./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 023d838f 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-023d838-m [2024-11-10 18:07:34,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:07:34,996 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:07:35,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:07:35,004 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:07:35,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:07:35,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:07:35,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:07:35,038 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:07:35,040 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:07:35,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:07:35,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:07:35,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:07:35,043 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:07:35,044 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:07:35,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:07:35,044 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:07:35,045 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:07:35,045 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:07:35,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:07:35,045 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:07:35,046 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:07:35,047 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:07:35,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:07:35,047 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:07:35,047 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:07:35,048 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:07:35,048 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:07:35,048 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:07:35,049 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:07:35,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:07:35,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:07:35,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:07:35,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:07:35,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:07:35,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:07:35,050 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:07:35,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:07:35,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:07:35,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:07:35,051 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:07:35,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:07:35,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-11-10 18:07:35,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:07:35,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:07:35,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:07:35,368 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:07:35,369 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:07:35,371 INFO L431 ainManager$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 [2024-11-10 18:07:36,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:07:37,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:07:37,262 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-11-10 18:07:37,284 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e36757157/7289ffd9bc14496bb3607a29633f2a40/FLAG61e30c2cc [2024-11-10 18:07:37,560 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e36757157/7289ffd9bc14496bb3607a29633f2a40 [2024-11-10 18:07:37,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:07:37,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:07:37,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:07:37,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:07:37,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:07:37,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:07:37" (1/1) ... [2024-11-10 18:07:37,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e53d4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:37, skipping insertion in model container [2024-11-10 18:07:37,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:07:37" (1/1) ... [2024-11-10 18:07:37,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:07:38,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:07:38,097 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:07:38,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:07:38,309 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:07:38,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38 WrapperNode [2024-11-10 18:07:38,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:07:38,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:07:38,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:07:38,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:07:38,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,369 INFO L138 Inliner]: procedures = 163, calls = 55, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 117 [2024-11-10 18:07:38,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:07:38,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:07:38,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:07:38,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:07:38,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,425 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]. [2024-11-10 18:07:38,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,435 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:07:38,453 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:07:38,453 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:07:38,453 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:07:38,454 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (1/1) ... [2024-11-10 18:07:38,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:07:38,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:07:38,501 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) [2024-11-10 18:07:38,505 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 [2024-11-10 18:07:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-10 18:07:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-10 18:07:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 18:07:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:07:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 18:07:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 18:07:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:07:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:07:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 18:07:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 18:07:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 18:07:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:07:38,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:07:38,556 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:07:38,704 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:07:38,706 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:07:38,985 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:07:38,985 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:07:39,203 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:07:39,204 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:07:39,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:07:39 BoogieIcfgContainer [2024-11-10 18:07:39,205 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:07:39,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:07:39,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:07:39,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:07:39,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:07:37" (1/3) ... [2024-11-10 18:07:39,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c25cfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:07:39, skipping insertion in model container [2024-11-10 18:07:39,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:38" (2/3) ... [2024-11-10 18:07:39,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c25cfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:07:39, skipping insertion in model container [2024-11-10 18:07:39,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:07:39" (3/3) ... [2024-11-10 18:07:39,214 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-11-10 18:07:39,237 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:07:39,237 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-10 18:07:39,237 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:07:39,295 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 18:07:39,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 202 flow [2024-11-10 18:07:39,383 INFO L124 PetriNetUnfolderBase]: 8/92 cut-off events. [2024-11-10 18:07:39,384 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 18:07:39,389 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. [2024-11-10 18:07:39,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 202 flow [2024-11-10 18:07:39,396 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 91 transitions, 194 flow [2024-11-10 18:07:39,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:07:39,419 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;@c28ae8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:07:39,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 18:07:39,439 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:07:39,440 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-10 18:07:39,440 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:07:39,440 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:39,441 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:39,442 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)] === [2024-11-10 18:07:39,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:39,449 INFO L85 PathProgramCache]: Analyzing trace with hash -45579736, now seen corresponding path program 1 times [2024-11-10 18:07:39,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:39,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118382790] [2024-11-10 18:07:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:39,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:07:39,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118382790] [2024-11-10 18:07:39,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118382790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:39,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:39,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:07:39,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26541096] [2024-11-10 18:07:39,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:39,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:07:39,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:39,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:07:39,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:07:40,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 94 [2024-11-10 18:07:40,005 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) [2024-11-10 18:07:40,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:40,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 94 [2024-11-10 18:07:40,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:41,581 INFO L124 PetriNetUnfolderBase]: 5526/9846 cut-off events. [2024-11-10 18:07:41,582 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-10 18:07:41,614 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. [2024-11-10 18:07:41,681 INFO L140 encePairwiseOnDemand]: 70/94 looper letters, 102 selfloop transitions, 19 changer transitions 0/146 dead transitions. [2024-11-10 18:07:41,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 549 flow [2024-11-10 18:07:41,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:07:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:07:41,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 272 transitions. [2024-11-10 18:07:41,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5787234042553191 [2024-11-10 18:07:41,699 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 194 flow. Second operand 5 states and 272 transitions. [2024-11-10 18:07:41,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 549 flow [2024-11-10 18:07:41,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 146 transitions, 539 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 18:07:41,714 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 286 flow [2024-11-10 18:07:41,716 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} [2024-11-10 18:07:41,722 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-11-10 18:07:41,724 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 286 flow [2024-11-10 18:07:41,725 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) [2024-11-10 18:07:41,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:41,725 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:41,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:07:41,725 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)] === [2024-11-10 18:07:41,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:41,726 INFO L85 PathProgramCache]: Analyzing trace with hash -385267476, now seen corresponding path program 1 times [2024-11-10 18:07:41,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:41,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55629634] [2024-11-10 18:07:41,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:41,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:42,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:07:42,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:42,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55629634] [2024-11-10 18:07:42,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55629634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:42,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:42,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:07:42,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636392830] [2024-11-10 18:07:42,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:42,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:07:42,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:42,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:07:42,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:07:42,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2024-11-10 18:07:42,039 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) [2024-11-10 18:07:42,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:42,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2024-11-10 18:07:42,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:42,825 INFO L124 PetriNetUnfolderBase]: 2893/6063 cut-off events. [2024-11-10 18:07:42,825 INFO L125 PetriNetUnfolderBase]: For 1450/1558 co-relation queries the response was YES. [2024-11-10 18:07:42,844 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. [2024-11-10 18:07:42,882 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 102 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-10 18:07:42,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 142 transitions, 677 flow [2024-11-10 18:07:42,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:07:42,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:07:42,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-11-10 18:07:42,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5824468085106383 [2024-11-10 18:07:42,887 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 286 flow. Second operand 4 states and 219 transitions. [2024-11-10 18:07:42,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 142 transitions, 677 flow [2024-11-10 18:07:42,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 142 transitions, 677 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:07:42,912 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 322 flow [2024-11-10 18:07:42,913 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} [2024-11-10 18:07:42,913 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-10 18:07:42,914 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 322 flow [2024-11-10 18:07:42,914 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) [2024-11-10 18:07:42,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:42,914 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] [2024-11-10 18:07:42,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:07:42,916 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)] === [2024-11-10 18:07:42,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:42,916 INFO L85 PathProgramCache]: Analyzing trace with hash -358999378, now seen corresponding path program 1 times [2024-11-10 18:07:42,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:42,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457160051] [2024-11-10 18:07:42,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:42,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:43,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:07:43,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:43,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457160051] [2024-11-10 18:07:43,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457160051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:43,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:43,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:07:43,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722096693] [2024-11-10 18:07:43,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:43,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:07:43,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:43,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:07:43,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:07:43,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 94 [2024-11-10 18:07:43,131 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) [2024-11-10 18:07:43,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:43,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 94 [2024-11-10 18:07:43,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:44,165 INFO L124 PetriNetUnfolderBase]: 3323/6430 cut-off events. [2024-11-10 18:07:44,166 INFO L125 PetriNetUnfolderBase]: For 2379/2379 co-relation queries the response was YES. [2024-11-10 18:07:44,184 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. [2024-11-10 18:07:44,226 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 114 selfloop transitions, 32 changer transitions 0/171 dead transitions. [2024-11-10 18:07:44,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 171 transitions, 867 flow [2024-11-10 18:07:44,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:07:44,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:07:44,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 292 transitions. [2024-11-10 18:07:44,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5177304964539007 [2024-11-10 18:07:44,230 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 322 flow. Second operand 6 states and 292 transitions. [2024-11-10 18:07:44,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 171 transitions, 867 flow [2024-11-10 18:07:44,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 171 transitions, 866 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:07:44,264 INFO L231 Difference]: Finished difference. Result has 100 places, 110 transitions, 526 flow [2024-11-10 18:07:44,265 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} [2024-11-10 18:07:44,266 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2024-11-10 18:07:44,266 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 110 transitions, 526 flow [2024-11-10 18:07:44,267 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) [2024-11-10 18:07:44,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:44,267 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] [2024-11-10 18:07:44,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:07:44,268 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)] === [2024-11-10 18:07:44,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:44,269 INFO L85 PathProgramCache]: Analyzing trace with hash -701385637, now seen corresponding path program 1 times [2024-11-10 18:07:44,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:44,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138459012] [2024-11-10 18:07:44,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:44,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:44,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:07:44,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:44,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138459012] [2024-11-10 18:07:44,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138459012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:44,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:44,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:07:44,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907268903] [2024-11-10 18:07:44,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:44,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:07:44,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:44,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:07:44,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:07:44,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 94 [2024-11-10 18:07:44,407 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) [2024-11-10 18:07:44,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:44,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 94 [2024-11-10 18:07:44,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:45,364 INFO L124 PetriNetUnfolderBase]: 3359/6477 cut-off events. [2024-11-10 18:07:45,364 INFO L125 PetriNetUnfolderBase]: For 6237/6237 co-relation queries the response was YES. [2024-11-10 18:07:45,388 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. [2024-11-10 18:07:45,424 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 126 selfloop transitions, 48 changer transitions 0/199 dead transitions. [2024-11-10 18:07:45,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 199 transitions, 1339 flow [2024-11-10 18:07:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:07:45,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:07:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 255 transitions. [2024-11-10 18:07:45,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5425531914893617 [2024-11-10 18:07:45,427 INFO L175 Difference]: Start difference. First operand has 100 places, 110 transitions, 526 flow. Second operand 5 states and 255 transitions. [2024-11-10 18:07:45,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 199 transitions, 1339 flow [2024-11-10 18:07:45,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 199 transitions, 1301 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-10 18:07:45,451 INFO L231 Difference]: Finished difference. Result has 106 places, 132 transitions, 877 flow [2024-11-10 18:07:45,451 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} [2024-11-10 18:07:45,452 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 16 predicate places. [2024-11-10 18:07:45,453 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 132 transitions, 877 flow [2024-11-10 18:07:45,453 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) [2024-11-10 18:07:45,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:45,453 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] [2024-11-10 18:07:45,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:07:45,454 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)] === [2024-11-10 18:07:45,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:45,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1483208320, now seen corresponding path program 1 times [2024-11-10 18:07:45,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:45,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920866478] [2024-11-10 18:07:45,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:45,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:45,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:07:45,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:45,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920866478] [2024-11-10 18:07:45,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920866478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:45,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:45,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:07:45,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512552742] [2024-11-10 18:07:45,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:45,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:07:45,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:45,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:07:45,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:07:45,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2024-11-10 18:07:45,620 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) [2024-11-10 18:07:45,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:45,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2024-11-10 18:07:45,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:46,155 INFO L124 PetriNetUnfolderBase]: 1798/3969 cut-off events. [2024-11-10 18:07:46,155 INFO L125 PetriNetUnfolderBase]: For 4502/4546 co-relation queries the response was YES. [2024-11-10 18:07:46,172 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. [2024-11-10 18:07:46,194 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 97 selfloop transitions, 21 changer transitions 0/164 dead transitions. [2024-11-10 18:07:46,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 164 transitions, 1236 flow [2024-11-10 18:07:46,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:07:46,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:07:46,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 217 transitions. [2024-11-10 18:07:46,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5771276595744681 [2024-11-10 18:07:46,196 INFO L175 Difference]: Start difference. First operand has 106 places, 132 transitions, 877 flow. Second operand 4 states and 217 transitions. [2024-11-10 18:07:46,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 164 transitions, 1236 flow [2024-11-10 18:07:46,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 164 transitions, 1199 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-10 18:07:46,242 INFO L231 Difference]: Finished difference. Result has 109 places, 137 transitions, 886 flow [2024-11-10 18:07:46,242 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} [2024-11-10 18:07:46,243 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 19 predicate places. [2024-11-10 18:07:46,243 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 137 transitions, 886 flow [2024-11-10 18:07:46,244 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) [2024-11-10 18:07:46,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:46,244 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] [2024-11-10 18:07:46,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:07:46,246 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)] === [2024-11-10 18:07:46,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:46,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1606143951, now seen corresponding path program 1 times [2024-11-10 18:07:46,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:46,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503661540] [2024-11-10 18:07:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:07:46,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:46,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503661540] [2024-11-10 18:07:46,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503661540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:46,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:46,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:07:46,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114613156] [2024-11-10 18:07:46,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:46,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:07:46,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:46,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:07:46,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:07:46,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2024-11-10 18:07:46,501 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) [2024-11-10 18:07:46,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:46,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2024-11-10 18:07:46,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:46,923 INFO L124 PetriNetUnfolderBase]: 1265/3035 cut-off events. [2024-11-10 18:07:46,923 INFO L125 PetriNetUnfolderBase]: For 3833/3854 co-relation queries the response was YES. [2024-11-10 18:07:46,935 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. [2024-11-10 18:07:46,951 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 84 selfloop transitions, 8 changer transitions 0/127 dead transitions. [2024-11-10 18:07:46,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 127 transitions, 955 flow [2024-11-10 18:07:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:07:46,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:07:46,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 186 transitions. [2024-11-10 18:07:46,954 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4946808510638298 [2024-11-10 18:07:46,954 INFO L175 Difference]: Start difference. First operand has 109 places, 137 transitions, 886 flow. Second operand 4 states and 186 transitions. [2024-11-10 18:07:46,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 127 transitions, 955 flow [2024-11-10 18:07:46,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 830 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 18:07:46,972 INFO L231 Difference]: Finished difference. Result has 96 places, 112 transitions, 609 flow [2024-11-10 18:07:46,972 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} [2024-11-10 18:07:46,974 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2024-11-10 18:07:46,975 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 112 transitions, 609 flow [2024-11-10 18:07:46,976 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) [2024-11-10 18:07:46,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:46,976 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] [2024-11-10 18:07:46,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:07:46,976 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)] === [2024-11-10 18:07:46,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:46,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1850546340, now seen corresponding path program 1 times [2024-11-10 18:07:46,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:46,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412186258] [2024-11-10 18:07:46,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:46,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:07:47,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412186258] [2024-11-10 18:07:47,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412186258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:47,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:47,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:07:47,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126109177] [2024-11-10 18:07:47,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:47,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:07:47,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:47,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:07:47,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:07:47,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2024-11-10 18:07:47,242 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) [2024-11-10 18:07:47,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:47,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2024-11-10 18:07:47,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:47,569 INFO L124 PetriNetUnfolderBase]: 808/2035 cut-off events. [2024-11-10 18:07:47,569 INFO L125 PetriNetUnfolderBase]: For 2016/2016 co-relation queries the response was YES. [2024-11-10 18:07:47,576 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. [2024-11-10 18:07:47,586 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 100 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-10 18:07:47,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 142 transitions, 1001 flow [2024-11-10 18:07:47,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:07:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:07:47,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 195 transitions. [2024-11-10 18:07:47,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5186170212765957 [2024-11-10 18:07:47,587 INFO L175 Difference]: Start difference. First operand has 96 places, 112 transitions, 609 flow. Second operand 4 states and 195 transitions. [2024-11-10 18:07:47,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 142 transitions, 1001 flow [2024-11-10 18:07:47,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 142 transitions, 956 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-10 18:07:47,598 INFO L231 Difference]: Finished difference. Result has 95 places, 109 transitions, 577 flow [2024-11-10 18:07:47,599 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} [2024-11-10 18:07:47,600 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-10 18:07:47,600 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 109 transitions, 577 flow [2024-11-10 18:07:47,600 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) [2024-11-10 18:07:47,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:47,601 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] [2024-11-10 18:07:47,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:07:47,601 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)] === [2024-11-10 18:07:47,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:47,602 INFO L85 PathProgramCache]: Analyzing trace with hash -511493161, now seen corresponding path program 1 times [2024-11-10 18:07:47,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:47,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692191448] [2024-11-10 18:07:47,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:47,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:07:47,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:47,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692191448] [2024-11-10 18:07:47,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692191448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:47,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:47,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:07:47,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308565118] [2024-11-10 18:07:47,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:47,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:07:47,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:47,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:07:47,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:07:47,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 94 [2024-11-10 18:07:47,750 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) [2024-11-10 18:07:47,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:47,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 94 [2024-11-10 18:07:47,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:48,123 INFO L124 PetriNetUnfolderBase]: 875/2032 cut-off events. [2024-11-10 18:07:48,124 INFO L125 PetriNetUnfolderBase]: For 1647/1647 co-relation queries the response was YES. [2024-11-10 18:07:48,130 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. [2024-11-10 18:07:48,139 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 90 selfloop transitions, 43 changer transitions 0/150 dead transitions. [2024-11-10 18:07:48,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 150 transitions, 1061 flow [2024-11-10 18:07:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:07:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:07:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 246 transitions. [2024-11-10 18:07:48,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43617021276595747 [2024-11-10 18:07:48,142 INFO L175 Difference]: Start difference. First operand has 95 places, 109 transitions, 577 flow. Second operand 6 states and 246 transitions. [2024-11-10 18:07:48,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 150 transitions, 1061 flow [2024-11-10 18:07:48,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 150 transitions, 1035 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 18:07:48,150 INFO L231 Difference]: Finished difference. Result has 94 places, 115 transitions, 696 flow [2024-11-10 18:07:48,151 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} [2024-11-10 18:07:48,151 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-10 18:07:48,152 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 115 transitions, 696 flow [2024-11-10 18:07:48,153 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) [2024-11-10 18:07:48,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:48,153 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] [2024-11-10 18:07:48,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 18:07:48,153 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)] === [2024-11-10 18:07:48,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:48,154 INFO L85 PathProgramCache]: Analyzing trace with hash 852561388, now seen corresponding path program 1 times [2024-11-10 18:07:48,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:48,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871553564] [2024-11-10 18:07:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:48,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:07:48,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:48,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871553564] [2024-11-10 18:07:48,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871553564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:48,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:48,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:07:48,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961906496] [2024-11-10 18:07:48,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:48,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:07:48,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:48,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:07:48,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:07:48,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 94 [2024-11-10 18:07:48,255 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) [2024-11-10 18:07:48,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:48,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 94 [2024-11-10 18:07:48,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:48,479 INFO L124 PetriNetUnfolderBase]: 800/1948 cut-off events. [2024-11-10 18:07:48,479 INFO L125 PetriNetUnfolderBase]: For 1783/1783 co-relation queries the response was YES. [2024-11-10 18:07:48,485 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. [2024-11-10 18:07:48,488 INFO L140 encePairwiseOnDemand]: 92/94 looper letters, 0 selfloop transitions, 0 changer transitions 114/114 dead transitions. [2024-11-10 18:07:48,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 114 transitions, 850 flow [2024-11-10 18:07:48,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:07:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:07:48,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-11-10 18:07:48,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4858156028368794 [2024-11-10 18:07:48,490 INFO L175 Difference]: Start difference. First operand has 94 places, 115 transitions, 696 flow. Second operand 3 states and 137 transitions. [2024-11-10 18:07:48,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 114 transitions, 850 flow [2024-11-10 18:07:48,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 114 transitions, 849 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:07:48,496 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2024-11-10 18:07:48,497 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} [2024-11-10 18:07:48,497 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-10 18:07:48,497 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2024-11-10 18:07:48,498 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) [2024-11-10 18:07:48,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-10 18:07:48,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-10 18:07:48,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-10 18:07:48,502 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 7 remaining) [2024-11-10 18:07:48,502 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 7 remaining) [2024-11-10 18:07:48,502 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-10 18:07:48,502 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2024-11-10 18:07:48,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 18:07:48,503 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:48,507 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 18:07:48,507 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:07:48,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:07:48 BasicIcfg [2024-11-10 18:07:48,515 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:07:48,516 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:07:48,516 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:07:48,516 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:07:48,517 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:07:39" (3/4) ... [2024-11-10 18:07:48,519 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:07:48,523 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-11-10 18:07:48,524 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-10 18:07:48,528 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-10 18:07:48,528 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-10 18:07:48,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-10 18:07:48,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 18:07:48,620 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:07:48,621 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:07:48,621 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:07:48,622 INFO L158 Benchmark]: Toolchain (without parser) took 11057.64ms. Allocated memory was 201.3MB in the beginning and 572.5MB in the end (delta: 371.2MB). Free memory was 133.3MB in the beginning and 264.9MB in the end (delta: -131.5MB). Peak memory consumption was 241.7MB. Max. memory is 16.1GB. [2024-11-10 18:07:48,622 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:07:48,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.91ms. Allocated memory is still 201.3MB. Free memory was 133.2MB in the beginning and 167.6MB in the end (delta: -34.5MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-10 18:07:48,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.14ms. Allocated memory is still 201.3MB. Free memory was 167.6MB in the beginning and 165.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:07:48,622 INFO L158 Benchmark]: Boogie Preprocessor took 81.90ms. Allocated memory is still 201.3MB. Free memory was 165.6MB in the beginning and 163.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:07:48,623 INFO L158 Benchmark]: IcfgBuilder took 751.82ms. Allocated memory is still 201.3MB. Free memory was 163.1MB in the beginning and 122.4MB in the end (delta: 40.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-10 18:07:48,623 INFO L158 Benchmark]: TraceAbstraction took 9308.55ms. Allocated memory was 201.3MB in the beginning and 572.5MB in the end (delta: 371.2MB). Free memory was 121.6MB in the beginning and 270.1MB in the end (delta: -148.5MB). Peak memory consumption was 224.3MB. Max. memory is 16.1GB. [2024-11-10 18:07:48,623 INFO L158 Benchmark]: Witness Printer took 105.30ms. Allocated memory is still 572.5MB. Free memory was 270.1MB in the beginning and 264.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 18:07:48,626 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 104.9MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.91ms. Allocated memory is still 201.3MB. Free memory was 133.2MB in the beginning and 167.6MB in the end (delta: -34.5MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.14ms. Allocated memory is still 201.3MB. Free memory was 167.6MB in the beginning and 165.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 81.90ms. Allocated memory is still 201.3MB. Free memory was 165.6MB in the beginning and 163.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 751.82ms. Allocated memory is still 201.3MB. Free memory was 163.1MB in the beginning and 122.4MB in the end (delta: 40.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9308.55ms. Allocated memory was 201.3MB in the beginning and 572.5MB in the end (delta: 371.2MB). Free memory was 121.6MB in the beginning and 270.1MB in the end (delta: -148.5MB). Peak memory consumption was 224.3MB. Max. memory is 16.1GB. * Witness Printer took 105.30ms. Allocated memory is still 572.5MB. Free memory was 270.1MB in the beginning and 264.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 9.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 548 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 535 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 1.2s 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, 0.2s SatisfiabilityAnalysisTime, 1.6s 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! [2024-11-10 18:07:48,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE