:40,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:24:40,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:40,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:24:40,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:24:40,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:24:40,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 46 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:40,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:40,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:24:40,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:41,239 INFO L124 PetriNetUnfolderBase]: 6615/10060 cut-off events. [2025-02-08 08:24:41,239 INFO L125 PetriNetUnfolderBase]: For 25684/25690 co-relation queries the response was YES. [2025-02-08 08:24:41,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30762 conditions, 10060 events. 6615/10060 cut-off events. For 25684/25690 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 57895 event pairs, 4363 based on Foata normal form. 250/10300 useless extension candidates. Maximal degree in co-relation 30732. Up to 7029 conditions per place. [2025-02-08 08:24:41,295 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 53 selfloop transitions, 6 changer transitions 49/113 dead transitions. [2025-02-08 08:24:41,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 113 transitions, 817 flow [2025-02-08 08:24:41,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:24:41,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:24:41,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2025-02-08 08:24:41,297 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5182724252491694 [2025-02-08 08:24:41,297 INFO L175 Difference]: Start difference. First operand has 74 places, 46 transitions, 297 flow. Second operand 7 states and 156 transitions. [2025-02-08 08:24:41,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 113 transitions, 817 flow [2025-02-08 08:24:41,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 113 transitions, 759 flow, removed 27 selfloop flow, removed 9 redundant places. [2025-02-08 08:24:41,379 INFO L231 Difference]: Finished difference. Result has 70 places, 46 transitions, 287 flow [2025-02-08 08:24:41,380 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=287, PETRI_PLACES=70, PETRI_TRANSITIONS=46} [2025-02-08 08:24:41,380 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2025-02-08 08:24:41,380 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 46 transitions, 287 flow [2025-02-08 08:24:41,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:41,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:41,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:41,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:24:41,381 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:41,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:41,381 INFO L85 PathProgramCache]: Analyzing trace with hash -388851255, now seen corresponding path program 1 times [2025-02-08 08:24:41,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:41,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336132353] [2025-02-08 08:24:41,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:41,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:41,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 08:24:41,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:24:41,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:41,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:41,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:41,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336132353] [2025-02-08 08:24:41,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336132353] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:41,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:41,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:24:41,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433701671] [2025-02-08 08:24:41,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:41,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:24:41,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:41,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:24:41,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:24:41,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:24:41,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 46 transitions, 287 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:41,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:41,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:24:41,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:42,025 INFO L124 PetriNetUnfolderBase]: 5954/9032 cut-off events. [2025-02-08 08:24:42,025 INFO L125 PetriNetUnfolderBase]: For 18606/18612 co-relation queries the response was YES. [2025-02-08 08:24:42,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26999 conditions, 9032 events. 5954/9032 cut-off events. For 18606/18612 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 50582 event pairs, 3331 based on Foata normal form. 121/9151 useless extension candidates. Maximal degree in co-relation 26972. Up to 7422 conditions per place. [2025-02-08 08:24:42,082 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 59 selfloop transitions, 5 changer transitions 41/110 dead transitions. [2025-02-08 08:24:42,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 110 transitions, 759 flow [2025-02-08 08:24:42,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:24:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:24:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 152 transitions. [2025-02-08 08:24:42,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5049833887043189 [2025-02-08 08:24:42,084 INFO L175 Difference]: Start difference. First operand has 70 places, 46 transitions, 287 flow. Second operand 7 states and 152 transitions. [2025-02-08 08:24:42,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 110 transitions, 759 flow [2025-02-08 08:24:42,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 110 transitions, 713 flow, removed 12 selfloop flow, removed 10 redundant places. [2025-02-08 08:24:42,111 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 284 flow [2025-02-08 08:24:42,111 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2025-02-08 08:24:42,111 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2025-02-08 08:24:42,111 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 284 flow [2025-02-08 08:24:42,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:42,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:42,112 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:42,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:24:42,112 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:42,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:42,112 INFO L85 PathProgramCache]: Analyzing trace with hash -687725528, now seen corresponding path program 1 times [2025-02-08 08:24:42,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:42,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581265492] [2025-02-08 08:24:42,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:42,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:42,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:24:42,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:24:42,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:42,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:42,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:42,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581265492] [2025-02-08 08:24:42,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581265492] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:42,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:42,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:42,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211380247] [2025-02-08 08:24:42,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:42,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:42,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:42,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:42,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:42,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:24:42,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 284 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:42,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:42,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:24:42,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:42,824 INFO L124 PetriNetUnfolderBase]: 8000/11965 cut-off events. [2025-02-08 08:24:42,824 INFO L125 PetriNetUnfolderBase]: For 21521/21551 co-relation queries the response was YES. [2025-02-08 08:24:42,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34435 conditions, 11965 events. 8000/11965 cut-off events. For 21521/21551 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 68253 event pairs, 1670 based on Foata normal form. 184/12139 useless extension candidates. Maximal degree in co-relation 34410. Up to 4450 conditions per place. [2025-02-08 08:24:42,868 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 56 selfloop transitions, 4 changer transitions 60/125 dead transitions. [2025-02-08 08:24:42,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 125 transitions, 884 flow [2025-02-08 08:24:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:24:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:24:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2025-02-08 08:24:42,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-02-08 08:24:42,870 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 284 flow. Second operand 8 states and 172 transitions. [2025-02-08 08:24:42,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 125 transitions, 884 flow [2025-02-08 08:24:42,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 125 transitions, 846 flow, removed 12 selfloop flow, removed 6 redundant places. [2025-02-08 08:24:42,910 INFO L231 Difference]: Finished difference. Result has 70 places, 41 transitions, 239 flow [2025-02-08 08:24:42,910 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=239, PETRI_PLACES=70, PETRI_TRANSITIONS=41} [2025-02-08 08:24:42,911 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2025-02-08 08:24:42,911 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 41 transitions, 239 flow [2025-02-08 08:24:42,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:42,911 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:42,911 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] [2025-02-08 08:24:42,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:24:42,911 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:42,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash -884407356, now seen corresponding path program 1 times [2025-02-08 08:24:42,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:42,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717158370] [2025-02-08 08:24:42,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:42,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:24:42,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:24:42,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:42,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:42,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:42,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717158370] [2025-02-08 08:24:42,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717158370] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:42,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:42,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:24:42,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682143792] [2025-02-08 08:24:42,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:42,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:24:42,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:42,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:24:42,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:24:42,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-08 08:24:42,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 41 transitions, 239 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:42,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:42,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-08 08:24:42,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:43,201 INFO L124 PetriNetUnfolderBase]: 3080/4894 cut-off events. [2025-02-08 08:24:43,202 INFO L125 PetriNetUnfolderBase]: For 8687/8693 co-relation queries the response was YES. [2025-02-08 08:24:43,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13729 conditions, 4894 events. 3080/4894 cut-off events. For 8687/8693 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 26860 event pairs, 476 based on Foata normal form. 230/5122 useless extension candidates. Maximal degree in co-relation 13702. Up to 2737 conditions per place. [2025-02-08 08:24:43,225 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 71 selfloop transitions, 5 changer transitions 1/82 dead transitions. [2025-02-08 08:24:43,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 82 transitions, 659 flow [2025-02-08 08:24:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:24:43,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:24:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2025-02-08 08:24:43,226 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5872093023255814 [2025-02-08 08:24:43,226 INFO L175 Difference]: Start difference. First operand has 70 places, 41 transitions, 239 flow. Second operand 4 states and 101 transitions. [2025-02-08 08:24:43,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 82 transitions, 659 flow [2025-02-08 08:24:43,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 82 transitions, 558 flow, removed 25 selfloop flow, removed 12 redundant places. [2025-02-08 08:24:43,235 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 224 flow [2025-02-08 08:24:43,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=224, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2025-02-08 08:24:43,235 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 12 predicate places. [2025-02-08 08:24:43,236 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 224 flow [2025-02-08 08:24:43,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:43,236 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:43,236 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] [2025-02-08 08:24:43,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:24:43,236 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:43,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:43,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1000209265, now seen corresponding path program 1 times [2025-02-08 08:24:43,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:43,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507108446] [2025-02-08 08:24:43,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:43,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:43,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:24:43,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:24:43,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:43,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:43,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:43,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507108446] [2025-02-08 08:24:43,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507108446] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:43,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:43,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:24:43,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826179554] [2025-02-08 08:24:43,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:43,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:24:43,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:43,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:24:43,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:24:43,319 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-08 08:24:43,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 224 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) [2025-02-08 08:24:43,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:43,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-08 08:24:43,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:43,545 INFO L124 PetriNetUnfolderBase]: 1894/3047 cut-off events. [2025-02-08 08:24:43,546 INFO L125 PetriNetUnfolderBase]: For 3885/3891 co-relation queries the response was YES. [2025-02-08 08:24:43,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8669 conditions, 3047 events. 1894/3047 cut-off events. For 3885/3891 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 15103 event pairs, 230 based on Foata normal form. 177/3222 useless extension candidates. Maximal degree in co-relation 8650. Up to 1125 conditions per place. [2025-02-08 08:24:43,557 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 74 selfloop transitions, 8 changer transitions 2/89 dead transitions. [2025-02-08 08:24:43,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 89 transitions, 622 flow [2025-02-08 08:24:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:24:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:24:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2025-02-08 08:24:43,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5720930232558139 [2025-02-08 08:24:43,559 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 224 flow. Second operand 5 states and 123 transitions. [2025-02-08 08:24:43,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 89 transitions, 622 flow [2025-02-08 08:24:43,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 89 transitions, 612 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 08:24:43,566 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 264 flow [2025-02-08 08:24:43,566 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2025-02-08 08:24:43,567 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2025-02-08 08:24:43,567 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 264 flow [2025-02-08 08:24:43,567 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) [2025-02-08 08:24:43,567 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:43,567 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] [2025-02-08 08:24:43,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:24:43,568 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:43,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:43,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1563512208, now seen corresponding path program 1 times [2025-02-08 08:24:43,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:43,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673933183] [2025-02-08 08:24:43,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:43,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:43,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 08:24:43,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 08:24:43,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:43,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:43,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:43,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673933183] [2025-02-08 08:24:43,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673933183] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:43,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:43,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:43,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731877937] [2025-02-08 08:24:43,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:43,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:43,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:43,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:43,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:43,779 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-08 08:24:43,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:43,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:43,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-08 08:24:43,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:43,913 INFO L124 PetriNetUnfolderBase]: 1102/1747 cut-off events. [2025-02-08 08:24:43,913 INFO L125 PetriNetUnfolderBase]: For 3253/3259 co-relation queries the response was YES. [2025-02-08 08:24:43,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5547 conditions, 1747 events. 1102/1747 cut-off events. For 3253/3259 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 7515 event pairs, 158 based on Foata normal form. 81/1826 useless extension candidates. Maximal degree in co-relation 5526. Up to 568 conditions per place. [2025-02-08 08:24:43,919 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 56 selfloop transitions, 11 changer transitions 11/83 dead transitions. [2025-02-08 08:24:43,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 83 transitions, 592 flow [2025-02-08 08:24:43,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:24:43,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:24:43,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2025-02-08 08:24:43,920 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49224806201550386 [2025-02-08 08:24:43,921 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 264 flow. Second operand 6 states and 127 transitions. [2025-02-08 08:24:43,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 83 transitions, 592 flow [2025-02-08 08:24:43,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 83 transitions, 538 flow, removed 7 selfloop flow, removed 7 redundant places. [2025-02-08 08:24:43,925 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 242 flow [2025-02-08 08:24:43,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=242, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2025-02-08 08:24:43,926 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2025-02-08 08:24:43,926 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 242 flow [2025-02-08 08:24:43,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:43,927 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:43,927 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] [2025-02-08 08:24:43,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:24:43,927 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:43,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:43,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1667149469, now seen corresponding path program 1 times [2025-02-08 08:24:43,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:43,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570330414] [2025-02-08 08:24:43,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:43,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:43,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 08:24:43,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 08:24:43,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:43,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:44,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:44,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:44,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570330414] [2025-02-08 08:24:44,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570330414] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:44,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:44,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:44,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160169587] [2025-02-08 08:24:44,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:44,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:44,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:44,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:44,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:44,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:24:44,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:44,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:44,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:24:44,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:44,295 INFO L124 PetriNetUnfolderBase]: 1286/2042 cut-off events. [2025-02-08 08:24:44,295 INFO L125 PetriNetUnfolderBase]: For 3117/3117 co-relation queries the response was YES. [2025-02-08 08:24:44,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6350 conditions, 2042 events. 1286/2042 cut-off events. For 3117/3117 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9140 event pairs, 425 based on Foata normal form. 8/2049 useless extension candidates. Maximal degree in co-relation 6331. Up to 1262 conditions per place. [2025-02-08 08:24:44,304 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 35 selfloop transitions, 3 changer transitions 45/88 dead transitions. [2025-02-08 08:24:44,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 88 transitions, 622 flow [2025-02-08 08:24:44,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:24:44,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:24:44,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2025-02-08 08:24:44,307 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4689922480620155 [2025-02-08 08:24:44,307 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 242 flow. Second operand 6 states and 121 transitions. [2025-02-08 08:24:44,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 88 transitions, 622 flow [2025-02-08 08:24:44,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 88 transitions, 480 flow, removed 20 selfloop flow, removed 10 redundant places. [2025-02-08 08:24:44,324 INFO L231 Difference]: Finished difference. Result has 61 places, 39 transitions, 153 flow [2025-02-08 08:24:44,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=153, PETRI_PLACES=61, PETRI_TRANSITIONS=39} [2025-02-08 08:24:44,324 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 14 predicate places. [2025-02-08 08:24:44,325 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 39 transitions, 153 flow [2025-02-08 08:24:44,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:44,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:44,325 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] [2025-02-08 08:24:44,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:24:44,325 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:24:44,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:44,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1136816175, now seen corresponding path program 2 times [2025-02-08 08:24:44,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:44,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456205612] [2025-02-08 08:24:44,326 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:24:44,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:44,335 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 1 equivalence classes. [2025-02-08 08:24:44,338 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 08:24:44,339 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:24:44,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:24:44,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456205612] [2025-02-08 08:24:44,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456205612] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:44,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:44,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:24:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52258658] [2025-02-08 08:24:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:44,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:24:44,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:44,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:24:44,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:24:44,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:24:44,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 39 transitions, 153 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:44,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:44,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:24:44,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:44,545 INFO L124 PetriNetUnfolderBase]: 374/606 cut-off events. [2025-02-08 08:24:44,545 INFO L125 PetriNetUnfolderBase]: For 418/418 co-relation queries the response was YES. [2025-02-08 08:24:44,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 606 events. 374/606 cut-off events. For 418/418 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1968 event pairs, 38 based on Foata normal form. 8/614 useless extension candidates. Maximal degree in co-relation 1522. Up to 444 conditions per place. [2025-02-08 08:24:44,547 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2025-02-08 08:24:44,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 55 transitions, 297 flow [2025-02-08 08:24:44,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:24:44,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:24:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2025-02-08 08:24:44,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34011627906976744 [2025-02-08 08:24:44,548 INFO L175 Difference]: Start difference. First operand has 61 places, 39 transitions, 153 flow. Second operand 8 states and 117 transitions. [2025-02-08 08:24:44,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 55 transitions, 297 flow [2025-02-08 08:24:44,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 55 transitions, 255 flow, removed 5 selfloop flow, removed 11 redundant places. [2025-02-08 08:24:44,548 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2025-02-08 08:24:44,549 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2025-02-08 08:24:44,549 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 5 predicate places. [2025-02-08 08:24:44,549 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2025-02-08 08:24:44,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:24:44,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-08 08:24:44,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-08 08:24:44,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-08 08:24:44,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 08:24:44,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 08:24:44,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 08:24:44,554 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:44,557 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:24:44,557 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:24:44,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:24:44 BasicIcfg [2025-02-08 08:24:44,561 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:24:44,562 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:24:44,562 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:24:44,562 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:24:44,563 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:24:34" (3/4) ... [2025-02-08 08:24:44,564 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:24:44,568 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 08:24:44,568 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 08:24:44,568 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 08:24:44,571 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-08 08:24:44,571 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 08:24:44,571 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 08:24:44,572 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 08:24:44,628 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:24:44,628 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:24:44,628 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:24:44,629 INFO L158 Benchmark]: Toolchain (without parser) took 10387.17ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 110.9MB in the beginning and 108.6MB in the end (delta: 2.3MB). Peak memory consumption was 363.0MB. Max. memory is 16.1GB. [2025-02-08 08:24:44,629 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:24:44,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.77ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 91.0MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:24:44,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.63ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:24:44,631 INFO L158 Benchmark]: Boogie Preprocessor took 43.85ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 87.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:24:44,631 INFO L158 Benchmark]: IcfgBuilder took 364.42ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 66.8MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:24:44,631 INFO L158 Benchmark]: TraceAbstraction took 9562.44ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 66.3MB in the beginning and 112.9MB in the end (delta: -46.6MB). Peak memory consumption was 312.6MB. Max. memory is 16.1GB. [2025-02-08 08:24:44,632 INFO L158 Benchmark]: Witness Printer took 66.54ms. Allocated memory is still 503.3MB. Free memory was 112.9MB in the beginning and 108.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:24:44,632 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.77ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 91.0MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.63ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.85ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 87.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 364.42ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 66.8MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9562.44ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 66.3MB in the beginning and 112.9MB in the end (delta: -46.6MB). Peak memory consumption was 312.6MB. Max. memory is 16.1GB. * Witness Printer took 66.54ms. Allocated memory is still 503.3MB. Free memory was 112.9MB in the beginning and 108.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 794 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 790 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1951 IncrementalHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 3 mSDtfsCounter, 1951 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=297occurred in iteration=4, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 972 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:24:44,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE