./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.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 28f58acc3eb15266c6a84eca373e682a200492b696916dc340e2c03025141f5c --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:01:45,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:01:45,614 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 01:01:45,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:01:45,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:01:45,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:01:45,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:01:45,636 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:01:45,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:01:45,636 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:01:45,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:01:45,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:01:45,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:01:45,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:01:45,637 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:01:45,638 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:01:45,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:01:45,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:01:45,638 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 -> 28f58acc3eb15266c6a84eca373e682a200492b696916dc340e2c03025141f5c [2025-03-09 01:01:45,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:01:45,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:01:45,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:01:45,891 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:01:45,891 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:01:45,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2025-03-09 01:01:47,076 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e1ced4a/02b1ea199d344da3a36213607b9da799/FLAG4d6955de2 [2025-03-09 01:01:47,391 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:01:47,392 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2025-03-09 01:01:47,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e1ced4a/02b1ea199d344da3a36213607b9da799/FLAG4d6955de2 [2025-03-09 01:01:47,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e1ced4a/02b1ea199d344da3a36213607b9da799 [2025-03-09 01:01:47,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:01:47,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:01:47,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:01:47,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:01:47,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:01:47,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1c6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47, skipping insertion in model container [2025-03-09 01:01:47,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,455 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:01:47,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:01:47,746 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:01:47,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:01:47,826 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:01:47,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47 WrapperNode [2025-03-09 01:01:47,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:01:47,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:01:47,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:01:47,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:01:47,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,865 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2025-03-09 01:01:47,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:01:47,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:01:47,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:01:47,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:01:47,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,879 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,900 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 01:01:47,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,905 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:01:47,915 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:01:47,915 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:01:47,915 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:01:47,916 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (1/1) ... [2025-03-09 01:01:47,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:01:47,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:01:47,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 01:01:47,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 01:01:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 01:01:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:01:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-09 01:01:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-09 01:01:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-09 01:01:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-09 01:01:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-09 01:01:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-09 01:01:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-09 01:01:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-09 01:01:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:01:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 01:01:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:01:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:01:47,960 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 01:01:48,077 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:01:48,079 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:01:48,342 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 01:01:48,343 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:01:48,556 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:01:48,556 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:01:48,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:01:48 BoogieIcfgContainer [2025-03-09 01:01:48,557 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:01:48,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:01:48,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:01:48,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:01:48,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:01:47" (1/3) ... [2025-03-09 01:01:48,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fb71dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:01:48, skipping insertion in model container [2025-03-09 01:01:48,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:01:47" (2/3) ... [2025-03-09 01:01:48,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fb71dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:01:48, skipping insertion in model container [2025-03-09 01:01:48,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:01:48" (3/3) ... [2025-03-09 01:01:48,567 INFO L128 eAbstractionObserver]: Analyzing ICFG mix023_power.opt_pso.opt_rmo.opt.i [2025-03-09 01:01:48,580 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:01:48,584 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix023_power.opt_pso.opt_rmo.opt.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-09 01:01:48,584 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 01:01:48,635 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 01:01:48,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2025-03-09 01:01:48,692 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2025-03-09 01:01:48,693 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:01:48,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2025-03-09 01:01:48,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2025-03-09 01:01:48,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2025-03-09 01:01:48,706 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:01:48,715 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;@366570e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:01:48,715 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-09 01:01:48,724 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 01:01:48,726 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2025-03-09 01:01:48,726 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:01:48,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:01:48,727 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:01:48,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:01:48,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:01:48,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1458198502, now seen corresponding path program 1 times [2025-03-09 01:01:48,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:01:48,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725774246] [2025-03-09 01:01:48,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:01:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:01:48,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 01:01:48,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 01:01:48,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:01:48,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:01:49,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:01:49,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:01:49,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725774246] [2025-03-09 01:01:49,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725774246] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:01:49,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:01:49,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:01:49,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32538532] [2025-03-09 01:01:49,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:01:49,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:01:49,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:01:49,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:01:49,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:01:49,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:01:49,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:01:49,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:01:49,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:01:49,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:01:53,835 INFO L124 PetriNetUnfolderBase]: 59301/78669 cut-off events. [2025-03-09 01:01:53,835 INFO L125 PetriNetUnfolderBase]: For 277/277 co-relation queries the response was YES. [2025-03-09 01:01:53,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156819 conditions, 78669 events. 59301/78669 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 2198. Compared 479674 event pairs, 7491 based on Foata normal form. 3528/82134 useless extension candidates. Maximal degree in co-relation 156807. Up to 66931 conditions per place. [2025-03-09 01:01:54,365 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2025-03-09 01:01:54,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 75 transitions, 299 flow [2025-03-09 01:01:54,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:01:54,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:01:54,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2025-03-09 01:01:54,375 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2025-03-09 01:01:54,376 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 108 transitions. [2025-03-09 01:01:54,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 75 transitions, 299 flow [2025-03-09 01:01:54,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 294 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 01:01:54,386 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2025-03-09 01:01:54,388 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2025-03-09 01:01:54,392 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2025-03-09 01:01:54,394 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2025-03-09 01:01:54,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:01:54,394 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:01:54,394 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:01:54,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:01:54,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:01:54,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:01:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1543664883, now seen corresponding path program 1 times [2025-03-09 01:01:54,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:01:54,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784741979] [2025-03-09 01:01:54,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:01:54,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:01:54,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 01:01:54,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 01:01:54,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:01:54,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:01:54,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:01:54,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:01:54,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784741979] [2025-03-09 01:01:54,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784741979] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:01:54,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:01:54,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:01:54,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620174759] [2025-03-09 01:01:54,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:01:54,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:01:54,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:01:54,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:01:54,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:01:54,463 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-03-09 01:01:54,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:01:54,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:01:54,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-03-09 01:01:54,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:01:58,102 INFO L124 PetriNetUnfolderBase]: 53337/74913 cut-off events. [2025-03-09 01:01:58,103 INFO L125 PetriNetUnfolderBase]: For 2730/2730 co-relation queries the response was YES. [2025-03-09 01:01:58,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148063 conditions, 74913 events. 53337/74913 cut-off events. For 2730/2730 co-relation queries the response was YES. Maximal size of possible extension queue 2221. Compared 499151 event pairs, 53337 based on Foata normal form. 1764/76398 useless extension candidates. Maximal degree in co-relation 148053. Up to 69814 conditions per place. [2025-03-09 01:01:58,399 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 36 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2025-03-09 01:01:58,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 178 flow [2025-03-09 01:01:58,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:01:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:01:58,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-03-09 01:01:58,400 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43636363636363634 [2025-03-09 01:01:58,400 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 72 transitions. [2025-03-09 01:01:58,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 178 flow [2025-03-09 01:01:58,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:01:58,406 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2025-03-09 01:01:58,406 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2025-03-09 01:01:58,407 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2025-03-09 01:01:58,407 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2025-03-09 01:01:58,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:01:58,407 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:01:58,407 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:01:58,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:01:58,408 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:01:58,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:01:58,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1543665679, now seen corresponding path program 1 times [2025-03-09 01:01:58,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:01:58,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383659168] [2025-03-09 01:01:58,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:01:58,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:01:58,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 01:01:58,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 01:01:58,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:01:58,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:01:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:01:58,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:01:58,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383659168] [2025-03-09 01:01:58,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383659168] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:01:58,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:01:58,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:01:58,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080552986] [2025-03-09 01:01:58,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:01:58,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:01:58,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:01:58,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:01:58,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:01:58,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:01:58,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:01:58,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:01:58,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:01:58,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:01,726 INFO L124 PetriNetUnfolderBase]: 42373/60585 cut-off events. [2025-03-09 01:02:01,726 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:02:01,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117641 conditions, 60585 events. 42373/60585 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1868. Compared 413904 event pairs, 5331 based on Foata normal form. 1764/62328 useless extension candidates. Maximal degree in co-relation 117635. Up to 34369 conditions per place. [2025-03-09 01:02:02,044 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 6 changer transitions 1/92 dead transitions. [2025-03-09 01:02:02,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 92 transitions, 370 flow [2025-03-09 01:02:02,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:02:02,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:02:02,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2025-03-09 01:02:02,046 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2025-03-09 01:02:02,046 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 4 states and 135 transitions. [2025-03-09 01:02:02,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 92 transitions, 370 flow [2025-03-09 01:02:02,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 92 transitions, 369 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 01:02:02,048 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 139 flow [2025-03-09 01:02:02,048 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2025-03-09 01:02:02,048 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2025-03-09 01:02:02,048 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 139 flow [2025-03-09 01:02:02,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:02,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:02,049 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] [2025-03-09 01:02:02,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 01:02:02,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:02,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:02,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1334706221, now seen corresponding path program 1 times [2025-03-09 01:02:02,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:02,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688581496] [2025-03-09 01:02:02,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:02:02,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:02,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 01:02:02,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 01:02:02,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:02:02,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:02,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:02,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688581496] [2025-03-09 01:02:02,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688581496] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:02,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:02,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:02:02,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908073263] [2025-03-09 01:02:02,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:02,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:02:02,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:02,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:02:02,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:02:02,215 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:02:02,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:02,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:02,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:02:02,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:04,222 INFO L124 PetriNetUnfolderBase]: 26373/37705 cut-off events. [2025-03-09 01:02:04,223 INFO L125 PetriNetUnfolderBase]: For 7084/7084 co-relation queries the response was YES. [2025-03-09 01:02:04,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83584 conditions, 37705 events. 26373/37705 cut-off events. For 7084/7084 co-relation queries the response was YES. Maximal size of possible extension queue 947. Compared 237048 event pairs, 3173 based on Foata normal form. 1364/39048 useless extension candidates. Maximal degree in co-relation 83575. Up to 14929 conditions per place. [2025-03-09 01:02:04,449 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 101 selfloop transitions, 10 changer transitions 1/119 dead transitions. [2025-03-09 01:02:04,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 119 transitions, 534 flow [2025-03-09 01:02:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 01:02:04,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 01:02:04,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2025-03-09 01:02:04,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6327272727272727 [2025-03-09 01:02:04,451 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 139 flow. Second operand 5 states and 174 transitions. [2025-03-09 01:02:04,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 119 transitions, 534 flow [2025-03-09 01:02:04,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 119 transitions, 523 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-09 01:02:04,461 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 191 flow [2025-03-09 01:02:04,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2025-03-09 01:02:04,462 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2025-03-09 01:02:04,462 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 191 flow [2025-03-09 01:02:04,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:04,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:04,462 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] [2025-03-09 01:02:04,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:02:04,462 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:04,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:04,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1542038334, now seen corresponding path program 1 times [2025-03-09 01:02:04,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:04,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504159106] [2025-03-09 01:02:04,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:02:04,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:04,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-09 01:02:04,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-09 01:02:04,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:02:04,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:04,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:04,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:04,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504159106] [2025-03-09 01:02:04,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504159106] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:04,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:04,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:02:04,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920237821] [2025-03-09 01:02:04,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:04,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:02:04,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:04,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:02:04,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:02:04,870 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:02:04,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:04,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:04,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:02:04,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:06,513 INFO L124 PetriNetUnfolderBase]: 15625/21881 cut-off events. [2025-03-09 01:02:06,514 INFO L125 PetriNetUnfolderBase]: For 13082/13082 co-relation queries the response was YES. [2025-03-09 01:02:06,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53334 conditions, 21881 events. 15625/21881 cut-off events. For 13082/13082 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 120517 event pairs, 2783 based on Foata normal form. 644/22504 useless extension candidates. Maximal degree in co-relation 53323. Up to 6412 conditions per place. [2025-03-09 01:02:06,634 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 122 selfloop transitions, 14 changer transitions 1/144 dead transitions. [2025-03-09 01:02:06,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 144 transitions, 697 flow [2025-03-09 01:02:06,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:02:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 01:02:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2025-03-09 01:02:06,636 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6393939393939394 [2025-03-09 01:02:06,636 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 191 flow. Second operand 6 states and 211 transitions. [2025-03-09 01:02:06,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 144 transitions, 697 flow [2025-03-09 01:02:06,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 144 transitions, 667 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-09 01:02:06,819 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 241 flow [2025-03-09 01:02:06,819 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2025-03-09 01:02:06,819 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2025-03-09 01:02:06,819 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 241 flow [2025-03-09 01:02:06,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:06,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:06,820 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] [2025-03-09 01:02:06,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 01:02:06,820 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:06,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:06,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1115275191, now seen corresponding path program 1 times [2025-03-09 01:02:06,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:06,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682327284] [2025-03-09 01:02:06,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:02:06,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:06,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:02:06,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:02:06,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:02:06,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:07,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:07,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682327284] [2025-03-09 01:02:07,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682327284] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:07,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:07,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 01:02:07,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468551683] [2025-03-09 01:02:07,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:07,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 01:02:07,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:07,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 01:02:07,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:02:07,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:02:07,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 241 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:07,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:07,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:02:07,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:08,369 INFO L124 PetriNetUnfolderBase]: 12157/16633 cut-off events. [2025-03-09 01:02:08,370 INFO L125 PetriNetUnfolderBase]: For 12166/12166 co-relation queries the response was YES. [2025-03-09 01:02:08,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42079 conditions, 16633 events. 12157/16633 cut-off events. For 12166/12166 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 86907 event pairs, 2589 based on Foata normal form. 160/16772 useless extension candidates. Maximal degree in co-relation 42067. Up to 6412 conditions per place. [2025-03-09 01:02:08,431 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 105 selfloop transitions, 18 changer transitions 1/131 dead transitions. [2025-03-09 01:02:08,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 131 transitions, 655 flow [2025-03-09 01:02:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:02:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:02:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2025-03-09 01:02:08,433 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2025-03-09 01:02:08,433 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 241 flow. Second operand 7 states and 210 transitions. [2025-03-09 01:02:08,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 131 transitions, 655 flow [2025-03-09 01:02:08,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 131 transitions, 609 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-03-09 01:02:08,599 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 251 flow [2025-03-09 01:02:08,599 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2025-03-09 01:02:08,599 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2025-03-09 01:02:08,599 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 251 flow [2025-03-09 01:02:08,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:08,600 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:08,600 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:02:08,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 01:02:08,600 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:08,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:08,600 INFO L85 PathProgramCache]: Analyzing trace with hash -356621822, now seen corresponding path program 1 times [2025-03-09 01:02:08,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:08,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926612878] [2025-03-09 01:02:08,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:02:08,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:08,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 01:02:08,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 01:02:08,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:02:08,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:08,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:08,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:08,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926612878] [2025-03-09 01:02:08,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926612878] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:08,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:08,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 01:02:08,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828557958] [2025-03-09 01:02:08,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:08,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 01:02:08,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:08,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 01:02:08,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:02:08,953 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:02:08,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 251 flow. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:08,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:08,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:02:08,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:11,054 INFO L124 PetriNetUnfolderBase]: 30447/41765 cut-off events. [2025-03-09 01:02:11,055 INFO L125 PetriNetUnfolderBase]: For 33194/33194 co-relation queries the response was YES. [2025-03-09 01:02:11,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107520 conditions, 41765 events. 30447/41765 cut-off events. For 33194/33194 co-relation queries the response was YES. Maximal size of possible extension queue 1306. Compared 250059 event pairs, 5529 based on Foata normal form. 48/41811 useless extension candidates. Maximal degree in co-relation 107507. Up to 15225 conditions per place. [2025-03-09 01:02:11,276 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 100 selfloop transitions, 10 changer transitions 91/208 dead transitions. [2025-03-09 01:02:11,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 208 transitions, 1349 flow [2025-03-09 01:02:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 01:02:11,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-09 01:02:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 288 transitions. [2025-03-09 01:02:11,278 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47603305785123967 [2025-03-09 01:02:11,278 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 251 flow. Second operand 11 states and 288 transitions. [2025-03-09 01:02:11,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 208 transitions, 1349 flow [2025-03-09 01:02:12,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 208 transitions, 974 flow, removed 68 selfloop flow, removed 10 redundant places. [2025-03-09 01:02:12,104 INFO L231 Difference]: Finished difference. Result has 79 places, 63 transitions, 241 flow [2025-03-09 01:02:12,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=241, PETRI_PLACES=79, PETRI_TRANSITIONS=63} [2025-03-09 01:02:12,104 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2025-03-09 01:02:12,104 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 63 transitions, 241 flow [2025-03-09 01:02:12,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:12,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:12,104 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:02:12,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 01:02:12,105 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:12,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1384840306, now seen corresponding path program 2 times [2025-03-09 01:02:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:12,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703985309] [2025-03-09 01:02:12,105 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:02:12,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:12,116 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 1 equivalence classes. [2025-03-09 01:02:12,166 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 01:02:12,168 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:02:12,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:12,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:12,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703985309] [2025-03-09 01:02:12,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703985309] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:12,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:12,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 01:02:12,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311957702] [2025-03-09 01:02:12,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:12,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:02:12,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:12,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:02:12,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:02:12,397 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:02:12,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 63 transitions, 241 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:12,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:12,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:02:12,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:14,107 INFO L124 PetriNetUnfolderBase]: 16097/22271 cut-off events. [2025-03-09 01:02:14,107 INFO L125 PetriNetUnfolderBase]: For 9971/9971 co-relation queries the response was YES. [2025-03-09 01:02:14,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57415 conditions, 22271 events. 16097/22271 cut-off events. For 9971/9971 co-relation queries the response was YES. Maximal size of possible extension queue 632. Compared 118888 event pairs, 3079 based on Foata normal form. 16/22286 useless extension candidates. Maximal degree in co-relation 57397. Up to 11142 conditions per place. [2025-03-09 01:02:14,224 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 100 selfloop transitions, 20 changer transitions 22/149 dead transitions. [2025-03-09 01:02:14,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 149 transitions, 816 flow [2025-03-09 01:02:14,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:02:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:02:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2025-03-09 01:02:14,225 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4961038961038961 [2025-03-09 01:02:14,225 INFO L175 Difference]: Start difference. First operand has 79 places, 63 transitions, 241 flow. Second operand 7 states and 191 transitions. [2025-03-09 01:02:14,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 149 transitions, 816 flow [2025-03-09 01:02:14,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 149 transitions, 781 flow, removed 15 selfloop flow, removed 8 redundant places. [2025-03-09 01:02:14,234 INFO L231 Difference]: Finished difference. Result has 75 places, 77 transitions, 386 flow [2025-03-09 01:02:14,234 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=386, PETRI_PLACES=75, PETRI_TRANSITIONS=77} [2025-03-09 01:02:14,235 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 13 predicate places. [2025-03-09 01:02:14,235 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 77 transitions, 386 flow [2025-03-09 01:02:14,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:14,235 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:14,235 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:02:14,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 01:02:14,236 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:14,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:14,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1187592498, now seen corresponding path program 3 times [2025-03-09 01:02:14,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:14,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633287323] [2025-03-09 01:02:14,237 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 01:02:14,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:14,252 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 1 equivalence classes. [2025-03-09 01:02:14,295 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 01:02:14,295 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-09 01:02:14,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:14,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:14,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633287323] [2025-03-09 01:02:14,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633287323] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:14,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:14,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 01:02:14,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320750015] [2025-03-09 01:02:14,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:14,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 01:02:14,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:14,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 01:02:14,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:02:14,498 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2025-03-09 01:02:14,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 77 transitions, 386 flow. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:14,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:14,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2025-03-09 01:02:14,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:02:16,345 INFO L124 PetriNetUnfolderBase]: 21953/30367 cut-off events. [2025-03-09 01:02:16,346 INFO L125 PetriNetUnfolderBase]: For 29572/29572 co-relation queries the response was YES. [2025-03-09 01:02:16,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85118 conditions, 30367 events. 21953/30367 cut-off events. For 29572/29572 co-relation queries the response was YES. Maximal size of possible extension queue 898. Compared 170338 event pairs, 3343 based on Foata normal form. 16/30382 useless extension candidates. Maximal degree in co-relation 85101. Up to 13208 conditions per place. [2025-03-09 01:02:16,515 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 83 selfloop transitions, 12 changer transitions 84/186 dead transitions. [2025-03-09 01:02:16,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 186 transitions, 1118 flow [2025-03-09 01:02:16,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 01:02:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 01:02:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 225 transitions. [2025-03-09 01:02:16,516 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2025-03-09 01:02:16,516 INFO L175 Difference]: Start difference. First operand has 75 places, 77 transitions, 386 flow. Second operand 8 states and 225 transitions. [2025-03-09 01:02:16,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 186 transitions, 1118 flow [2025-03-09 01:02:16,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 186 transitions, 1112 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-03-09 01:02:16,534 INFO L231 Difference]: Finished difference. Result has 82 places, 64 transitions, 316 flow [2025-03-09 01:02:16,534 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=316, PETRI_PLACES=82, PETRI_TRANSITIONS=64} [2025-03-09 01:02:16,534 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places. [2025-03-09 01:02:16,534 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 64 transitions, 316 flow [2025-03-09 01:02:16,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:16,535 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:02:16,535 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:02:16,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 01:02:16,535 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-09 01:02:16,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:02:16,535 INFO L85 PathProgramCache]: Analyzing trace with hash -124996978, now seen corresponding path program 4 times [2025-03-09 01:02:16,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:02:16,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503034255] [2025-03-09 01:02:16,535 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 01:02:16,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:02:16,549 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 39 statements into 2 equivalence classes. [2025-03-09 01:02:16,560 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 01:02:16,561 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 01:02:16,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:02:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:02:16,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:02:16,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503034255] [2025-03-09 01:02:16,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503034255] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:02:16,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:02:16,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:02:16,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606263075] [2025-03-09 01:02:16,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:02:16,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:02:16,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:02:16,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:02:16,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:02:16,739 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2025-03-09 01:02:16,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 64 transitions, 316 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:02:16,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:02:16,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2025-03-09 01:02:16,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand