./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix013.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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/mix013.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 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:10:56,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:10:56,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:10:57,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:10:57,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:10:57,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:10:57,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:10:57,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:10:57,038 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:10:57,038 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:10:57,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:10:57,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:10:57,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:10:57,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:10:57,042 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:10:57,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:10:57,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:10:57,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:10:57,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:10:57,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:10:57,044 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:10:57,048 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:10:57,048 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:10:57,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:10:57,049 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:10:57,049 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:10:57,049 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:10:57,049 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:10:57,050 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:10:57,050 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:10:57,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:10:57,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:10:57,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:10:57,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:10:57,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:10:57,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:10:57,053 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:10:57,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:10:57,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:10:57,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:10:57,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:10:57,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:10:57,055 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 [2024-11-17 03:10:57,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:10:57,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:10:57,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:10:57,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:10:57,329 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:10:57,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix013.opt.i [2024-11-17 03:10:58,766 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:10:59,004 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:10:59,004 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix013.opt.i [2024-11-17 03:10:59,029 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9663957/24b90683f56441b78c063a1b09a3261a/FLAGf212df80a [2024-11-17 03:10:59,043 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9663957/24b90683f56441b78c063a1b09a3261a [2024-11-17 03:10:59,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:10:59,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:10:59,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:10:59,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:10:59,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:10:59,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164d07df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59, skipping insertion in model container [2024-11-17 03:10:59,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:10:59,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:10:59,529 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:10:59,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:10:59,627 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:10:59,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59 WrapperNode [2024-11-17 03:10:59,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:10:59,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:10:59,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:10:59,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:10:59,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,698 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 156 [2024-11-17 03:10:59,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:10:59,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:10:59,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:10:59,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:10:59,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,720 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,747 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]. [2024-11-17 03:10:59,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,762 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:10:59,779 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:10:59,779 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:10:59,783 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:10:59,784 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (1/1) ... [2024-11-17 03:10:59,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:10:59,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:10:59,819 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) [2024-11-17 03:10:59,822 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 [2024-11-17 03:10:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:10:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:10:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:10:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:10:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:10:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:10:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:10:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:10:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:10:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:10:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:10:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:10:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:10:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:10:59,876 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:11:00,012 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:11:00,014 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:11:00,352 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:11:00,352 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:11:00,661 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:11:00,662 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:11:00,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:11:00 BoogieIcfgContainer [2024-11-17 03:11:00,663 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:11:00,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:11:00,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:11:00,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:11:00,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:10:59" (1/3) ... [2024-11-17 03:11:00,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7529c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:11:00, skipping insertion in model container [2024-11-17 03:11:00,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:59" (2/3) ... [2024-11-17 03:11:00,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7529c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:11:00, skipping insertion in model container [2024-11-17 03:11:00,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:11:00" (3/3) ... [2024-11-17 03:11:00,673 INFO L112 eAbstractionObserver]: Analyzing ICFG mix013.opt.i [2024-11-17 03:11:00,690 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:11:00,690 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-17 03:11:00,691 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:11:00,753 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:11:00,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-17 03:11:00,827 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-17 03:11:00,828 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:11:00,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 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. [2024-11-17 03:11:00,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-17 03:11:00,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-17 03:11:00,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:11:00,859 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;@7098880e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:11:00,860 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-17 03:11:00,871 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:11:00,871 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2024-11-17 03:11:00,871 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:11:00,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:00,872 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:00,873 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:00,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:00,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1034852393, now seen corresponding path program 1 times [2024-11-17 03:11:00,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:00,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494172525] [2024-11-17 03:11:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:00,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:01,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:01,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494172525] [2024-11-17 03:11:01,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494172525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:01,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:01,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:11:01,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576323187] [2024-11-17 03:11:01,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:01,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:11:01,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:01,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:11:01,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:11:01,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:11:01,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:01,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:01,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:11:01,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:08,891 INFO L124 PetriNetUnfolderBase]: 59301/78609 cut-off events. [2024-11-17 03:11:08,891 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2024-11-17 03:11:09,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156759 conditions, 78609 events. 59301/78609 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 2193. Compared 466414 event pairs, 7533 based on Foata normal form. 3528/82046 useless extension candidates. Maximal degree in co-relation 156747. Up to 66889 conditions per place. [2024-11-17 03:11:09,431 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 60 selfloop transitions, 2 changer transitions 2/72 dead transitions. [2024-11-17 03:11:09,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 72 transitions, 284 flow [2024-11-17 03:11:09,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:11:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:11:09,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-17 03:11:09,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-17 03:11:09,446 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 105 transitions. [2024-11-17 03:11:09,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 72 transitions, 284 flow [2024-11-17 03:11:09,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 280 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:11:09,458 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-17 03:11:09,461 INFO L260 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} [2024-11-17 03:11:09,465 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-17 03:11:09,467 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-17 03:11:09,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:09,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:09,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:09,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:11:09,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:09,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1976684671, now seen corresponding path program 1 times [2024-11-17 03:11:09,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:09,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270435566] [2024-11-17 03:11:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:09,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:09,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:09,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270435566] [2024-11-17 03:11:09,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270435566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:09,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:09,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:11:09,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243044762] [2024-11-17 03:11:09,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:09,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:11:09,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:09,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:11:09,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:11:09,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-17 03:11:09,563 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) [2024-11-17 03:11:09,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:09,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-17 03:11:09,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:14,772 INFO L124 PetriNetUnfolderBase]: 53337/74157 cut-off events. [2024-11-17 03:11:14,773 INFO L125 PetriNetUnfolderBase]: For 2268/2268 co-relation queries the response was YES. [2024-11-17 03:11:14,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146845 conditions, 74157 events. 53337/74157 cut-off events. For 2268/2268 co-relation queries the response was YES. Maximal size of possible extension queue 2207. Compared 484504 event pairs, 53337 based on Foata normal form. 1764/75578 useless extension candidates. Maximal degree in co-relation 146835. Up to 69814 conditions per place. [2024-11-17 03:11:15,197 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 36 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-17 03:11:15,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 178 flow [2024-11-17 03:11:15,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:11:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:11:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-17 03:11:15,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43636363636363634 [2024-11-17 03:11:15,200 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 72 transitions. [2024-11-17 03:11:15,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 178 flow [2024-11-17 03:11:15,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:11:15,229 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-17 03:11:15,229 INFO L260 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} [2024-11-17 03:11:15,230 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-17 03:11:15,230 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-17 03:11:15,231 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) [2024-11-17 03:11:15,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:15,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:15,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:11:15,233 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:15,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:15,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1976685356, now seen corresponding path program 1 times [2024-11-17 03:11:15,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:15,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664098809] [2024-11-17 03:11:15,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:15,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:15,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:15,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:15,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664098809] [2024-11-17 03:11:15,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664098809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:15,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:15,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:11:15,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885377693] [2024-11-17 03:11:15,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:15,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:11:15,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:15,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:11:15,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:11:15,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-17 03:11:15,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:15,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:15,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-17 03:11:15,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:22,152 INFO L124 PetriNetUnfolderBase]: 69225/94441 cut-off events. [2024-11-17 03:11:22,153 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:11:22,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185977 conditions, 94441 events. 69225/94441 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2779. Compared 611832 event pairs, 35971 based on Foata normal form. 0/92679 useless extension candidates. Maximal degree in co-relation 185971. Up to 61559 conditions per place. [2024-11-17 03:11:22,671 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 50 selfloop transitions, 5 changer transitions 88/149 dead transitions. [2024-11-17 03:11:22,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 149 transitions, 600 flow [2024-11-17 03:11:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:11:22,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:11:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 233 transitions. [2024-11-17 03:11:22,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5295454545454545 [2024-11-17 03:11:22,675 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 8 states and 233 transitions. [2024-11-17 03:11:22,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 149 transitions, 600 flow [2024-11-17 03:11:22,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 149 transitions, 599 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:11:22,679 INFO L231 Difference]: Finished difference. Result has 66 places, 47 transitions, 152 flow [2024-11-17 03:11:22,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=152, PETRI_PLACES=66, PETRI_TRANSITIONS=47} [2024-11-17 03:11:22,680 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-11-17 03:11:22,680 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 47 transitions, 152 flow [2024-11-17 03:11:22,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:22,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:22,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:22,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:11:22,681 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:22,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:22,682 INFO L85 PathProgramCache]: Analyzing trace with hash 308404707, now seen corresponding path program 1 times [2024-11-17 03:11:22,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:22,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65003549] [2024-11-17 03:11:22,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:22,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:22,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:22,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:22,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65003549] [2024-11-17 03:11:22,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65003549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:22,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:22,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:11:22,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175120722] [2024-11-17 03:11:22,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:22,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:11:22,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:22,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:11:22,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:11:22,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-17 03:11:22,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 47 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:22,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:22,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-17 03:11:22,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:28,546 INFO L124 PetriNetUnfolderBase]: 52321/71373 cut-off events. [2024-11-17 03:11:28,546 INFO L125 PetriNetUnfolderBase]: For 53522/53522 co-relation queries the response was YES. [2024-11-17 03:11:28,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179517 conditions, 71373 events. 52321/71373 cut-off events. For 53522/53522 co-relation queries the response was YES. Maximal size of possible extension queue 2031. Compared 451092 event pairs, 14323 based on Foata normal form. 1708/73050 useless extension candidates. Maximal degree in co-relation 179505. Up to 45075 conditions per place. [2024-11-17 03:11:29,074 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 62 selfloop transitions, 3 changer transitions 79/150 dead transitions. [2024-11-17 03:11:29,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 150 transitions, 762 flow [2024-11-17 03:11:29,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:11:29,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:11:29,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 219 transitions. [2024-11-17 03:11:29,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5688311688311688 [2024-11-17 03:11:29,077 INFO L175 Difference]: Start difference. First operand has 66 places, 47 transitions, 152 flow. Second operand 7 states and 219 transitions. [2024-11-17 03:11:29,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 150 transitions, 762 flow [2024-11-17 03:11:30,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 150 transitions, 749 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-17 03:11:30,266 INFO L231 Difference]: Finished difference. Result has 68 places, 47 transitions, 162 flow [2024-11-17 03:11:30,266 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=162, PETRI_PLACES=68, PETRI_TRANSITIONS=47} [2024-11-17 03:11:30,267 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 6 predicate places. [2024-11-17 03:11:30,267 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 47 transitions, 162 flow [2024-11-17 03:11:30,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:30,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:30,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:30,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:11:30,268 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:30,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash 724423133, now seen corresponding path program 1 times [2024-11-17 03:11:30,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:30,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695342782] [2024-11-17 03:11:30,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:30,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:30,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:30,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695342782] [2024-11-17 03:11:30,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695342782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:30,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:30,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:11:30,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343979650] [2024-11-17 03:11:30,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:30,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:11:30,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:30,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:11:30,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:11:30,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-17 03:11:30,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 47 transitions, 162 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:30,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:30,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-17 03:11:30,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:34,843 INFO L124 PetriNetUnfolderBase]: 45777/62261 cut-off events. [2024-11-17 03:11:34,843 INFO L125 PetriNetUnfolderBase]: For 60107/60107 co-relation queries the response was YES. [2024-11-17 03:11:35,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160779 conditions, 62261 events. 45777/62261 cut-off events. For 60107/60107 co-relation queries the response was YES. Maximal size of possible extension queue 1592. Compared 372870 event pairs, 10139 based on Foata normal form. 1260/63476 useless extension candidates. Maximal degree in co-relation 160763. Up to 38761 conditions per place. [2024-11-17 03:11:35,231 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 58 selfloop transitions, 3 changer transitions 71/138 dead transitions. [2024-11-17 03:11:35,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 138 transitions, 705 flow [2024-11-17 03:11:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:11:35,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:11:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 207 transitions. [2024-11-17 03:11:35,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5376623376623376 [2024-11-17 03:11:35,234 INFO L175 Difference]: Start difference. First operand has 68 places, 47 transitions, 162 flow. Second operand 7 states and 207 transitions. [2024-11-17 03:11:35,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 138 transitions, 705 flow [2024-11-17 03:11:36,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 138 transitions, 681 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-17 03:11:36,359 INFO L231 Difference]: Finished difference. Result has 69 places, 47 transitions, 167 flow [2024-11-17 03:11:36,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=167, PETRI_PLACES=69, PETRI_TRANSITIONS=47} [2024-11-17 03:11:36,360 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-11-17 03:11:36,360 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 47 transitions, 167 flow [2024-11-17 03:11:36,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:36,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:36,360 INFO L204 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] [2024-11-17 03:11:36,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:11:36,361 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:36,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:36,361 INFO L85 PathProgramCache]: Analyzing trace with hash -939595595, now seen corresponding path program 1 times [2024-11-17 03:11:36,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:36,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421167931] [2024-11-17 03:11:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:36,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:36,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:36,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:36,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421167931] [2024-11-17 03:11:36,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421167931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:36,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:36,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:11:36,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918541893] [2024-11-17 03:11:36,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:36,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:11:36,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:36,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:11:36,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:11:36,707 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:11:36,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 47 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-17 03:11:36,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:36,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:11:36,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:40,044 INFO L124 PetriNetUnfolderBase]: 36373/50173 cut-off events. [2024-11-17 03:11:40,044 INFO L125 PetriNetUnfolderBase]: For 45786/45786 co-relation queries the response was YES. [2024-11-17 03:11:40,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129132 conditions, 50173 events. 36373/50173 cut-off events. For 45786/45786 co-relation queries the response was YES. Maximal size of possible extension queue 1338. Compared 307366 event pairs, 4877 based on Foata normal form. 1764/51902 useless extension candidates. Maximal degree in co-relation 129115. Up to 26545 conditions per place. [2024-11-17 03:11:40,381 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 82 selfloop transitions, 6 changer transitions 1/95 dead transitions. [2024-11-17 03:11:40,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 95 transitions, 503 flow [2024-11-17 03:11:40,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:11:40,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:11:40,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2024-11-17 03:11:40,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-17 03:11:40,382 INFO L175 Difference]: Start difference. First operand has 69 places, 47 transitions, 167 flow. Second operand 4 states and 135 transitions. [2024-11-17 03:11:40,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 95 transitions, 503 flow [2024-11-17 03:11:40,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 95 transitions, 485 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-17 03:11:40,719 INFO L231 Difference]: Finished difference. Result has 64 places, 51 transitions, 195 flow [2024-11-17 03:11:40,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=195, PETRI_PLACES=64, PETRI_TRANSITIONS=51} [2024-11-17 03:11:40,720 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2024-11-17 03:11:40,720 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 51 transitions, 195 flow [2024-11-17 03:11:40,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-17 03:11:40,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:40,721 INFO L204 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] [2024-11-17 03:11:40,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:11:40,721 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:40,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:40,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1638735279, now seen corresponding path program 1 times [2024-11-17 03:11:40,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:40,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057060590] [2024-11-17 03:11:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:40,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:41,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:41,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057060590] [2024-11-17 03:11:41,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057060590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:41,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:41,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:11:41,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293544834] [2024-11-17 03:11:41,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:41,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:11:41,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:41,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:11:41,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:11:41,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:11:41,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:41,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:41,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:11:41,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:43,438 INFO L124 PetriNetUnfolderBase]: 24405/33965 cut-off events. [2024-11-17 03:11:43,438 INFO L125 PetriNetUnfolderBase]: For 30878/30878 co-relation queries the response was YES. [2024-11-17 03:11:43,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93414 conditions, 33965 events. 24405/33965 cut-off events. For 30878/30878 co-relation queries the response was YES. Maximal size of possible extension queue 828. Compared 198365 event pairs, 2855 based on Foata normal form. 1364/35294 useless extension candidates. Maximal degree in co-relation 93399. Up to 12289 conditions per place. [2024-11-17 03:11:43,626 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 105 selfloop transitions, 10 changer transitions 1/122 dead transitions. [2024-11-17 03:11:43,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 122 transitions, 676 flow [2024-11-17 03:11:43,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:11:43,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:11:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-11-17 03:11:43,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6327272727272727 [2024-11-17 03:11:43,628 INFO L175 Difference]: Start difference. First operand has 64 places, 51 transitions, 195 flow. Second operand 5 states and 174 transitions. [2024-11-17 03:11:43,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 122 transitions, 676 flow [2024-11-17 03:11:43,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 122 transitions, 665 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 03:11:43,635 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 247 flow [2024-11-17 03:11:43,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=247, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2024-11-17 03:11:43,636 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 6 predicate places. [2024-11-17 03:11:43,636 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 247 flow [2024-11-17 03:11:43,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:43,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:43,636 INFO L204 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] [2024-11-17 03:11:43,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:11:43,636 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:43,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:43,637 INFO L85 PathProgramCache]: Analyzing trace with hash 165684557, now seen corresponding path program 1 times [2024-11-17 03:11:43,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:43,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767778037] [2024-11-17 03:11:43,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:43,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:43,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:43,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:43,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767778037] [2024-11-17 03:11:43,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767778037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:43,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:43,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:11:43,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982136224] [2024-11-17 03:11:43,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:43,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:11:43,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:43,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:11:43,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:11:43,952 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:11:43,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:43,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:43,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:11:43,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand