./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.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/goblint-regression/13-privatized_27-multiple-protecting2_true.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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:27:20,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:27:20,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:27:20,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:27:20,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:27:20,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:27:20,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:27:20,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:27:20,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:27:20,665 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:27:20,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:27:20,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:27:20,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:27:20,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:27:20,667 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:27:20,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:27:20,667 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:27:20,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:27:20,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:27:20,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:27:20,668 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:27:20,669 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:27:20,669 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:27:20,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:27:20,670 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:27:20,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:27:20,670 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:27:20,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:27:20,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:27:20,671 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:27:20,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:27:20,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:27:20,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:27:20,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:27:20,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:27:20,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:27:20,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:27:20,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:27:20,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:27:20,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:27:20,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:27:20,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:27:20,673 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-11-17 03:27:20,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:27:20,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:27:20,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:27:20,954 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:27:20,955 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:27:20,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-11-17 03:27:22,596 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:27:22,844 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:27:22,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-11-17 03:27:22,862 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4356e117e/5bcada3986fa44ea9b1cbb052f46472a/FLAG2222ded73 [2024-11-17 03:27:23,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4356e117e/5bcada3986fa44ea9b1cbb052f46472a [2024-11-17 03:27:23,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:27:23,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:27:23,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:27:23,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:27:23,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:27:23,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a6b426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23, skipping insertion in model container [2024-11-17 03:27:23,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:27:23,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:27:23,474 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:27:23,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:27:23,612 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:27:23,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23 WrapperNode [2024-11-17 03:27:23,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:27:23,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:27:23,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:27:23,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:27:23,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,677 INFO L138 Inliner]: procedures = 163, calls = 55, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 117 [2024-11-17 03:27:23,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:27:23,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:27:23,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:27:23,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:27:23,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,695 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,705 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-17 03:27:23,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,710 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:27:23,715 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:27:23,716 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:27:23,716 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:27:23,716 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (1/1) ... [2024-11-17 03:27:23,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:27:23,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:27:23,742 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 03:27:23,744 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 03:27:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-17 03:27:23,775 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-17 03:27:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 03:27:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:27:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 03:27:23,775 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 03:27:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:27:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 03:27:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 03:27:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 03:27:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 03:27:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:27:23,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:27:23,777 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 03:27:23,871 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:27:23,872 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:27:24,089 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:27:24,090 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:27:24,241 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:27:24,241 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:27:24,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:27:24 BoogieIcfgContainer [2024-11-17 03:27:24,242 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:27:24,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:27:24,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:27:24,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:27:24,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:27:23" (1/3) ... [2024-11-17 03:27:24,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a5c7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:27:24, skipping insertion in model container [2024-11-17 03:27:24,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:23" (2/3) ... [2024-11-17 03:27:24,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a5c7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:27:24, skipping insertion in model container [2024-11-17 03:27:24,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:27:24" (3/3) ... [2024-11-17 03:27:24,253 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-11-17 03:27:24,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:27:24,266 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-17 03:27:24,266 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:27:24,304 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 03:27:24,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 202 flow [2024-11-17 03:27:24,356 INFO L124 PetriNetUnfolderBase]: 8/92 cut-off events. [2024-11-17 03:27:24,358 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 03:27:24,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 8/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2024-11-17 03:27:24,362 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 202 flow [2024-11-17 03:27:24,366 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 91 transitions, 194 flow [2024-11-17 03:27:24,375 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:27:24,381 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;@1266e269, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:27:24,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-17 03:27:24,392 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:27:24,393 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-17 03:27:24,393 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:27:24,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:27:24,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:27:24,394 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-17 03:27:24,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:27:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash -45579736, now seen corresponding path program 1 times [2024-11-17 03:27:24,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:27:24,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098968643] [2024-11-17 03:27:24,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:27:24,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:27:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:27:24,726 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 03:27:24,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:27:24,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098968643] [2024-11-17 03:27:24,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098968643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:27:24,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:27:24,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:27:24,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60829527] [2024-11-17 03:27:24,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:27:24,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:27:24,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:27:24,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:27:24,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:27:24,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 94 [2024-11-17 03:27:24,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 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) [2024-11-17 03:27:24,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:27:24,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 94 [2024-11-17 03:27:24,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:27:26,001 INFO L124 PetriNetUnfolderBase]: 5526/9846 cut-off events. [2024-11-17 03:27:26,001 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-17 03:27:26,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18562 conditions, 9846 events. 5526/9846 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 69712 event pairs, 1275 based on Foata normal form. 610/10136 useless extension candidates. Maximal degree in co-relation 18498. Up to 5198 conditions per place. [2024-11-17 03:27:26,052 INFO L140 encePairwiseOnDemand]: 70/94 looper letters, 102 selfloop transitions, 19 changer transitions 0/146 dead transitions. [2024-11-17 03:27:26,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 549 flow [2024-11-17 03:27:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:27:26,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:27:26,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 272 transitions. [2024-11-17 03:27:26,062 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5787234042553191 [2024-11-17 03:27:26,064 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 194 flow. Second operand 5 states and 272 transitions. [2024-11-17 03:27:26,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 549 flow [2024-11-17 03:27:26,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 146 transitions, 539 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:27:26,073 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 286 flow [2024-11-17 03:27:26,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2024-11-17 03:27:26,077 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-11-17 03:27:26,077 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 286 flow [2024-11-17 03:27:26,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 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) [2024-11-17 03:27:26,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:27:26,078 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 03:27:26,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:27:26,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-17 03:27:26,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:27:26,079 INFO L85 PathProgramCache]: Analyzing trace with hash -385267476, now seen corresponding path program 1 times [2024-11-17 03:27:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:27:26,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31536199] [2024-11-17 03:27:26,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:27:26,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:27:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:27:26,229 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 03:27:26,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:27:26,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31536199] [2024-11-17 03:27:26,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31536199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:27:26,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:27:26,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:27:26,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213915620] [2024-11-17 03:27:26,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:27:26,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:27:26,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:27:26,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:27:26,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:27:26,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2024-11-17 03:27:26,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 03:27:26,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:27:26,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2024-11-17 03:27:26,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:27:26,758 INFO L124 PetriNetUnfolderBase]: 2893/6063 cut-off events. [2024-11-17 03:27:26,759 INFO L125 PetriNetUnfolderBase]: For 1450/1558 co-relation queries the response was YES. [2024-11-17 03:27:26,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12928 conditions, 6063 events. 2893/6063 cut-off events. For 1450/1558 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 44160 event pairs, 781 based on Foata normal form. 220/6272 useless extension candidates. Maximal degree in co-relation 8400. Up to 3317 conditions per place. [2024-11-17 03:27:26,788 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 102 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-17 03:27:26,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 142 transitions, 677 flow [2024-11-17 03:27:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:27:26,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:27:26,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-11-17 03:27:26,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5824468085106383 [2024-11-17 03:27:26,790 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 286 flow. Second operand 4 states and 219 transitions. [2024-11-17 03:27:26,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 142 transitions, 677 flow [2024-11-17 03:27:26,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 142 transitions, 677 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:27:26,806 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 322 flow [2024-11-17 03:27:26,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=94, PETRI_TRANSITIONS=95} [2024-11-17 03:27:26,807 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-17 03:27:26,808 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 322 flow [2024-11-17 03:27:26,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 03:27:26,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:27:26,808 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] [2024-11-17 03:27:26,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:27:26,809 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-17 03:27:26,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:27:26,810 INFO L85 PathProgramCache]: Analyzing trace with hash -358999378, now seen corresponding path program 1 times [2024-11-17 03:27:26,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:27:26,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345504629] [2024-11-17 03:27:26,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:27:26,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:27:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:27:26,970 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 03:27:26,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:27:26,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345504629] [2024-11-17 03:27:26,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345504629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:27:26,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:27:26,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:27:26,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888539396] [2024-11-17 03:27:26,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:27:26,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:27:26,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:27:26,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:27:26,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:27:26,978 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 94 [2024-11-17 03:27:26,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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 03:27:26,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:27:26,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 94 [2024-11-17 03:27:26,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:27:27,826 INFO L124 PetriNetUnfolderBase]: 3323/6430 cut-off events. [2024-11-17 03:27:27,826 INFO L125 PetriNetUnfolderBase]: For 2379/2379 co-relation queries the response was YES. [2024-11-17 03:27:27,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15209 conditions, 6430 events. 3323/6430 cut-off events. For 2379/2379 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 44472 event pairs, 1615 based on Foata normal form. 100/6518 useless extension candidates. Maximal degree in co-relation 9768. Up to 3062 conditions per place. [2024-11-17 03:27:27,856 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 114 selfloop transitions, 32 changer transitions 0/171 dead transitions. [2024-11-17 03:27:27,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 171 transitions, 867 flow [2024-11-17 03:27:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:27:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:27:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 292 transitions. [2024-11-17 03:27:27,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5177304964539007 [2024-11-17 03:27:27,858 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 322 flow. Second operand 6 states and 292 transitions. [2024-11-17 03:27:27,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 171 transitions, 867 flow [2024-11-17 03:27:27,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 171 transitions, 866 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:27:27,878 INFO L231 Difference]: Finished difference. Result has 100 places, 110 transitions, 526 flow [2024-11-17 03:27:27,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=100, PETRI_TRANSITIONS=110} [2024-11-17 03:27:27,879 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2024-11-17 03:27:27,879 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 110 transitions, 526 flow [2024-11-17 03:27:27,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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 03:27:27,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:27:27,880 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 03:27:27,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:27:27,880 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-17 03:27:27,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:27:27,881 INFO L85 PathProgramCache]: Analyzing trace with hash -701385637, now seen corresponding path program 1 times [2024-11-17 03:27:27,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:27:27,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119380897] [2024-11-17 03:27:27,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:27:27,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:27:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:27:27,959 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 03:27:27,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:27:27,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119380897] [2024-11-17 03:27:27,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119380897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:27:27,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:27:27,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:27:27,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54394034] [2024-11-17 03:27:27,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:27:27,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:27:27,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:27:27,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:27:27,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:27:27,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 94 [2024-11-17 03:27:27,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 110 transitions, 526 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 03:27:27,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:27:27,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 94 [2024-11-17 03:27:27,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:27:28,667 INFO L124 PetriNetUnfolderBase]: 3359/6477 cut-off events. [2024-11-17 03:27:28,667 INFO L125 PetriNetUnfolderBase]: For 6237/6237 co-relation queries the response was YES. [2024-11-17 03:27:28,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17295 conditions, 6477 events. 3359/6477 cut-off events. For 6237/6237 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 45028 event pairs, 834 based on Foata normal form. 44/6516 useless extension candidates. Maximal degree in co-relation 9823. Up to 3764 conditions per place. [2024-11-17 03:27:28,714 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 126 selfloop transitions, 48 changer transitions 0/199 dead transitions. [2024-11-17 03:27:28,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 199 transitions, 1339 flow [2024-11-17 03:27:28,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:27:28,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:27:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 255 transitions. [2024-11-17 03:27:28,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5425531914893617 [2024-11-17 03:27:28,716 INFO L175 Difference]: Start difference. First operand has 100 places, 110 transitions, 526 flow. Second operand 5 states and 255 transitions. [2024-11-17 03:27:28,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 199 transitions, 1339 flow [2024-11-17 03:27:28,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 199 transitions, 1301 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-17 03:27:28,733 INFO L231 Difference]: Finished difference. Result has 106 places, 132 transitions, 877 flow [2024-11-17 03:27:28,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=877, PETRI_PLACES=106, PETRI_TRANSITIONS=132} [2024-11-17 03:27:28,735 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 16 predicate places. [2024-11-17 03:27:28,735 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 132 transitions, 877 flow [2024-11-17 03:27:28,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 03:27:28,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:27:28,736 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 03:27:28,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:27:28,737 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-17 03:27:28,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:27:28,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1483208320, now seen corresponding path program 1 times [2024-11-17 03:27:28,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:27:28,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70342746] [2024-11-17 03:27:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:27:28,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:27:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:27:28,872 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 03:27:28,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:27:28,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70342746] [2024-11-17 03:27:28,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70342746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:27:28,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:27:28,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:27:28,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11728765] [2024-11-17 03:27:28,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:27:28,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:27:28,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:27:28,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:27:28,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:27:28,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2024-11-17 03:27:28,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 132 transitions, 877 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 03:27:28,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:27:28,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2024-11-17 03:27:28,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:27:29,219 INFO L124 PetriNetUnfolderBase]: 1798/3969 cut-off events. [2024-11-17 03:27:29,219 INFO L125 PetriNetUnfolderBase]: For 4502/4546 co-relation queries the response was YES. [2024-11-17 03:27:29,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11607 conditions, 3969 events. 1798/3969 cut-off events. For 4502/4546 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 27481 event pairs, 577 based on Foata normal form. 407/4312 useless extension candidates. Maximal degree in co-relation 8462. Up to 1812 conditions per place. [2024-11-17 03:27:29,242 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 97 selfloop transitions, 21 changer transitions 0/164 dead transitions. [2024-11-17 03:27:29,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 164 transitions, 1236 flow [2024-11-17 03:27:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:27:29,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:27:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 217 transitions. [2024-11-17 03:27:29,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5771276595744681 [2024-11-17 03:27:29,244 INFO L175 Difference]: Start difference. First operand has 106 places, 132 transitions, 877 flow. Second operand 4 states and 217 transitions. [2024-11-17 03:27:29,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 164 transitions, 1236 flow [2024-11-17 03:27:29,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 164 transitions, 1199 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-17 03:27:29,271 INFO L231 Difference]: Finished difference. Result has 109 places, 137 transitions, 886 flow [2024-11-17 03:27:29,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=886, PETRI_PLACES=109, PETRI_TRANSITIONS=137} [2024-11-17 03:27:29,272 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 19 predicate places. [2024-11-17 03:27:29,272 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 137 transitions, 886 flow [2024-11-17 03:27:29,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 03:27:29,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:27:29,273 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, 1] [2024-11-17 03:27:29,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:27:29,273 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-17 03:27:29,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:27:29,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1606143951, now seen corresponding path program 1 times [2024-11-17 03:27:29,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:27:29,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815910616] [2024-11-17 03:27:29,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:27:29,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:27:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:27:29,449 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 03:27:29,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:27:29,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815910616] [2024-11-17 03:27:29,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815910616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:27:29,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:27:29,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:27:29,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611614263] [2024-11-17 03:27:29,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:27:29,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:27:29,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:27:29,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:27:29,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:27:29,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2024-11-17 03:27:29,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 137 transitions, 886 flow. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 03:27:29,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:27:29,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2024-11-17 03:27:29,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:27:29,747 INFO L124 PetriNetUnfolderBase]: 1265/3035 cut-off events. [2024-11-17 03:27:29,747 INFO L125 PetriNetUnfolderBase]: For 3833/3854 co-relation queries the response was YES. [2024-11-17 03:27:29,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9598 conditions, 3035 events. 1265/3035 cut-off events. For 3833/3854 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 19597 event pairs, 326 based on Foata normal form. 86/3115 useless extension candidates. Maximal degree in co-relation 6872. Up to 2164 conditions per place. [2024-11-17 03:27:29,763 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 84 selfloop transitions, 8 changer transitions 0/127 dead transitions. [2024-11-17 03:27:29,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 127 transitions, 955 flow [2024-11-17 03:27:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:27:29,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:27:29,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 186 transitions. [2024-11-17 03:27:29,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4946808510638298 [2024-11-17 03:27:29,765 INFO L175 Difference]: Start difference. First operand has 109 places, 137 transitions, 886 flow. Second operand 4 states and 186 transitions. [2024-11-17 03:27:29,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 127 transitions, 955 flow [2024-11-17 03:27:29,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 830 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-17 03:27:29,775 INFO L231 Difference]: Finished difference. Result has 96 places, 112 transitions, 609 flow [2024-11-17 03:27:29,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=609, PETRI_PLACES=96, PETRI_TRANSITIONS=112} [2024-11-17 03:27:29,778 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2024-11-17 03:27:29,778 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 112 transitions, 609 flow [2024-11-17 03:27:29,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 03:27:29,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:27:29,778 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, 1, 1, 1] [2024-11-17 03:27:29,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:27:29,779 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-17 03:27:29,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:27:29,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1850546340, now seen corresponding path program 1 times [2024-11-17 03:27:29,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:27:29,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899943597] [2024-11-17 03:27:29,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:27:29,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:27:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:27:29,924 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 03:27:29,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:27:29,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899943597] [2024-11-17 03:27:29,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899943597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:27:29,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:27:29,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:27:29,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005813263] [2024-11-17 03:27:29,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:27:29,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:27:29,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:27:29,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:27:29,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:27:29,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2024-11-17 03:27:29,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 112 transitions, 609 flow. Second operand has 6 states, 6 states have (on average 34.666666666666664) internal successors, (208), 6 states have internal predecessors, (208), 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 03:27:29,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:27:29,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2024-11-17 03:27:29,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:27:30,154 INFO L124 PetriNetUnfolderBase]: 808/2035 cut-off events. [2024-11-17 03:27:30,155 INFO L125 PetriNetUnfolderBase]: For 2016/2016 co-relation queries the response was YES. [2024-11-17 03:27:30,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5895 conditions, 2035 events. 808/2035 cut-off events. For 2016/2016 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11888 event pairs, 294 based on Foata normal form. 56/2088 useless extension candidates. Maximal degree in co-relation 4472. Up to 1095 conditions per place. [2024-11-17 03:27:30,164 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 100 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-17 03:27:30,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 142 transitions, 1001 flow [2024-11-17 03:27:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:27:30,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:27:30,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 195 transitions. [2024-11-17 03:27:30,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5186170212765957 [2024-11-17 03:27:30,165 INFO L175 Difference]: Start difference. First operand has 96 places, 112 transitions, 609 flow. Second operand 4 states and 195 transitions. [2024-11-17 03:27:30,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 142 transitions, 1001 flow [2024-11-17 03:27:30,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 142 transitions, 956 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 03:27:30,172 INFO L231 Difference]: Finished difference. Result has 95 places, 109 transitions, 577 flow [2024-11-17 03:27:30,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=577, PETRI_PLACES=95, PETRI_TRANSITIONS=109} [2024-11-17 03:27:30,173 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-17 03:27:30,173 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 109 transitions, 577 flow [2024-11-17 03:27:30,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.666666666666664) internal successors, (208), 6 states have internal predecessors, (208), 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 03:27:30,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:27:30,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:27:30,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:27:30,174 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-17 03:27:30,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:27:30,174 INFO L85 PathProgramCache]: Analyzing trace with hash -511493161, now seen corresponding path program 1 times [2024-11-17 03:27:30,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:27:30,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663849503] [2024-11-17 03:27:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:27:30,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:27:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:27:30,290 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 03:27:30,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:27:30,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663849503] [2024-11-17 03:27:30,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663849503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:27:30,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:27:30,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:27:30,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534528282] [2024-11-17 03:27:30,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:27:30,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:27:30,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:27:30,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:27:30,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:27:30,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 94 [2024-11-17 03:27:30,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 109 transitions, 577 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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 03:27:30,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:27:30,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 94 [2024-11-17 03:27:30,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:27:30,549 INFO L124 PetriNetUnfolderBase]: 875/2032 cut-off events. [2024-11-17 03:27:30,549 INFO L125 PetriNetUnfolderBase]: For 1647/1647 co-relation queries the response was YES. [2024-11-17 03:27:30,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5999 conditions, 2032 events. 875/2032 cut-off events. For 1647/1647 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11399 event pairs, 513 based on Foata normal form. 12/2036 useless extension candidates. Maximal degree in co-relation 3107. Up to 1276 conditions per place. [2024-11-17 03:27:30,557 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 90 selfloop transitions, 43 changer transitions 0/150 dead transitions. [2024-11-17 03:27:30,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 150 transitions, 1061 flow [2024-11-17 03:27:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:27:30,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:27:30,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 246 transitions. [2024-11-17 03:27:30,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43617021276595747 [2024-11-17 03:27:30,559 INFO L175 Difference]: Start difference. First operand has 95 places, 109 transitions, 577 flow. Second operand 6 states and 246 transitions. [2024-11-17 03:27:30,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 150 transitions, 1061 flow [2024-11-17 03:27:30,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 150 transitions, 1035 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 03:27:30,564 INFO L231 Difference]: Finished difference. Result has 94 places, 115 transitions, 696 flow [2024-11-17 03:27:30,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=696, PETRI_PLACES=94, PETRI_TRANSITIONS=115} [2024-11-17 03:27:30,565 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-17 03:27:30,565 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 115 transitions, 696 flow [2024-11-17 03:27:30,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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 03:27:30,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:27:30,565 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, 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] [2024-11-17 03:27:30,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:27:30,566 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-17 03:27:30,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:27:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash 852561388, now seen corresponding path program 1 times [2024-11-17 03:27:30,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:27:30,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991296537] [2024-11-17 03:27:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:27:30,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:27:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:27:30,654 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 03:27:30,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:27:30,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991296537] [2024-11-17 03:27:30,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991296537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:27:30,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:27:30,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:27:30,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357252572] [2024-11-17 03:27:30,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:27:30,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:27:30,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:27:30,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:27:30,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:27:30,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 94 [2024-11-17 03:27:30,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 115 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 03:27:30,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:27:30,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 94 [2024-11-17 03:27:30,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:27:30,812 INFO L124 PetriNetUnfolderBase]: 800/1948 cut-off events. [2024-11-17 03:27:30,812 INFO L125 PetriNetUnfolderBase]: For 1783/1783 co-relation queries the response was YES. [2024-11-17 03:27:30,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5906 conditions, 1948 events. 800/1948 cut-off events. For 1783/1783 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11164 event pairs, 670 based on Foata normal form. 1/1938 useless extension candidates. Maximal degree in co-relation 998. Up to 1660 conditions per place. [2024-11-17 03:27:30,818 INFO L140 encePairwiseOnDemand]: 92/94 looper letters, 0 selfloop transitions, 0 changer transitions 114/114 dead transitions. [2024-11-17 03:27:30,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 114 transitions, 850 flow [2024-11-17 03:27:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:27:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:27:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-11-17 03:27:30,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4858156028368794 [2024-11-17 03:27:30,821 INFO L175 Difference]: Start difference. First operand has 94 places, 115 transitions, 696 flow. Second operand 3 states and 137 transitions. [2024-11-17 03:27:30,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 114 transitions, 850 flow [2024-11-17 03:27:30,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 114 transitions, 849 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:27:30,826 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2024-11-17 03:27:30,826 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2024-11-17 03:27:30,826 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-17 03:27:30,826 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2024-11-17 03:27:30,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 03:27:30,829 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-17 03:27:30,829 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-17 03:27:30,829 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-17 03:27:30,829 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 7 remaining) [2024-11-17 03:27:30,830 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 7 remaining) [2024-11-17 03:27:30,830 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-17 03:27:30,830 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2024-11-17 03:27:30,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:27:30,830 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:27:30,833 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:27:30,833 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:27:30,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:27:30 BasicIcfg [2024-11-17 03:27:30,841 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:27:30,842 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:27:30,842 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:27:30,842 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:27:30,842 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:27:24" (3/4) ... [2024-11-17 03:27:30,844 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:27:30,847 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-11-17 03:27:30,848 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-17 03:27:30,851 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-17 03:27:30,852 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-17 03:27:30,852 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-17 03:27:30,853 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-17 03:27:30,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:27:30,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:27:30,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:27:30,934 INFO L158 Benchmark]: Toolchain (without parser) took 7766.46ms. Allocated memory was 224.4MB in the beginning and 557.8MB in the end (delta: 333.4MB). Free memory was 152.9MB in the beginning and 261.4MB in the end (delta: -108.5MB). Peak memory consumption was 226.3MB. Max. memory is 16.1GB. [2024-11-17 03:27:30,934 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:27:30,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.16ms. Allocated memory is still 224.4MB. Free memory was 152.6MB in the beginning and 191.0MB in the end (delta: -38.3MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2024-11-17 03:27:30,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.91ms. Allocated memory is still 224.4MB. Free memory was 191.0MB in the beginning and 188.7MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 03:27:30,935 INFO L158 Benchmark]: Boogie Preprocessor took 30.38ms. Allocated memory is still 224.4MB. Free memory was 188.7MB in the beginning and 186.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:27:30,935 INFO L158 Benchmark]: IcfgBuilder took 526.18ms. Allocated memory is still 224.4MB. Free memory was 186.6MB in the beginning and 145.9MB in the end (delta: 40.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-17 03:27:30,935 INFO L158 Benchmark]: TraceAbstraction took 6598.40ms. Allocated memory was 224.4MB in the beginning and 557.8MB in the end (delta: 333.4MB). Free memory was 145.1MB in the beginning and 266.6MB in the end (delta: -121.5MB). Peak memory consumption was 214.6MB. Max. memory is 16.1GB. [2024-11-17 03:27:30,936 INFO L158 Benchmark]: Witness Printer took 91.64ms. Allocated memory is still 557.8MB. Free memory was 266.6MB in the beginning and 261.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 03:27:30,937 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.16ms. Allocated memory is still 224.4MB. Free memory was 152.6MB in the beginning and 191.0MB in the end (delta: -38.3MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.91ms. Allocated memory is still 224.4MB. Free memory was 191.0MB in the beginning and 188.7MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.38ms. Allocated memory is still 224.4MB. Free memory was 188.7MB in the beginning and 186.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 526.18ms. Allocated memory is still 224.4MB. Free memory was 186.6MB in the beginning and 145.9MB in the end (delta: 40.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6598.40ms. Allocated memory was 224.4MB in the beginning and 557.8MB in the end (delta: 333.4MB). Free memory was 145.1MB in the beginning and 266.6MB in the end (delta: -121.5MB). Peak memory consumption was 214.6MB. Max. memory is 16.1GB. * Witness Printer took 91.64ms. Allocated memory is still 557.8MB. Free memory was 266.6MB in the beginning and 261.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 707]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 117 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 548 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 535 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1417 IncrementalHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 15 mSDtfsCounter, 1417 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred in iteration=5, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 275 NumberOfCodeBlocks, 275 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 1248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 03:27:30,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE