./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39f434d3f7e7749f4257e03557066c1349e963b1d489e771c14fc3ff33c9a6c7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:48:31,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:48:31,527 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:48:31,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:48:31,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:48:31,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:48:31,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:48:31,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:48:31,552 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:48:31,552 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:48:31,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:48:31,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:48:31,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:48:31,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:48:31,553 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:48:31,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:48:31,553 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:48:31,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:48:31,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:48:31,554 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:48:31,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:48:31,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:48:31,555 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39f434d3f7e7749f4257e03557066c1349e963b1d489e771c14fc3ff33c9a6c7 [2025-03-04 09:48:31,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:48:31,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:48:31,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:48:31,767 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:48:31,767 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:48:31,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i [2025-03-04 09:48:32,855 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8909d340/19312e388807488fad8b5df6ea3f08a6/FLAG7db83df20 [2025-03-04 09:48:33,176 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:48:33,176 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i [2025-03-04 09:48:33,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8909d340/19312e388807488fad8b5df6ea3f08a6/FLAG7db83df20 [2025-03-04 09:48:33,423 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8909d340/19312e388807488fad8b5df6ea3f08a6 [2025-03-04 09:48:33,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:48:33,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:48:33,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:48:33,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:48:33,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:48:33,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131b46be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33, skipping insertion in model container [2025-03-04 09:48:33,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:48:33,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:48:33,721 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:48:33,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:48:33,788 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:48:33,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33 WrapperNode [2025-03-04 09:48:33,789 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:48:33,790 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:48:33,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:48:33,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:48:33,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,828 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 155 [2025-03-04 09:48:33,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:48:33,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:48:33,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:48:33,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:48:33,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,855 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 09:48:33,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,861 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:48:33,874 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:48:33,874 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:48:33,874 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:48:33,875 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (1/1) ... [2025-03-04 09:48:33,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:48:33,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:48:33,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 09:48:33,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 09:48:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:48:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:48:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:48:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:48:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:48:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:48:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:48:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:48:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-04 09:48:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-04 09:48:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:48:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:48:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:48:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:48:33,923 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:48:34,032 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:48:34,034 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:48:34,292 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:48:34,293 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:48:34,469 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:48:34,469 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:48:34,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:48:34 BoogieIcfgContainer [2025-03-04 09:48:34,470 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:48:34,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:48:34,472 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:48:34,475 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:48:34,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:48:33" (1/3) ... [2025-03-04 09:48:34,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8f5233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:48:34, skipping insertion in model container [2025-03-04 09:48:34,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:48:33" (2/3) ... [2025-03-04 09:48:34,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8f5233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:48:34, skipping insertion in model container [2025-03-04 09:48:34,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:48:34" (3/3) ... [2025-03-04 09:48:34,479 INFO L128 eAbstractionObserver]: Analyzing ICFG mix017_pso.opt_tso.opt.i [2025-03-04 09:48:34,490 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:48:34,492 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix017_pso.opt_tso.opt.i that has 5 procedures, 53 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-04 09:48:34,492 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:48:34,541 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:48:34,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2025-03-04 09:48:34,602 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2025-03-04 09:48:34,607 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:48:34,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 105 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2025-03-04 09:48:34,610 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2025-03-04 09:48:34,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2025-03-04 09:48:34,621 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:48:34,629 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;@7b6281db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:48:34,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-04 09:48:34,641 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:48:34,641 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2025-03-04 09:48:34,641 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:48:34,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:48:34,642 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:48:34,642 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:48:34,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:48:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash -436259354, now seen corresponding path program 1 times [2025-03-04 09:48:34,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:48:34,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710000737] [2025-03-04 09:48:34,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:48:34,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:48:34,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 09:48:34,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 09:48:34,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:48:34,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:48:35,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:48:35,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:48:35,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710000737] [2025-03-04 09:48:35,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710000737] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:48:35,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:48:35,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:48:35,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029388125] [2025-03-04 09:48:35,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:48:35,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:48:35,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:48:35,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:48:35,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:48:35,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-03-04 09:48:35,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:35,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:48:35,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-03-04 09:48:35,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:48:39,443 INFO L124 PetriNetUnfolderBase]: 50459/67009 cut-off events. [2025-03-04 09:48:39,443 INFO L125 PetriNetUnfolderBase]: For 228/228 co-relation queries the response was YES. [2025-03-04 09:48:39,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133629 conditions, 67009 events. 50459/67009 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 1945. Compared 394773 event pairs, 6395 based on Foata normal form. 3024/69963 useless extension candidates. Maximal degree in co-relation 133617. Up to 57025 conditions per place. [2025-03-04 09:48:39,787 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 58 selfloop transitions, 2 changer transitions 2/70 dead transitions. [2025-03-04 09:48:39,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 70 transitions, 276 flow [2025-03-04 09:48:39,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:48:39,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:48:39,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2025-03-04 09:48:39,798 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6358024691358025 [2025-03-04 09:48:39,799 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 103 transitions. [2025-03-04 09:48:39,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 70 transitions, 276 flow [2025-03-04 09:48:39,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 70 transitions, 272 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:48:39,811 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2025-03-04 09:48:39,813 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2025-03-04 09:48:39,815 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2025-03-04 09:48:39,816 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2025-03-04 09:48:39,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:39,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:48:39,816 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:48:39,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:48:39,817 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:48:39,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:48:39,818 INFO L85 PathProgramCache]: Analyzing trace with hash 580406949, now seen corresponding path program 1 times [2025-03-04 09:48:39,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:48:39,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112337181] [2025-03-04 09:48:39,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:48:39,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:48:39,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:48:39,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:48:39,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:48:39,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:48:39,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:48:39,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:48:39,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112337181] [2025-03-04 09:48:39,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112337181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:48:39,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:48:39,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:48:39,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652230455] [2025-03-04 09:48:39,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:48:39,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:48:39,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:48:39,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:48:39,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:48:39,887 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-03-04 09:48:39,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:39,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:48:39,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-03-04 09:48:39,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:48:43,170 INFO L124 PetriNetUnfolderBase]: 45383/63229 cut-off events. [2025-03-04 09:48:43,170 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2025-03-04 09:48:43,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125203 conditions, 63229 events. 45383/63229 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 1954. Compared 409121 event pairs, 45383 based on Foata normal form. 1512/64455 useless extension candidates. Maximal degree in co-relation 125193. Up to 59508 conditions per place. [2025-03-04 09:48:43,451 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2025-03-04 09:48:43,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2025-03-04 09:48:43,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:48:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:48:43,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-03-04 09:48:43,454 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2025-03-04 09:48:43,454 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2025-03-04 09:48:43,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2025-03-04 09:48:43,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:48:43,470 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2025-03-04 09:48:43,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2025-03-04 09:48:43,472 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2025-03-04 09:48:43,472 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2025-03-04 09:48:43,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:43,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:48:43,473 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:48:43,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:48:43,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:48:43,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:48:43,474 INFO L85 PathProgramCache]: Analyzing trace with hash 580407703, now seen corresponding path program 1 times [2025-03-04 09:48:43,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:48:43,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343801986] [2025-03-04 09:48:43,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:48:43,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:48:43,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:48:43,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:48:43,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:48:43,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:48:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:48:43,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:48:43,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343801986] [2025-03-04 09:48:43,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343801986] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:48:43,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:48:43,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:48:43,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135434832] [2025-03-04 09:48:43,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:48:43,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:48:43,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:48:43,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:48:43,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:48:43,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-03-04 09:48:43,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:43,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:48:43,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-03-04 09:48:43,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:48:48,362 INFO L124 PetriNetUnfolderBase]: 58859/80463 cut-off events. [2025-03-04 09:48:48,363 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:48:48,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158441 conditions, 80463 events. 58859/80463 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2436. Compared 515147 event pairs, 29911 based on Foata normal form. 0/78951 useless extension candidates. Maximal degree in co-relation 158435. Up to 52393 conditions per place. [2025-03-04 09:48:48,697 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 49 selfloop transitions, 5 changer transitions 85/145 dead transitions. [2025-03-04 09:48:48,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 145 transitions, 584 flow [2025-03-04 09:48:48,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:48:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:48:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2025-03-04 09:48:48,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5300925925925926 [2025-03-04 09:48:48,699 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 8 states and 229 transitions. [2025-03-04 09:48:48,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 145 transitions, 584 flow [2025-03-04 09:48:48,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 145 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:48:48,703 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 150 flow [2025-03-04 09:48:48,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2025-03-04 09:48:48,704 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2025-03-04 09:48:48,704 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 150 flow [2025-03-04 09:48:48,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:48,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:48:48,705 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:48:48,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:48:48,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:48:48,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:48:48,705 INFO L85 PathProgramCache]: Analyzing trace with hash -579716228, now seen corresponding path program 1 times [2025-03-04 09:48:48,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:48:48,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581518096] [2025-03-04 09:48:48,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:48:48,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:48:48,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:48:48,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:48:48,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:48:48,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:48:48,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:48:48,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:48:48,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581518096] [2025-03-04 09:48:48,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581518096] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:48:48,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:48:48,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:48:48,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195357731] [2025-03-04 09:48:48,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:48:48,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:48:48,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:48:48,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:48:48,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:48:48,872 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-03-04 09:48:48,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:48,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:48:48,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-03-04 09:48:48,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:48:52,918 INFO L124 PetriNetUnfolderBase]: 44451/60877 cut-off events. [2025-03-04 09:48:52,918 INFO L125 PetriNetUnfolderBase]: For 46097/46097 co-relation queries the response was YES. [2025-03-04 09:48:53,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154065 conditions, 60877 events. 44451/60877 cut-off events. For 46097/46097 co-relation queries the response was YES. Maximal size of possible extension queue 1757. Compared 374078 event pairs, 9363 based on Foata normal form. 1456/62286 useless extension candidates. Maximal degree in co-relation 154053. Up to 37153 conditions per place. [2025-03-04 09:48:53,212 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 56 selfloop transitions, 3 changer transitions 75/140 dead transitions. [2025-03-04 09:48:53,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 140 transitions, 718 flow [2025-03-04 09:48:53,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:48:53,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:48:53,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 209 transitions. [2025-03-04 09:48:53,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5529100529100529 [2025-03-04 09:48:53,214 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 150 flow. Second operand 7 states and 209 transitions. [2025-03-04 09:48:53,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 140 transitions, 718 flow [2025-03-04 09:48:54,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 140 transitions, 705 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-03-04 09:48:54,067 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 160 flow [2025-03-04 09:48:54,067 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=160, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2025-03-04 09:48:54,068 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 6 predicate places. [2025-03-04 09:48:54,068 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 160 flow [2025-03-04 09:48:54,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:54,068 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:48:54,068 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:48:54,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:48:54,069 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:48:54,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:48:54,069 INFO L85 PathProgramCache]: Analyzing trace with hash -165002486, now seen corresponding path program 1 times [2025-03-04 09:48:54,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:48:54,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862334395] [2025-03-04 09:48:54,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:48:54,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:48:54,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:48:54,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:48:54,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:48:54,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:48:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:48:54,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:48:54,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862334395] [2025-03-04 09:48:54,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862334395] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:48:54,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:48:54,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:48:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349927484] [2025-03-04 09:48:54,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:48:54,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:48:54,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:48:54,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:48:54,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:48:54,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-03-04 09:48:54,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:54,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:48:54,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-03-04 09:48:54,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:48:56,876 INFO L124 PetriNetUnfolderBase]: 33511/46613 cut-off events. [2025-03-04 09:48:56,876 INFO L125 PetriNetUnfolderBase]: For 42833/42833 co-relation queries the response was YES. [2025-03-04 09:48:57,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120051 conditions, 46613 events. 33511/46613 cut-off events. For 42833/42833 co-relation queries the response was YES. Maximal size of possible extension queue 1328. Compared 290142 event pairs, 4023 based on Foata normal form. 1512/48090 useless extension candidates. Maximal degree in co-relation 120035. Up to 26017 conditions per place. [2025-03-04 09:48:57,410 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 79 selfloop transitions, 6 changer transitions 1/92 dead transitions. [2025-03-04 09:48:57,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 92 transitions, 484 flow [2025-03-04 09:48:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:48:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:48:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2025-03-04 09:48:57,412 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2025-03-04 09:48:57,412 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 160 flow. Second operand 4 states and 132 transitions. [2025-03-04 09:48:57,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 92 transitions, 484 flow [2025-03-04 09:48:57,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 92 transitions, 466 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-03-04 09:48:57,696 INFO L231 Difference]: Finished difference. Result has 62 places, 50 transitions, 188 flow [2025-03-04 09:48:57,696 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2025-03-04 09:48:57,697 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2025-03-04 09:48:57,697 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 188 flow [2025-03-04 09:48:57,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:48:57,697 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:48:57,697 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:48:57,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:48:57,697 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:48:57,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:48:57,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1061011991, now seen corresponding path program 1 times [2025-03-04 09:48:57,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:48:57,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072679624] [2025-03-04 09:48:57,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:48:57,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:48:57,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 09:48:57,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 09:48:57,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:48:57,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:48:57,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:48:57,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:48:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072679624] [2025-03-04 09:48:57,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072679624] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:48:57,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:48:57,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:48:57,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865672524] [2025-03-04 09:48:57,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:48:57,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:48:57,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:48:57,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:48:57,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:48:57,874 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-03-04 09:48:57,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 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) [2025-03-04 09:48:57,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:48:57,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-03-04 09:48:57,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:49:00,118 INFO L124 PetriNetUnfolderBase]: 22087/30965 cut-off events. [2025-03-04 09:49:00,118 INFO L125 PetriNetUnfolderBase]: For 27913/27913 co-relation queries the response was YES. [2025-03-04 09:49:00,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84489 conditions, 30965 events. 22087/30965 cut-off events. For 27913/27913 co-relation queries the response was YES. Maximal size of possible extension queue 767. Compared 182213 event pairs, 2295 based on Foata normal form. 1192/32122 useless extension candidates. Maximal degree in co-relation 84475. Up to 12193 conditions per place. [2025-03-04 09:49:00,314 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 101 selfloop transitions, 10 changer transitions 1/118 dead transitions. [2025-03-04 09:49:00,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 118 transitions, 652 flow [2025-03-04 09:49:00,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:49:00,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:49:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2025-03-04 09:49:00,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2025-03-04 09:49:00,315 INFO L175 Difference]: Start difference. First operand has 62 places, 50 transitions, 188 flow. Second operand 5 states and 170 transitions. [2025-03-04 09:49:00,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 118 transitions, 652 flow [2025-03-04 09:49:00,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 118 transitions, 641 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 09:49:00,325 INFO L231 Difference]: Finished difference. Result has 66 places, 54 transitions, 240 flow [2025-03-04 09:49:00,325 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=66, PETRI_TRANSITIONS=54} [2025-03-04 09:49:00,326 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 5 predicate places. [2025-03-04 09:49:00,327 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 54 transitions, 240 flow [2025-03-04 09:49:00,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 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) [2025-03-04 09:49:00,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:49:00,328 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] [2025-03-04 09:49:00,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:49:00,328 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:49:00,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:49:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1851554755, now seen corresponding path program 1 times [2025-03-04 09:49:00,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:49:00,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805674624] [2025-03-04 09:49:00,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:49:00,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:49:00,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 09:49:00,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 09:49:00,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:49:00,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:49:00,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:49:00,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:49:00,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805674624] [2025-03-04 09:49:00,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805674624] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:49:00,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:49:00,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:49:00,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905916830] [2025-03-04 09:49:00,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:49:00,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:49:00,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:49:00,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:49:00,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:49:00,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-03-04 09:49:00,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:49:00,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:49:00,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-03-04 09:49:00,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:49:02,640 INFO L124 PetriNetUnfolderBase]: 29427/40996 cut-off events. [2025-03-04 09:49:02,640 INFO L125 PetriNetUnfolderBase]: For 47790/47790 co-relation queries the response was YES. [2025-03-04 09:49:02,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119240 conditions, 40996 events. 29427/40996 cut-off events. For 47790/47790 co-relation queries the response was YES. Maximal size of possible extension queue 1008. Compared 245822 event pairs, 7687 based on Foata normal form. 368/41350 useless extension candidates. Maximal degree in co-relation 119224. Up to 22186 conditions per place. [2025-03-04 09:49:02,843 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 103 selfloop transitions, 2 changer transitions 48/159 dead transitions. [2025-03-04 09:49:02,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 159 transitions, 1024 flow [2025-03-04 09:49:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:49:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:49:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 191 transitions. [2025-03-04 09:49:02,844 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5895061728395061 [2025-03-04 09:49:02,844 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 240 flow. Second operand 6 states and 191 transitions. [2025-03-04 09:49:02,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 159 transitions, 1024 flow [2025-03-04 09:49:02,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 159 transitions, 952 flow, removed 14 selfloop flow, removed 4 redundant places. [2025-03-04 09:49:02,935 INFO L231 Difference]: Finished difference. Result has 71 places, 55 transitions, 230 flow [2025-03-04 09:49:02,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=230, PETRI_PLACES=71, PETRI_TRANSITIONS=55} [2025-03-04 09:49:02,936 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 10 predicate places. [2025-03-04 09:49:02,936 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 55 transitions, 230 flow [2025-03-04 09:49:02,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:49:02,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:49:02,936 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] [2025-03-04 09:49:02,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:49:02,936 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:49:02,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:49:02,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1065974513, now seen corresponding path program 2 times [2025-03-04 09:49:02,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:49:02,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030152153] [2025-03-04 09:49:02,937 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:49:02,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:49:02,943 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 28 statements into 1 equivalence classes. [2025-03-04 09:49:02,979 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 09:49:02,980 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:49:02,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:49:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:49:03,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:49:03,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030152153] [2025-03-04 09:49:03,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030152153] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:49:03,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:49:03,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:49:03,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740999506] [2025-03-04 09:49:03,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:49:03,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:49:03,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:49:03,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:49:03,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:49:03,113 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-03-04 09:49:03,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 55 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:49:03,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:49:03,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-03-04 09:49:03,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:49:04,425 INFO L124 PetriNetUnfolderBase]: 19367/26989 cut-off events. [2025-03-04 09:49:04,425 INFO L125 PetriNetUnfolderBase]: For 32253/32253 co-relation queries the response was YES. [2025-03-04 09:49:04,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76575 conditions, 26989 events. 19367/26989 cut-off events. For 32253/32253 co-relation queries the response was YES. Maximal size of possible extension queue 698. Compared 152592 event pairs, 2503 based on Foata normal form. 952/27906 useless extension candidates. Maximal degree in co-relation 76557. Up to 8144 conditions per place. [2025-03-04 09:49:04,592 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 120 selfloop transitions, 14 changer transitions 5/145 dead transitions. [2025-03-04 09:49:04,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 145 transitions, 865 flow [2025-03-04 09:49:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:49:04,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:49:04,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2025-03-04 09:49:04,593 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6358024691358025 [2025-03-04 09:49:04,593 INFO L175 Difference]: Start difference. First operand has 71 places, 55 transitions, 230 flow. Second operand 6 states and 206 transitions. [2025-03-04 09:49:04,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 145 transitions, 865 flow [2025-03-04 09:49:04,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 145 transitions, 856 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-03-04 09:49:04,621 INFO L231 Difference]: Finished difference. Result has 73 places, 59 transitions, 302 flow [2025-03-04 09:49:04,621 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=73, PETRI_TRANSITIONS=59} [2025-03-04 09:49:04,622 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 12 predicate places. [2025-03-04 09:49:04,622 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 59 transitions, 302 flow [2025-03-04 09:49:04,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:49:04,622 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:49:04,622 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:49:04,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:49:04,623 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:49:04,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:49:04,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1912658371, now seen corresponding path program 1 times [2025-03-04 09:49:04,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:49:04,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692812068] [2025-03-04 09:49:04,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:49:04,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:49:04,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:49:04,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:49:04,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:49:04,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:49:04,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:49:04,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:49:04,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692812068] [2025-03-04 09:49:04,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692812068] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:49:04,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:49:04,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:49:04,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820538418] [2025-03-04 09:49:04,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:49:04,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:49:04,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:49:04,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:49:04,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:49:04,831 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-03-04 09:49:04,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 59 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:49:04,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:49:04,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-03-04 09:49:04,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand