./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe015_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/safe015_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 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:24:44,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:24:44,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:24:44,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:24:44,248 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:24:44,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:24:44,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:24:44,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:24:44,271 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:24:44,271 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:24:44,272 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:24:44,272 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:24:44,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:24:44,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:24:44,272 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:24:44,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:24:44,273 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:24:44,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:24:44,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:24:44,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:24:44,273 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:24:44,273 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:24:44,273 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:24:44,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:24:44,274 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:24:44,274 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:24:44,274 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:24:44,274 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:24:44,274 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:24:44,274 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:24:44,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:24:44,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:24:44,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:24:44,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:24:44,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:24:44,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:24:44,275 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:24:44,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:24:44,275 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:24:44,275 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:24:44,275 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:24:44,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:24:44,275 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 -> 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 [2025-02-08 08:24:44,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:24:44,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:24:44,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:24:44,549 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:24:44,550 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:24:44,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:24:45,849 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9427279b2/2e72b790a91c45e6afd76015c302553f/FLAG927754674 [2025-02-08 08:24:46,203 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:24:46,203 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:24:46,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9427279b2/2e72b790a91c45e6afd76015c302553f/FLAG927754674 [2025-02-08 08:24:46,234 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9427279b2/2e72b790a91c45e6afd76015c302553f [2025-02-08 08:24:46,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:24:46,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:24:46,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:24:46,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:24:46,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:24:46,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ea0041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46, skipping insertion in model container [2025-02-08 08:24:46,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:24:46,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:24:46,474 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:24:46,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:24:46,526 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:24:46,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46 WrapperNode [2025-02-08 08:24:46,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:24:46,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:24:46,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:24:46,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:24:46,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,550 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2025-02-08 08:24:46,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:24:46,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:24:46,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:24:46,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:24:46,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,564 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 08:24:46,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,567 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:24:46,571 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:24:46,571 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:24:46,571 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:24:46,571 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (1/1) ... [2025-02-08 08:24:46,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:24:46,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:24:46,594 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 08:24:46,596 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 08:24:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:24:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:24:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:24:46,611 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:24:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:24:46,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:24:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:24:46,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:24:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:24:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:24:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:24:46,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:24:46,613 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 08:24:46,686 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:24:46,687 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:24:46,791 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:24:46,791 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:24:46,850 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:24:46,850 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:24:46,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:24:46 BoogieIcfgContainer [2025-02-08 08:24:46,851 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:24:46,852 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:24:46,852 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:24:46,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:24:46,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:24:46" (1/3) ... [2025-02-08 08:24:46,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62eabbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:24:46, skipping insertion in model container [2025-02-08 08:24:46,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:24:46" (2/3) ... [2025-02-08 08:24:46,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62eabbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:24:46, skipping insertion in model container [2025-02-08 08:24:46,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:24:46" (3/3) ... [2025-02-08 08:24:46,858 INFO L128 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:24:46,868 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:24:46,869 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:24:46,869 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:24:46,937 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:24:46,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2025-02-08 08:24:47,004 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2025-02-08 08:24:47,009 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:24:47,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-02-08 08:24:47,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2025-02-08 08:24:47,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2025-02-08 08:24:47,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:24:47,034 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;@4f1e5c48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:24:47,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 08:24:47,050 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:24:47,051 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2025-02-08 08:24:47,051 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:24:47,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:47,052 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:47,052 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 08:24:47,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:47,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1380499575, now seen corresponding path program 1 times [2025-02-08 08:24:47,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:47,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796680934] [2025-02-08 08:24:47,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:47,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:47,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:24:47,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:24:47,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:47,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:47,236 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 08:24:47,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:47,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796680934] [2025-02-08 08:24:47,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796680934] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:47,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:47,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:24:47,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194187786] [2025-02-08 08:24:47,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:47,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:24:47,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:47,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:24:47,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:24:47,273 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-08 08:24:47,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 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 08:24:47,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:47,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-08 08:24:47,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:47,971 INFO L124 PetriNetUnfolderBase]: 5627/8719 cut-off events. [2025-02-08 08:24:47,972 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-02-08 08:24:47,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16818 conditions, 8719 events. 5627/8719 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 52287 event pairs, 5627 based on Foata normal form. 756/9418 useless extension candidates. Maximal degree in co-relation 16807. Up to 7994 conditions per place. [2025-02-08 08:24:48,027 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 28 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2025-02-08 08:24:48,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 141 flow [2025-02-08 08:24:48,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:24:48,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:24:48,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-02-08 08:24:48,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2025-02-08 08:24:48,041 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 60 transitions. [2025-02-08 08:24:48,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 141 flow [2025-02-08 08:24:48,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:24:48,048 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2025-02-08 08:24:48,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2025-02-08 08:24:48,053 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2025-02-08 08:24:48,055 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2025-02-08 08:24:48,055 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 08:24:48,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:48,056 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:48,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:24:48,056 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 08:24:48,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:48,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1380500968, now seen corresponding path program 1 times [2025-02-08 08:24:48,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:48,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558336097] [2025-02-08 08:24:48,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:48,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:48,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:24:48,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:24:48,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:48,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:48,372 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 08:24:48,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:48,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558336097] [2025-02-08 08:24:48,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558336097] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:48,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:48,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:24:48,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464890510] [2025-02-08 08:24:48,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:48,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:24:48,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:48,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:24:48,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:24:48,377 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-08 08:24:48,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 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 08:24:48,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:48,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-08 08:24:48,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:49,676 INFO L124 PetriNetUnfolderBase]: 12071/17715 cut-off events. [2025-02-08 08:24:49,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:24:49,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35153 conditions, 17715 events. 12071/17715 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 638. Compared 109178 event pairs, 3165 based on Foata normal form. 0/17276 useless extension candidates. Maximal degree in co-relation 35147. Up to 5921 conditions per place. [2025-02-08 08:24:49,754 INFO L140 encePairwiseOnDemand]: 33/44 looper letters, 48 selfloop transitions, 7 changer transitions 103/163 dead transitions. [2025-02-08 08:24:49,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 163 transitions, 654 flow [2025-02-08 08:24:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:24:49,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:24:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 241 transitions. [2025-02-08 08:24:49,758 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6085858585858586 [2025-02-08 08:24:49,758 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 241 transitions. [2025-02-08 08:24:49,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 163 transitions, 654 flow [2025-02-08 08:24:49,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 163 transitions, 653 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:24:49,763 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 173 flow [2025-02-08 08:24:49,764 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=173, PETRI_PLACES=59, PETRI_TRANSITIONS=40} [2025-02-08 08:24:49,764 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2025-02-08 08:24:49,764 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 173 flow [2025-02-08 08:24:49,764 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 08:24:49,764 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:49,765 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 08:24:49,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:24:49,765 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 08:24:49,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:49,766 INFO L85 PathProgramCache]: Analyzing trace with hash -467830585, now seen corresponding path program 1 times [2025-02-08 08:24:49,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:49,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188492706] [2025-02-08 08:24:49,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:49,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:49,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:24:49,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:24:49,793 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:49,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:49,996 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 08:24:49,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:49,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188492706] [2025-02-08 08:24:49,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188492706] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:49,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:49,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:49,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729674612] [2025-02-08 08:24:49,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:50,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:50,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:50,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:50,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:50,003 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-08 08:24:50,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 173 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 08:24:50,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:50,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-08 08:24:50,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:51,091 INFO L124 PetriNetUnfolderBase]: 9273/13837 cut-off events. [2025-02-08 08:24:51,092 INFO L125 PetriNetUnfolderBase]: For 18197/18197 co-relation queries the response was YES. [2025-02-08 08:24:51,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39462 conditions, 13837 events. 9273/13837 cut-off events. For 18197/18197 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 84691 event pairs, 806 based on Foata normal form. 416/14247 useless extension candidates. Maximal degree in co-relation 39447. Up to 5267 conditions per place. [2025-02-08 08:24:51,165 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 66 selfloop transitions, 8 changer transitions 98/177 dead transitions. [2025-02-08 08:24:51,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 177 transitions, 1105 flow [2025-02-08 08:24:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:24:51,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:24:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 250 transitions. [2025-02-08 08:24:51,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2025-02-08 08:24:51,167 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 173 flow. Second operand 10 states and 250 transitions. [2025-02-08 08:24:51,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 177 transitions, 1105 flow [2025-02-08 08:24:51,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 177 transitions, 983 flow, removed 30 selfloop flow, removed 4 redundant places. [2025-02-08 08:24:51,273 INFO L231 Difference]: Finished difference. Result has 66 places, 44 transitions, 233 flow [2025-02-08 08:24:51,273 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=233, PETRI_PLACES=66, PETRI_TRANSITIONS=44} [2025-02-08 08:24:51,274 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-02-08 08:24:51,274 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 44 transitions, 233 flow [2025-02-08 08:24:51,274 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 08:24:51,274 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:51,274 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:51,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:24:51,274 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 08:24:51,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:51,275 INFO L85 PathProgramCache]: Analyzing trace with hash 945480754, now seen corresponding path program 1 times [2025-02-08 08:24:51,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:51,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003978728] [2025-02-08 08:24:51,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:51,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:51,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:24:51,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:24:51,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:51,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:51,500 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 08:24:51,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:51,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003978728] [2025-02-08 08:24:51,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003978728] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:51,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:51,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:51,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299220791] [2025-02-08 08:24:51,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:51,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:51,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:51,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:51,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:51,503 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-08 08:24:51,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 44 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 08:24:51,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:51,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-08 08:24:51,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:53,029 INFO L124 PetriNetUnfolderBase]: 8722/13024 cut-off events. [2025-02-08 08:24:53,030 INFO L125 PetriNetUnfolderBase]: For 32984/32990 co-relation queries the response was YES. [2025-02-08 08:24:53,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40513 conditions, 13024 events. 8722/13024 cut-off events. For 32984/32990 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 78063 event pairs, 1421 based on Foata normal form. 340/13362 useless extension candidates. Maximal degree in co-relation 40491. Up to 5299 conditions per place. [2025-02-08 08:24:53,095 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 66 selfloop transitions, 17 changer transitions 78/166 dead transitions. [2025-02-08 08:24:53,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 166 transitions, 1117 flow [2025-02-08 08:24:53,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:24:53,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:24:53,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 242 transitions. [2025-02-08 08:24:53,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.55 [2025-02-08 08:24:53,097 INFO L175 Difference]: Start difference. First operand has 66 places, 44 transitions, 233 flow. Second operand 10 states and 242 transitions. [2025-02-08 08:24:53,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 166 transitions, 1117 flow [2025-02-08 08:24:53,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 166 transitions, 1070 flow, removed 21 selfloop flow, removed 3 redundant places. [2025-02-08 08:24:53,153 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 409 flow [2025-02-08 08:24:53,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=409, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2025-02-08 08:24:53,154 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2025-02-08 08:24:53,154 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 409 flow [2025-02-08 08:24:53,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 08:24:53,155 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:53,155 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 08:24:53,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:24:53,155 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 08:24:53,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:53,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1194867896, now seen corresponding path program 1 times [2025-02-08 08:24:53,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:53,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994031890] [2025-02-08 08:24:53,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:53,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:53,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:24:53,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:24:53,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:53,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:53,255 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 08:24:53,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:53,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994031890] [2025-02-08 08:24:53,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994031890] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:53,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:53,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:24:53,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772031210] [2025-02-08 08:24:53,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:53,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:24:53,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:53,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:24:53,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:24:53,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-08 08:24:53,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 409 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 08:24:53,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:53,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-08 08:24:53,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:54,037 INFO L124 PetriNetUnfolderBase]: 8289/12634 cut-off events. [2025-02-08 08:24:54,037 INFO L125 PetriNetUnfolderBase]: For 40050/40067 co-relation queries the response was YES. [2025-02-08 08:24:54,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42025 conditions, 12634 events. 8289/12634 cut-off events. For 40050/40067 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 75239 event pairs, 2088 based on Foata normal form. 313/12936 useless extension candidates. Maximal degree in co-relation 41995. Up to 9107 conditions per place. [2025-02-08 08:24:54,100 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 64 selfloop transitions, 6 changer transitions 59/134 dead transitions. [2025-02-08 08:24:54,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 134 transitions, 1131 flow [2025-02-08 08:24:54,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:24:54,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:24:54,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 158 transitions. [2025-02-08 08:24:54,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.512987012987013 [2025-02-08 08:24:54,102 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 409 flow. Second operand 7 states and 158 transitions. [2025-02-08 08:24:54,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 134 transitions, 1131 flow [2025-02-08 08:24:54,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 134 transitions, 1071 flow, removed 30 selfloop flow, removed 8 redundant places. [2025-02-08 08:24:54,233 INFO L231 Difference]: Finished difference. Result has 72 places, 54 transitions, 393 flow [2025-02-08 08:24:54,233 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=393, PETRI_PLACES=72, PETRI_TRANSITIONS=54} [2025-02-08 08:24:54,234 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 24 predicate places. [2025-02-08 08:24:54,234 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 54 transitions, 393 flow [2025-02-08 08:24:54,234 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 08:24:54,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:54,234 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:54,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:24:54,235 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 08:24:54,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:54,235 INFO L85 PathProgramCache]: Analyzing trace with hash -703644283, now seen corresponding path program 1 times [2025-02-08 08:24:54,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:54,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937785804] [2025-02-08 08:24:54,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:54,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:24:54,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:24:54,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:54,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:54,330 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 08:24:54,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:54,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937785804] [2025-02-08 08:24:54,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937785804] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:54,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:54,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:24:54,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580629657] [2025-02-08 08:24:54,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:54,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:54,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:54,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:54,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:54,333 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-08 08:24:54,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 54 transitions, 393 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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 08:24:54,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:54,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-08 08:24:54,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:55,269 INFO L124 PetriNetUnfolderBase]: 7813/11646 cut-off events. [2025-02-08 08:24:55,269 INFO L125 PetriNetUnfolderBase]: For 30325/30325 co-relation queries the response was YES. [2025-02-08 08:24:55,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37983 conditions, 11646 events. 7813/11646 cut-off events. For 30325/30325 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 67395 event pairs, 1846 based on Foata normal form. 274/11909 useless extension candidates. Maximal degree in co-relation 37954. Up to 4552 conditions per place. [2025-02-08 08:24:55,333 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 72 selfloop transitions, 19 changer transitions 78/174 dead transitions. [2025-02-08 08:24:55,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 174 transitions, 1279 flow [2025-02-08 08:24:55,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:24:55,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:24:55,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 236 transitions. [2025-02-08 08:24:55,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5363636363636364 [2025-02-08 08:24:55,335 INFO L175 Difference]: Start difference. First operand has 72 places, 54 transitions, 393 flow. Second operand 10 states and 236 transitions. [2025-02-08 08:24:55,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 174 transitions, 1279 flow [2025-02-08 08:24:55,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 174 transitions, 1227 flow, removed 18 selfloop flow, removed 8 redundant places. [2025-02-08 08:24:55,439 INFO L231 Difference]: Finished difference. Result has 78 places, 59 transitions, 534 flow [2025-02-08 08:24:55,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=534, PETRI_PLACES=78, PETRI_TRANSITIONS=59} [2025-02-08 08:24:55,439 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 30 predicate places. [2025-02-08 08:24:55,440 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 59 transitions, 534 flow [2025-02-08 08:24:55,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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 08:24:55,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:55,440 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:55,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:24:55,440 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 08:24:55,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:55,441 INFO L85 PathProgramCache]: Analyzing trace with hash 273640498, now seen corresponding path program 1 times [2025-02-08 08:24:55,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:55,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675705710] [2025-02-08 08:24:55,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:55,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:55,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:24:55,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:24:55,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:55,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:55,545 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 08:24:55,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675705710] [2025-02-08 08:24:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675705710] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:55,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:55,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:24:55,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963399019] [2025-02-08 08:24:55,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:55,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:55,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:55,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:55,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:55,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-08 08:24:55,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 59 transitions, 534 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 08:24:55,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:55,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-08 08:24:55,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:56,440 INFO L124 PetriNetUnfolderBase]: 10251/15192 cut-off events. [2025-02-08 08:24:56,440 INFO L125 PetriNetUnfolderBase]: For 57906/57912 co-relation queries the response was YES. [2025-02-08 08:24:56,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50587 conditions, 15192 events. 10251/15192 cut-off events. For 57906/57912 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 90811 event pairs, 1853 based on Foata normal form. 274/15458 useless extension candidates. Maximal degree in co-relation 50555. Up to 5619 conditions per place. [2025-02-08 08:24:56,527 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 66 selfloop transitions, 25 changer transitions 65/161 dead transitions. [2025-02-08 08:24:56,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 161 transitions, 1253 flow [2025-02-08 08:24:56,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:24:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:24:56,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 230 transitions. [2025-02-08 08:24:56,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5227272727272727 [2025-02-08 08:24:56,529 INFO L175 Difference]: Start difference. First operand has 78 places, 59 transitions, 534 flow. Second operand 10 states and 230 transitions. [2025-02-08 08:24:56,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 161 transitions, 1253 flow [2025-02-08 08:24:56,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 161 transitions, 1191 flow, removed 27 selfloop flow, removed 5 redundant places. [2025-02-08 08:24:56,652 INFO L231 Difference]: Finished difference. Result has 84 places, 58 transitions, 592 flow [2025-02-08 08:24:56,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=592, PETRI_PLACES=84, PETRI_TRANSITIONS=58} [2025-02-08 08:24:56,653 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 36 predicate places. [2025-02-08 08:24:56,653 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 58 transitions, 592 flow [2025-02-08 08:24:56,653 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 08:24:56,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:56,654 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 08:24:56,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:24:56,654 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 08:24:56,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:56,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2003233030, now seen corresponding path program 1 times [2025-02-08 08:24:56,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:56,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342753426] [2025-02-08 08:24:56,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:56,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:56,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:24:56,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:24:56,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:56,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:56,726 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 08:24:56,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:56,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342753426] [2025-02-08 08:24:56,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342753426] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:56,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:56,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:24:56,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767328206] [2025-02-08 08:24:56,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:56,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:24:56,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:56,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:24:56,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:24:56,728 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-02-08 08:24:56,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 58 transitions, 592 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 08:24:56,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:56,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-02-08 08:24:56,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:57,538 INFO L124 PetriNetUnfolderBase]: 7927/12384 cut-off events. [2025-02-08 08:24:57,539 INFO L125 PetriNetUnfolderBase]: For 53900/53906 co-relation queries the response was YES. [2025-02-08 08:24:57,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40774 conditions, 12384 events. 7927/12384 cut-off events. For 53900/53906 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 77592 event pairs, 1360 based on Foata normal form. 617/12990 useless extension candidates. Maximal degree in co-relation 40736. Up to 6379 conditions per place. [2025-02-08 08:24:57,648 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 108 selfloop transitions, 5 changer transitions 5/123 dead transitions. [2025-02-08 08:24:57,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 123 transitions, 1552 flow [2025-02-08 08:24:57,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:24:57,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:24:57,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-02-08 08:24:57,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2025-02-08 08:24:57,649 INFO L175 Difference]: Start difference. First operand has 84 places, 58 transitions, 592 flow. Second operand 4 states and 106 transitions. [2025-02-08 08:24:57,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 123 transitions, 1552 flow [2025-02-08 08:24:57,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 123 transitions, 1518 flow, removed 17 selfloop flow, removed 8 redundant places. [2025-02-08 08:24:57,716 INFO L231 Difference]: Finished difference. Result has 75 places, 61 transitions, 604 flow [2025-02-08 08:24:57,716 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=604, PETRI_PLACES=75, PETRI_TRANSITIONS=61} [2025-02-08 08:24:57,717 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2025-02-08 08:24:57,717 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 61 transitions, 604 flow [2025-02-08 08:24:57,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 08:24:57,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:57,717 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:57,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:24:57,717 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 08:24:57,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:57,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1477473271, now seen corresponding path program 1 times [2025-02-08 08:24:57,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:57,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386192924] [2025-02-08 08:24:57,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:57,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:57,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:24:57,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:24:57,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:57,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:57,801 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 08:24:57,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:57,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386192924] [2025-02-08 08:24:57,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386192924] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:57,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:57,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:24:57,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803394924] [2025-02-08 08:24:57,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:57,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:24:57,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:57,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:24:57,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:24:57,804 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-02-08 08:24:57,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 61 transitions, 604 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 08:24:57,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:57,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-02-08 08:24:57,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:58,287 INFO L124 PetriNetUnfolderBase]: 4866/7662 cut-off events. [2025-02-08 08:24:58,287 INFO L125 PetriNetUnfolderBase]: For 30418/30424 co-relation queries the response was YES. [2025-02-08 08:24:58,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26649 conditions, 7662 events. 4866/7662 cut-off events. For 30418/30424 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 44103 event pairs, 704 based on Foata normal form. 460/8111 useless extension candidates. Maximal degree in co-relation 26615. Up to 2446 conditions per place. [2025-02-08 08:24:58,318 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 111 selfloop transitions, 8 changer transitions 13/137 dead transitions. [2025-02-08 08:24:58,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 137 transitions, 1622 flow [2025-02-08 08:24:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:24:58,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:24:58,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2025-02-08 08:24:58,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2025-02-08 08:24:58,319 INFO L175 Difference]: Start difference. First operand has 75 places, 61 transitions, 604 flow. Second operand 5 states and 135 transitions. [2025-02-08 08:24:58,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 137 transitions, 1622 flow [2025-02-08 08:24:58,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 137 transitions, 1560 flow, removed 27 selfloop flow, removed 4 redundant places. [2025-02-08 08:24:58,340 INFO L231 Difference]: Finished difference. Result has 77 places, 63 transitions, 610 flow [2025-02-08 08:24:58,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=610, PETRI_PLACES=77, PETRI_TRANSITIONS=63} [2025-02-08 08:24:58,340 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 29 predicate places. [2025-02-08 08:24:58,340 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 63 transitions, 610 flow [2025-02-08 08:24:58,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 08:24:58,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:58,341 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 08:24:58,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:24:58,341 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 08:24:58,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:58,342 INFO L85 PathProgramCache]: Analyzing trace with hash 843761839, now seen corresponding path program 1 times [2025-02-08 08:24:58,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:58,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675680592] [2025-02-08 08:24:58,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:58,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:58,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 08:24:58,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 08:24:58,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:58,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:58,409 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 08:24:58,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:58,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675680592] [2025-02-08 08:24:58,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675680592] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:58,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:58,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:58,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360412602] [2025-02-08 08:24:58,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:58,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:58,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:58,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:58,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:58,411 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-02-08 08:24:58,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 63 transitions, 610 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 08:24:58,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:58,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-02-08 08:24:58,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:58,672 INFO L124 PetriNetUnfolderBase]: 2412/3776 cut-off events. [2025-02-08 08:24:58,672 INFO L125 PetriNetUnfolderBase]: For 17708/17714 co-relation queries the response was YES. [2025-02-08 08:24:58,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14309 conditions, 3776 events. 2412/3776 cut-off events. For 17708/17714 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 19098 event pairs, 438 based on Foata normal form. 144/3909 useless extension candidates. Maximal degree in co-relation 14275. Up to 1332 conditions per place. [2025-02-08 08:24:58,685 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 61 selfloop transitions, 11 changer transitions 42/119 dead transitions. [2025-02-08 08:24:58,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 119 transitions, 1332 flow [2025-02-08 08:24:58,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:24:58,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:24:58,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2025-02-08 08:24:58,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2025-02-08 08:24:58,687 INFO L175 Difference]: Start difference. First operand has 77 places, 63 transitions, 610 flow. Second operand 6 states and 136 transitions. [2025-02-08 08:24:58,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 119 transitions, 1332 flow [2025-02-08 08:24:58,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 119 transitions, 1227 flow, removed 22 selfloop flow, removed 10 redundant places. [2025-02-08 08:24:58,706 INFO L231 Difference]: Finished difference. Result has 74 places, 48 transitions, 365 flow [2025-02-08 08:24:58,706 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=74, PETRI_TRANSITIONS=48} [2025-02-08 08:24:58,707 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2025-02-08 08:24:58,707 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 48 transitions, 365 flow [2025-02-08 08:24:58,707 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 08:24:58,707 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:58,707 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:58,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:24:58,707 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 08:24:58,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:58,707 INFO L85 PathProgramCache]: Analyzing trace with hash 285117543, now seen corresponding path program 1 times [2025-02-08 08:24:58,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:58,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852433967] [2025-02-08 08:24:58,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:24:58,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:58,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-08 08:24:58,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 08:24:58,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:24:58,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:58,807 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 08:24:58,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:58,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852433967] [2025-02-08 08:24:58,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852433967] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:58,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:58,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:24:58,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784625718] [2025-02-08 08:24:58,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:58,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:24:58,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:58,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:24:58,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:24:58,809 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-08 08:24:58,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 48 transitions, 365 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 08:24:58,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:58,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-08 08:24:58,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:58,978 INFO L124 PetriNetUnfolderBase]: 1030/1658 cut-off events. [2025-02-08 08:24:58,978 INFO L125 PetriNetUnfolderBase]: For 4321/4321 co-relation queries the response was YES. [2025-02-08 08:24:58,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5694 conditions, 1658 events. 1030/1658 cut-off events. For 4321/4321 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6911 event pairs, 329 based on Foata normal form. 8/1665 useless extension candidates. Maximal degree in co-relation 5665. Up to 842 conditions per place. [2025-02-08 08:24:58,983 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 36 selfloop transitions, 3 changer transitions 47/91 dead transitions. [2025-02-08 08:24:58,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 91 transitions, 770 flow [2025-02-08 08:24:58,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:24:58,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:24:58,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 124 transitions. [2025-02-08 08:24:58,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2025-02-08 08:24:58,985 INFO L175 Difference]: Start difference. First operand has 74 places, 48 transitions, 365 flow. Second operand 6 states and 124 transitions. [2025-02-08 08:24:58,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 91 transitions, 770 flow [2025-02-08 08:24:58,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 91 transitions, 553 flow, removed 31 selfloop flow, removed 16 redundant places. [2025-02-08 08:24:58,991 INFO L231 Difference]: Finished difference. Result has 66 places, 40 transitions, 177 flow [2025-02-08 08:24:58,991 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=177, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2025-02-08 08:24:58,992 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-02-08 08:24:58,992 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 40 transitions, 177 flow [2025-02-08 08:24:58,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 08:24:58,992 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:24:58,992 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:58,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:24:58,992 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 08:24:58,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:24:58,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1657941687, now seen corresponding path program 2 times [2025-02-08 08:24:58,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:24:58,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50520788] [2025-02-08 08:24:58,993 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:24:58,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:24:58,997 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 1 equivalence classes. [2025-02-08 08:24:59,000 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 08:24:59,000 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:24:59,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:24:59,077 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 08:24:59,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:24:59,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50520788] [2025-02-08 08:24:59,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50520788] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:24:59,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:24:59,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:24:59,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700594323] [2025-02-08 08:24:59,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:24:59,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:24:59,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:24:59,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:24:59,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:24:59,081 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-08 08:24:59,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 40 transitions, 177 flow. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 08:24:59,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:24:59,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-08 08:24:59,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:24:59,191 INFO L124 PetriNetUnfolderBase]: 384/624 cut-off events. [2025-02-08 08:24:59,192 INFO L125 PetriNetUnfolderBase]: For 786/786 co-relation queries the response was YES. [2025-02-08 08:24:59,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1638 conditions, 624 events. 384/624 cut-off events. For 786/786 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2010 event pairs, 24 based on Foata normal form. 8/632 useless extension candidates. Maximal degree in co-relation 1628. Up to 444 conditions per place. [2025-02-08 08:24:59,193 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2025-02-08 08:24:59,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 59 transitions, 337 flow [2025-02-08 08:24:59,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:24:59,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:24:59,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 121 transitions. [2025-02-08 08:24:59,194 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34375 [2025-02-08 08:24:59,194 INFO L175 Difference]: Start difference. First operand has 66 places, 40 transitions, 177 flow. Second operand 8 states and 121 transitions. [2025-02-08 08:24:59,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 59 transitions, 337 flow [2025-02-08 08:24:59,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 59 transitions, 279 flow, removed 4 selfloop flow, removed 14 redundant places. [2025-02-08 08:24:59,195 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2025-02-08 08:24:59,195 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2025-02-08 08:24:59,196 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places. [2025-02-08 08:24:59,196 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2025-02-08 08:24:59,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 08:24:59,198 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-08 08:24:59,198 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-08 08:24:59,198 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-08 08:24:59,198 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 08:24:59,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 08:24:59,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 08:24:59,199 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:24:59,202 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:24:59,202 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:24:59,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:24:59 BasicIcfg [2025-02-08 08:24:59,207 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:24:59,207 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:24:59,207 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:24:59,208 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:24:59,208 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:24:46" (3/4) ... [2025-02-08 08:24:59,210 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:24:59,213 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 08:24:59,213 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 08:24:59,213 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 08:24:59,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-08 08:24:59,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-08 08:24:59,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 08:24:59,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 08:24:59,278 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:24:59,278 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:24:59,278 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:24:59,279 INFO L158 Benchmark]: Toolchain (without parser) took 13040.29ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 109.5MB in the beginning and 939.3MB in the end (delta: -829.9MB). Peak memory consumption was 769.2MB. Max. memory is 16.1GB. [2025-02-08 08:24:59,283 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:24:59,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.34ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 89.6MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:24:59,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.50ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 87.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:24:59,283 INFO L158 Benchmark]: Boogie Preprocessor took 19.39ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 86.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:24:59,283 INFO L158 Benchmark]: IcfgBuilder took 280.31ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 66.5MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:24:59,284 INFO L158 Benchmark]: TraceAbstraction took 12354.72ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 65.5MB in the beginning and 947.7MB in the end (delta: -882.2MB). Peak memory consumption was 727.2MB. Max. memory is 16.1GB. [2025-02-08 08:24:59,284 INFO L158 Benchmark]: Witness Printer took 70.76ms. Allocated memory is still 1.7GB. Free memory was 947.7MB in the beginning and 939.3MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:24:59,285 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 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.34ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 89.6MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.50ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 87.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.39ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 86.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 280.31ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 66.5MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12354.72ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 65.5MB in the beginning and 947.7MB in the end (delta: -882.2MB). Peak memory consumption was 727.2MB. Max. memory is 16.1GB. * Witness Printer took 70.76ms. Allocated memory is still 1.7GB. Free memory was 947.7MB in the beginning and 939.3MB in the end (delta: 8.3MB). There was no memory consumed. 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, 68 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: 12.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 873 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 868 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2247 IncrementalHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 4 mSDtfsCounter, 2247 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=610occurred in iteration=9, InterpolantAutomatonStates: 88, 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, 1.4s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 1007 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 08:24:59,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE